Stata bysort two variables. Most Stata commands allow the by prefix, which repeats the command for each group of observations for which the values of the variables in varlist are the same. ) The cond-function checks if the first argument is true and returns value if is and . D. In other words, be careful. , replace dynamic_condition(x[_n-1] == x[_n]) strict bysort y: carryforward x if y != . by state: gen lag1 = x[_n-1] if year==year[_n-1]+1. The new. If we sort the data by two variables, for instance, the data are placed in ascending order of Nov 12, 2014 · then, as suggested. Assuming that you want to -merge- your 2 datasets on 1:1 basis, you may want to try: Code: merge 1:1 <var1> <var2> using <yourusingfile>. The examples shown here use Stata’s command tsfill and a user-written command Nov 16, 2022 · Here the variable state takes on two values, 0 and 1. On closer examination, the case is not as special as it looks, but it turns out to offer a key to unlocking more complicated problems. Show us the exact command you have typed in Stata. If you want to drop all duplicate observations but keep the first occurrence, type. ac. This involves two steps. the variables being graphed), and then by the Sep 8, 2014 · My objective is to find the max of a certain variable for each group and then assign generate for every observation in a particular group a new variable that equals the max. a, :::, . When over() is supplied with multiple variable names, each subpopulation is assigned a unique default identifier. uk Deborah Garvey, Ph. l. Stata Journal 7: 117–130. drop if dup>0. By contrast the -egen, rowmin ()- function is applicable only to variables. 1970m3 1311 . Nov 18, 2020 · value [_n-1] refers to the preceding observation in the current sort order. a < . by without the sort option requires that the data be sorted by varlist; see [D] sort. Check out my asdoc program, which sends outputs to MS Word. sort state year. _n basically indexes observations (rows): _n = 1 is the first row, _n = 2 is the second, and so on. statalist@hsphsun2. e. Feb 7, 2023 · Cleaning a Stock Portfolio. dta. Put simply, Calculate the total for each group. 12 1 5005. Hello everybody, I have a hospital list (ik) doing several surgeries (haupt_op). value [_n-1] and l. Most problems involve missing numeric values, so, from now on, examples will be for numeric variables only. bysort x y (z): gen N = _N. It sorts already-sorted datasets instantly, so Stata’s ignorance costs us little. for pid 203 the 13 months in 2001 Sep 29, 2015 · The relevant number is the typical frequency. The second step is to replace the missing values sensibly. To arrange data in a descending order, we need to use the gsort command in Stata. 1 2001 0 5. Be especially careful when selecting observations within groups. First, correlation requires the number of observations (n) to be the same for each subgroup. Your commands here showing line breaks without continuation forward slashes "///" and if this is the exact command you typed Stata will not pick it up as a complete instruction. No need for egen at all (a command that many people who only use Stata occasionally often find bizarre). May 26, 2017 · Did you try. Your central calculation is averaging two previous values. That is because the variable used for the [egen] has missing value. So that means for every observation in the group, the max variable would have the same value. _N is Stata notation for the total number of observations. For each group of caseID that has more than 1 value of Surveyyear, I want to keep observations that have the maximum value of Surveyyear. value will be exactly the same if the data is sorted on the time (or panel/time) variable, and there are no time gaps in the data. Jul 4, 2016 · you may want to try something along the following lines: Code: set obs 3. Nov 16, 2022 · This website uses cookies to provide you with a better user experience. 0000999. However, I do not know if you can use variables (like k in this case) in stata in this way. But how do you do 3-way, 4-way, 5-way of more cross tabulations? Mar 23, 2021 · I used this Stata code but it doesn't work: bysort id (Year): gen max_count=max(count, count[_n-1]) The highest value is only applied to the immediately succeeding year and not to all succeeding years. On the other hand, if you need to order variables rather than cases, there are other packages. > calculations. Below is example of dataset. b < < . Hi! Iam having trouble using the bysort asdoc sum command. g Buyer=1. . , . In turn that could just be Nov 16, 2022 · Other totals, and by extension means, can be calculated using the same general approach. I updated the example to reflect this. For example, if three variables are specified and, in some observations, one of the variables is missing, in those observations newvar will contain the mean of the two variables that do exist. Mar 26, 2020 · Currently, asdoc allows bysort prefix with only one variable. 