# Stata Generate Count By Group

The line begins with the command foreach followed by the name I want to use to represent a group (exactly the same as a macro). In low-income and middle-income countries, incorporation of kangaroo mother care for all infants with low birthweight, irrespective of place of birth, could substantially reduce neonatal and infant mortality. In this blog post I am going to show you how to create descriptive summary statistics tables in R. The Stata Journal (2002) 2, Number 1, pp. I work in a field where most people do data munging with Stata. 2 _times → number of times used use _times as frequency weights to identify the matched treated and. 0222888 PONE-D-19-13352 Research Article Medicine and health sciences Women's health Maternal health Antenatal care Medicine and health sciences Women's health Maternal health Pregnancy Medicine and health sciences Women's health Obstetrics and gynecology Pregnancy Earth sciences. rbeta(a, b) generates beta-distribution beta(a, b) random numbers. How do I count how many As and Bs? I count # of As using egen, but you may notice that if the value is B, # of A would be missing. Stata: Descriptive Statistics - Mean, median, variability 30 May 2011 Tags: Stata and Tutorial. How to Group and Outline Excel Data. For example, for the year 2001, we want observations that pair nbc with abc and cbs. It returns the number of variables in varlist for which values are equal to any integer value in a supplied numlist. I wonder if there are any other methods (Especially in STATA) to solve this problem. "meta-regression"--isn't this. In pandas, if no index is specified, an integer index is also used by default (first row = 0, second row = 1, and so on). I use estout to generate tables of summary statistics and regression results that can be easily imported into LaTeX. numeric(paste0(df[i,],collapse="")) However, I don't want to define the column names explicitly because their number and names maybe different each time. The command unique without a by reports the number of unique values for the varlist. With by: we often exploit the fact that subscripts are deﬁned within group, not within dataset. This section is a gentle introduction to programming Stata. From within Stata, use the commands ssc install tab_chi and ssc install ipf to get the most current versions of these programs. Upload document Create flashcards Stata User's Group Presentation. CPC provides a number of research tools to the population and health information system research communities, including source code, documentation, tutorials, data security plans, presentations, and detailed information on a variety of topics. The following guide outlines the procedure you would need to follow. Often, users need to generate quantile rankings based on the values to create quantile groups like quartiles, quintiles, or deciles. Paradoxically, cancers with high ARID1A mutation rates typically lack copy number alterations (CNAs). If no conditions are speciﬁed, count displays the number of observations in the data. Zero-truncated poisson regression is used to model count data for which the value zero Please Note: The purpose of this page is to show how to use various data analysis commands. I have a data set with a dummy variable for eitc eligibility. Comic Sans MS Arial Euclid Symbol Wingdings Default Design Stata Workshop #1 Outline Do files Data Entry Stata Commands Ways to enter data Data Management Stata Commands Merging two datasets Play with Variables Dummy Variables Data Description Stata Commands Example: raw data Example: grouped data Some Review Estimation Estimation of Parameters. First, load a data set, and then run the following command with the count option:. This course is aimed at researchers and other professionals, from any discipline, who want to learn how to work more efficiently with Stata. Generate Travel time (traveltime3) _____. Alan Neustadtl 46,150 views. grouplabs - create meaningful value labels for group variables by Sergiy Radyakin Description. uk Abstract. Cox Department of Geography Durham University Durham City, UK n. I want to generate a variable that tells me how many ID´s each place has. This video demonstrates how to create a new variable that is calculated from other variables. For a list of topics covered by this series, see the Introduction. It can be a memory-intensive procedure, but the syntax is pretty simple. The list of all available distributions is given in. View maps on Mobile, Tablet, and Computers. I have heard that R is best for network data, but right now using Stata, I created a variable for each individual and then I am running an if statement that looks in the [_n+x] cell for the individual in the given column and places a one. Click the button. For trading days, we first need to create a variable that counts the number of days within each company_id. Colin Cameron and Pravin K. */ ***** ***** * Univariate Plots in Stata ***** ***** * Create a bar plot of low birth weight (low) * Create a pie chart of low birth weight (ugh) * Create a table low birth weight (compute proportion of low birth weight) * Create a histogram of birth weight * Create a boxplot of birth weight * Create a stem and leaf plot of birth weight. For example, you might want to convert a continuous reading score that ranges from 0 to 100 into 3 groups (say low, medium and high). This guide explains how maps like those with adult and youth literacy rates in 2010 can be created with Stata. Stata is a command-driven statistical package for statistical analysis, data management and graphic presentations. GroupMe brings group text messaging to every phone. Frequently it is useful, for instance, to compare infant mortality in countries with low, average and high urbanisation; as urbanisation is a continuous variable we need to break it into a categorical variable with, as an example, three groups. HPE ProLiant DL120 Gen9 Server - Overview emr_na-c04517576 1871050 1871055 41197 2018-06-30T16:24:31. The line begins with the command foreach followed by the name I want to use to represent a group (exactly the same as a macro). Outcomes were assessed at baseline, 3 months (primary), and 6 months (secondary endpoint). In Stata, you can use the contract command to calculate frequency for variables and save your results into a new data set. The LCA_Distal_LTB Stata function is designed to work with Stata Version 11. Click the button. The integer records the number of time units (whatever you define them to be) that have passed from an agreed-upon base, which for Stata is 1960. "Stata 9 introduced the xtline command. Give it a try and see how it works. The word "in" tells Stata it will perform some action on whatever follows the word "in". The functions lead/lag accept three arguments: the fist argument is the vector of values to lag, the second argument is the number of lags, the third argument corresponds to the time vector. In this case, the groups are defined by the unique combinations of values in the grouping variables. *!chaid version 2. Create a random number generator in Excel using the RANDBETWEEN function to output integers between two whole numbers. Get a free quote or find an insurance agent near you!. Stata to R translation, dplyr style 14 Jun 2016. at least 1 number, 1 uppercase and 1 lowercase letter; not based on your username or email address. In particular, Stata 14 includes a new default random-number generator (RNG) called the Mersenne Twister (Matsumoto and Nishimura 1998), a new function that generates random integers, the ability to generate random numbers from an interval, and several new functions that generate random variates from nonuniform distributions. Xtline allows you to generate linear plots for panel data. In pandas, if no index is specified, an integer index is also used by default (first row = 0, second row = 1, and so on). on using the Builder to create models with generalized responses and multilevel structure. Stata does not have an exactly analogous concept. Generate a map file (kmlwriter) b. Stata egen sum keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Upload document Create flashcards Useful Stata commands. For more than two groups, you can use PROC PLAN to randomly assign each observation to a group such that the groups are of equal size, or as equal as possible when the data set is not evenly divisible by the number of groups. I got this by tabulating countryX year, but this gives me a clumsy format with the countries in the row and years in columns. In Stata, the. If you want a SAS dataset instead of just a report, then you can use the OUT= option with those two procedures, as well (and the OUTPUT statement with PROC MEANS/SUMMARY, as shown by Art's example). Box plots have been a standard statistical graph since John W. org/en/v/BhET/ introduce the command of recode and 3 of its 5 recoding rules. To do this, create a folder on your desktop called stata. Almost every computer can take advantage of the advanced multiprocessing capabilities of Stata/MP. First, the choices seem endless, with dozens of distributions competing for your a. The following guide outlines the procedure you would need to follow. When _n is combined with by, however, _n is the observation number within by-group, in this case, within oldid. cont_out = Continuous outcome of interest. Chapter 2: STATA Code. Chapter 19, Section 19. They can be used for both categorical and quantitative variables. My comments are basically the same as the other commenter. stage STATA assumes that all variables are numerical and any data entered not numerical will be rejected. For the latest version, open it from the course disk space. Number of groups. One of them is an ID and another one is Place. When you perform an analysis, you can ask Stata to just count all the responses with 1. The more action the better, of course. 72 1 1 7 1 4 2. Select the desired mode: number of groups or maximum group size; Enter the number of groups to create or maximum group size in the box. Stata summary statistics by group keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. duplicates — Report, tag, or drop duplicate observations. sort group score by group: generate n1 = _n by group: generate n2 = _N list score group id nt n1 n2 1. Topic 21 diet diversity stata It is a simple COUNT OF FOOD GROUPS that a household or an individual has consumed over the preceding 24 hours (FAO Guidelines. Also Check for Jobs with similar Skills and Titles Top Stata Architecture Jobs* Free Alerts Shine. Prior to SAS/STAT 13. Many of Stata's commands can be executed on a group-by-group basis. Stata has a number of special functions for generating random numbers. When you perform an analysis, you can ask Stata to just count all the responses with 1. Prob > chi2 = 0. One of Stata’s most powerful and useful commands is egen. (In Stata logical values are represented by 0/1 (false/true). Besides grouping part of a regular expression together, parentheses also create a numbered capturing group. The Stata built-in variables _n and _N are used to count observations for the purpose of generating IDs, finding the lowest and highest scores for each group of observations, finding duplicates etc. duplicates report varlist if in. *!chaid version 2. Remarks and examples. Reshape from wide to long. ARID1A inactivation causes mitotic defects. Learn why the Common Core is important for your child. The big window is called the Results window. To do this, you use the by prefix command. This will create a variable that is a constant within the levels of foreign. Xtline allows you to generate linear plots for panel data. by Michael Stepner. This table lists common tasks you might want to perform using grouping. Of course, to use the by command we must first sort our data on the by variable. The following guide outlines the procedure you would need to follow. use eventdates, clear by company_id: gen eventcount=_N Cut the dataset down to just one observation for each company. you omit a particular group), you don’t have to change anything: the results get automatically updated in LaTeX. asdoc creates excellent tables of summary statistics such as mean, standard deviation, minimum, maximum, etc. The order is decided first by the order of the first grouping variable, then by the order of the second grouping variable, and so on. Detect duplicate observations in a data set in Stata. vreverse group, generate(r_group) note: group not labeled. Following are examples of how to create new variables in Stata using the gen (short for generate) and egen commands:. Order command by Stata Help - if you want to change the order of variables in the table you create from the Stata dataset. The Stata website is also a repository for datasets used in the Stata manuals and in a number of statistical books. Gluzmann and D. The syntax should look like this in general: reshape long stub, i(i) j(j) In this case, 1) the stub should be inc, which is the variable to be converted from wide to long, 2) i is the id variable, which is the unique identifier of observations in wide form, and 3) j is the year variable that I am going to create – it tells Stata that suffix of inc (i. Appreciate any help. 1 or higher. Prydz, Jorge Soler Lo. "meta-regression"--isn't this. PSM employs a predicted probability of group membership e. For example, you can count the number of sales transactions, or the number of transactions in a single city. _N creates a running count of the total observations per group _n creates a running index of observations in a group generate mpgSq = mpg^2 Stata has 6 data. Note that the dashed lines appear as solid lines in Stata's results window: Standard errors, p-values, and summary statistics. Next we generate a new variable called “age” and set it equal to missing (. by Michael Stepner. Calculate the descriptive statistics of all variables in the data. Analysis Using Grouping Variables. help wbopendata. Clustered standard errors are popular and very easy to compute in some popular packages such as Stata, but how to compute them in R? With panel data it's generally wise to cluster on the dimension of the individual effect as both heteroskedasticity and autocorrellation are almost certain to exist in the residuals. Stata is a statistical software package we'll be using for much of this course. _N is Stata notation for the total number of observations. Cox Department of Geography Durham University Durham City, UK n. Histograms are a very useful graphical tool for understanding the distribution of a variable. STATA: Time series data A. Creating a Scatterplot. _n is Stata notation for the current observation number. _N creates a running count of the total observations per group _n creates a running index of observations in a group generate mpgSq = mpg^2 Stata has 6 data. you may also like to download Stata 15 Crack. Prior to that, some other commands such as the following were available: renpfix male m. Let's take a look at an example. The problem with using -tab- to count the unique number of values is its row limits: 12,000 rows (Stata/MP and Stata/SE), 3,000 rows (Stata/IC), or 500 rows (Small Stata). Gluzmann and D. Once you have started Stata, you will see a large black window that is surrounded by a number of smaller white windows. Zero-truncated poisson regression is used to model count data for which the value zero Please Note: The purpose of this page is to show how to use various data analysis commands. _N is Stata notation for the total number of observations. vreverse group, generate(r_group) note: group not labeled. Group message with the people in your life that are important to you. Nevertheless, some features often catch users out, resulting in unnoticed errors or hours working out what has gone wrong. N= prints the number of observations in a BY group at the end of that BY group and (because of the SUM statement) prints the number of observations in the data set at the end of the report. In contrast, the question mark stands for a single character in a variable name. wpd String Variables in Stata - Numeric to String, and Concatenating1 The following document provides an example of how to create string variables from numeric variables, and then concatenate string variables into one. The following guide outlines the procedure you would need to follow. The more action the better, of course. In particular, Stata 14 includes a new default random-number generator (RNG) called the Mersenne Twister (Matsumoto and Nishimura 1998), a new function that generates random integers, the ability to generate random numbers from an interval, and several new functions that generate random variates from nonuniform distributions. I use estout to generate tables of summary statistics and regression results that can be easily imported into LaTeX. - Davis LAGS AND CHANGES IN STATA Suppose we have annual data on variable GDP and we want to compute lagged GDP, the annual change in GDP and the annual percentage change in GDP. How can I create a varlist? Showing 1-4 of 4 messages. BASIC INTRODUCTION THE VERY BASICS Stata is a statistical program that allows you to analyze data both graphically and quantitatively. The problem with using -tab- to count the unique number of values is its row limits: 12,000 rows (Stata/MP and Stata/SE), 3,000 rows (Stata/IC), or 500 rows (Small Stata). Don't like this video? Creating New Variables Using Stata - Duration: 31:24. Example in R. Get a free quote or find an insurance agent near you!. The word “in” tells Stata it will perform some action on whatever follows the word “in”. Generate Travel time (traveltime3) _____. 33 cal ka BP and thought to be associated with the Aurignacian lithic industry, is one of the few relatively well preserved representatives of the earliest modern Europeans. Analysis Using Grouping Variables. Help us caption and translate this video on Amara. These range from simply. If you are new to Stata we strongly recommend reading all the articles in the Stata Basics section. How to write a simple macro in Stata. Stata will know that it means if foreign == 1 or if foreign ~= 1. duplicates — Report, tag, or drop duplicate observations. you omit a particular group), you don’t have to change anything: the results get automatically updated in LaTeX. If you change something in your do-file (e. In the control group, WeChat was only used for sending follow-up visit reminders. UK Stata Users Group, VII Meeting London, May 2001. How to edit Stata graphs in Microsoft Word, by Stata FAQ. If you save it as *. In particular, Stata 14 includes a new default random-number generator (RNG) called the Mersenne Twister (Matsumoto and Nishimura 1998), a new function that generates random integers, the ability to generate random numbers from an interval, and several new functions that generate random variates from nonuniform distributions. Basic syntax and usage. State Farm helps you protect what matters most with home & car insurance, checking & savings accounts, loans, and more. For example, you might want to convert a continuous reading score that ranges from 0 to 100 into 3 groups (say low, medium and high). You also get FMMs for a minimum of nineteen mixtures and estimators. > You received this message because you are subscribed to the Google Groups "Stata Users Forum" group. 0222888 PONE-D-19-13352 Research Article Medicine and health sciences Women's health Maternal health Antenatal care Medicine and health sciences Women's health Maternal health Pregnancy Medicine and health sciences Women's health Obstetrics and gynecology Pregnancy Earth sciences. Also Check for Jobs with similar Skills and Titles Top Stata Casa Jobs* Free Alerts Shine. Using the collapse command to create aggregate data from individual-level data using frequency weights. Stata offers an extensive variety of excellent factual statistical method in all controls. Also Check for Jobs with similar Skills and Titles Top Stata Llb Jobs* Free Alerts Shine. STATA - Create New Variables. Random numbers in STATA. This video demonstrates how to create a new variable that is calculated from other variables. I got this by tabulating countryX year, but this gives me a clumsy format with the countries in the row and years in columns. Stata Programming Essentials. Why are we messaging this group?. For my advanced research design course this semester I have been providing code snippets in Stata and R. generate totRows = _N bysort rep78: gen repairTot = _N _N creates a running count of the total observations per group Stata has 6 data types, and data can also be. You need to have this value just once for each group, and there are two ways of doing it that always work for groups that could be as small as one observation, to do it for the first or the last observation in a group. e for each respondent you have 10 variables each with friend's ID, 10 variables with friend's variable of interest, etc. sample 100, count. The line begins with the command foreach followed by the name I want to use to represent a group (exactly the same as a macro). Please note that a macro in Stata is not the same as a macro in Microsoft Excel. txt, and then define a working directory for Stata. With by: we often exploit the fact that subscripts are deﬁned within group, not within dataset. I am learning Stata and want to know how to generate random integers (without replacement). Also Check for Jobs with similar Skills and Titles Top Stata Gniit Jobs* Free Alerts Shine. In Stata, gen newvar = 44 * oldvar. I list my top 10 Stata 'gotchas' and suggest ways to combat. Calculate the descriptive statistics of all variables in the data. Stata’s most old version has further broadened the contents of the software. The default is to report the number of observations for each model in the table footer. In the first case, the first (and only. duplicates — Report, tag, or drop duplicate observations. Clustered standard errors are popular and very easy to compute in some popular packages such as Stata, but how to compute them in R? With panel data it's generally wise to cluster on the dimension of the individual effect as both heteroskedasticity and autocorrellation are almost certain to exist in the residuals. The Stata Journal (2002) 2, Number 1, pp. The Bureau of Labor Statistics is the principal fact-finding agency for the Federal Government in the broad field of labor economics and statistics. Here's a look at the global perception data behind our rankings. Overview; Installation; number of observations in group 1 e(mu_1) mean in group 1 e(N_2) number of observations. Scan your data to get a sense for. Here we discuss standard linear SEMs; see [SEM] Builder, generalized for information. polska należy do grupy kilkunastu krajów, w których najwyższej klasy eksperci spotykają się w celu wymiany doświadczeń. Once you have started Stata, you will see a large black window that is surrounded by a number of smaller white windows. We'll use the graph twoway scatter command (we can just type scatter but I like to use the graph twoway syntax to make things more consistent across graph types. In Stata, the. isid x1 x2 x3; The duplicates command can list and flag duplicate observations. Chapter 2: STATA Code. Releases before SAS ® 9. However, we do not want nbc to be paired with itself. The other weighting options are a bit more complicated. On the one hand, the direct effect is the number of patents, tenders or researches submitted jointly. char() ceil() returns the smallest integer that is greater than or equal to the value of the number or numeric variable. Stata will know that it means if foreign == 1 or if foreign ~= 1. The argument of sort() must be a valid call to an egen function, official or otherwise. 12+ ways to name and label variables in Stata. Guide to Creating Histograms in Excel last edited by Ben Geller 1 year, 8 months ago Quick Reference for Creating Histograms in Excel Suppose you want to produce a histogram showing the distribution of student grades on a recent exam. Stata Programming Essentials. If our data is iid and normally distributed, we can use Tukey Test or other test. LR chi2(4) = 18. e for each respondent you have 10 variables each with friend's ID, 10 variables with friend's variable of interest, etc. The smallest and largest observations are 0 and 63. txt, and then define a working directory for Stata. Example in R. * Back to the use of _n and _N As said previously, _n is a running counter within the by group and _N is the total number of observations in your by group. An Introduction to Stata By Mike Anderson Installation and Start Up A 50-user licensed copy of Intercooled Stata 8. The other day I encountered a SAS Knowledge Base article that shows how to count the number of missing and nonmissing values for each variable in a data set. I have a number of variables. Speaking Stata: Distinct observations (help. The Bureau of Labor Statistics is the principal fact-finding agency for the Federal Government in the broad field of labor economics and statistics. Frequency count stata keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Click to view 2019 course schedule and register to attend. A graduate of Lamar University, Critt majored in Finance and received his BBA. Topics Covered in this Section. duplicates examples varlist if in , options. Following is a response from Senior DHS Stata Specialist, Tom Pullum: I will illustrate how to do this in Stata with the IR file from the Ethiopia 2011 survey, ETIR61FL. UK Stata Users Group, VII Meeting London, May 2001. This will create the file called Log1. The most important tool for working with groups is by. Of course, to use the by command we must first sort our data on the by variable. First, the choices seem endless, with dozens of distributions competing for your a. I have a dataset where each row is a firm, year pair with a firmid that is a string. For the latest version, open it from the course disk space. Hello! Fairly new to stata. Create New, or Modify Existing, Variables: Commands generate/replace and egen. The SEM Builder lets you create path diagrams for SEMs, fit those models, and show results on the. LIC" EG: 123456789123!123a 123a 123a 123a 123a 123a 1!abcd!Tufts User!Tufts University!NUMBER. Examples of the types of papers include 1) expository papers that link the use of Stata commands. My comments are basically the same as the other commenter. reg Y1 Y2 X1 X2 X3 Æ obtain the coefficient(C1) and the s. example values containing HIV or HCV to create new specific. Stata’s most old version has further broadened the contents of the software. , you had independence of observations), assumption #6 (i. _N is Stata notation for the total number of observations. Also Check for Jobs with similar Skills and Titles Top Stata Gniit Jobs* Free Alerts Shine. A lot of my colleagues want to learn R but are turned off by the moderately steep learning curve - base R can be kinda terrifying when the extent of your programming experience is writing do-files. ) for all observations. Sol_anova_1 of 2 STATA. Self-reported minutes of moderate-to-vigorous intensity physical. 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These range from simply. astile is faster than Stata official xtile. To make the Oranges group, select rows 5 through 7, and press the Group button again. In the first case, the first (and only. In this example year is the group variable. The word “in” tells Stata it will perform some action on whatever follows the word “in”. What I would like to do is the following: For each Subgroup, calculate its percentage share of the entire group based on the Number of Observations. Stata is considered to be more powerful than SPSS with excellent syntax and programming capabilities, though not necessarily as flexible as SAS and R. We will show a number of examples from a data file which contains a measurement of alcohol use, alcuse, taken at ages 14, 15, and 16 for 82 children (identified by the variable id). Map multiple locations from Excel (xls) spreadsheet data on a custom google map. ” Joan Zhang, Social Media Specialist, Air New Zealand. I frequently run into the trouble where I need to add rows to a previous stata datasheet. These are a convenient way of observing the relationship between two variables, or visualizing OLS regressions. Stata is a suite of applications used for data analysis, data management, and graphics. "meta-regression"--isn't this. Following this entry,[D] data management provides an overview of data management in Stata and of Stata’s data management commands. Trivedi Indiana University. This post demonstrates how to create new variables, recode existing variables and label variables and values of variables. sample command selects random samples of the data set in memory and removes unselected observations from the data set. With by: we often exploit the fact that subscripts are deﬁned within group, not within dataset. This way I can create a new variable: "zones", which is the sum of "tax" payed in an "industry" X in the "year" 200X considering the range of regions defined before. Prior to SAS/STAT 13. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. There are a number of ways to create a loop in Stata. Since keeping only CEOs the dataset went from 74300 to 13678 observations but has remained the same even though I am expecting the number to get smaller. In the following code, the h171 dataset is saved in the 'Stata\data' folder (first create the 'Stata\data' folder if needed):. *!chaid version 2. Frequency Tables The tabulate command. The 3-year progression-free survival was 80% in the combination group and 62% in the ADT-alone group (hazard ratio for clinical or radiologic progression or death from prostate cancer, 0. Colin Cameron and Pravin K. What I'm looking to do is get a number for amount of "1's" I have in each state, relative to the state sample. Sample 24595: Counting the number of observations in a BY-Group Determine how many observations there are in each BY-Group by using BY-Group processing. Why do you ask me for a checking account number when I create a Group? We ask you for a checking account number so you can automatically contribute your monthly euro to the social cause you choose. These days, various new highlights analyses are included in a versatile analysis. asdoc creates excellent tables of summary statistics such as mean, standard deviation, minimum, maximum, etc. I discuss macros and loops, and show how to write your own (simple) programs. Next we generate a new variable called "age" and set it equal to missing (. at least 1 number, 1 uppercase and 1 lowercase letter; not based on your username or email address. Stata/MP - more variables. My comments are basically the same as the other commenter. When _n is combined with by, however, _n is the observation number within by-group, in this case, within oldid. Summary statistics by group - Statalist. you may also like to download Stata 15 Crack. From within Stata, use the commands ssc install tab_chi and ssc install ipf to get the most current versions of these programs. A quick way to create a list of sequential numbers in Word.