40 0 1 4082 DK 0. Products. z for numeric variables and "" for string variables. If the by() variable is a string variable, by()=="" is considered to mean missing. Some comments on graphs of percent variables are also included in the last section. When we expand the data, we will inevitably create missing values for other variables. Feb 25, 2023 · So for a given group (let's say ID #1) there could be 10 observations, and I want to make a new variable based on two conditions (e. Code: unique_identifier group value. Last edited by Carlo Lazzaro; 04 Jul 2016, 06:46 . input str7 ym int siccd float amihud. Using "gsort" does. code: la de LABEL 1 "" 2 "" etc la val MYVAR LABEL. j. Apr 4, 2022 · I am looking at a comparison of prisoner data for two different years (2011 and 2015). So if we care about repeating the tabulation of race and smsa variables across the categories of the married variable, we shall write the code as: bys married There is no support for an option by () because there is no need for such an option. If you'd like the total number of family members then the system variable _N can be used. You are confusing & and |, and also two distinct syntaxes for -egen-. How do I sort a numeric column in descending order? For example, I want to sort age from highest to lowest - 49, 47, 32, 21, etc. One of them is an ID and another one is Place. The: Cox, N. Also see the estat vce command in[R] estat vce. (It is not a whole number because we are estimating this value using the probability weights. You could do this recode region 1/4=1 5 6 7 13=2 8/12=3 , gen (zone) bysort year industry zone : egen tax_zones = total (tax) I don't see that -collapse- is the best solution here, given what else you are Stata has two built-in variables called _n and _N. It will, of course, sort the entire dataset, not just the age variable (column). Kind regards, Mar 15, 2018 · How you do that will depend on whether your year and month variables are numeric or string, so, again, without example data, specific advice cannot be given. The default is not to report the statistics for the by()== missing group. summarize, separator(4) Variable Obs Mean Std. 1970m1 1311 . Title. Jan 2, 2024 · We can add more than one line in each of the graphs of a panel graph. The basic syntax for -sort- is: sortvarlist. g. 1970m2 1311 . drop if dup>1. That is, if there were four groups, the graphs would be displayed default colfirst 1 2 1 3 3 4 2 4 rows(#) and cols(#) are alternatives. one time period before as set by tsset or xtset. And now I'm trying to loop over 2 variables at the same time in order to generate a new variable. 0. colfirst specifies that the individual graphs be arrayed down the columns rather than across the rows. Nov 16, 2022 · You can create lag (or lead) variables for different subgroups using the by prefix. com tabulate with the summarize() option produces one- and two-way tables of summary statistics. Nov 16, 2022 · This FAQ focuses on a special case, calculating mean percentages from indicator variables. A float variable (or a double, according to set type) is created if the result is numeric, and a string variable is created if the result is a string. Jun 3, 2020 · I am using Stata version 15 to calculate the number of distinct cases (firm) by a group of two variables (entity and year). Type: bysort year: egen gdppc_mean=mean(gdppc) bysort year: egen gdppc_median=median(gdppc) Let us now generate line graphs for the variables gdppc_mean and gdppc_median for selected countries. Also see [R] tabulate oneway — One-way table of frequencies If we had not specified the variable (or variables) we wanted to summarize, we would have obtained summary statistics on all the variables in the dataset:. Mar 26, 2017 · Your new variable instead would become a growth rate of the log of wage, which is usually not of interest. In panel 1, state 1 first occurs at time 4, and the individual remains in that state. I want to tab it by whether or not they are before or after 2017. Mar 20, 2019 · bysort gen n = _n with if condition 1/2/3/4 is true. It will become apparent that the best solution to getting this is easily adapted to get the case of the minimum seen so far, the record when low values It creates the (row) means of the variables in varlist, ignoring missing values. The bysort command in Stata is used as a prefix before other commands, and it allows you to perform those commands within groups of observations. Best. m. Cheers, Steve -----Original Message----- From: [email protected] [ mailto: [email protected] ]On Behalf Of Harriet Baker Sent: Sunday, 15 April 2007 1:04 p. Code: * Example generated by -dataex-. if it is not. I've tried bysort cik year: gen sub_num = _N if loan_amt != 0 and bysort cik year loan_amt: gen sub_num = _N but neither really does it. So if you wanted the minimum of x+y or z*w, you would have to use -gen-'s -min ()- function. > them before we can create two new variables that are the keys to other. That's not a good idea at all. I have one variable that defines the different subsamples and I would like to use this variable together with the "by" command. On the point, you have incorporated IV_POLICIES twice as instrument. Oct 8, 2015 · bysort id year: egen sum1=total(var1) In my case however, the time interval is determined as an interval between two events. Nov 16, 2022 · Case 4: Dropping duplicates based on all the variables. May 3, 2020 · To install: ssc install dataex. 2973 5. line. clear *. I want to generate a variable that tells me how many ID´s each place has. 785503 12 41 rep78 69 3. , the results of a command like -sort serial > pernum- for a -bysort- that is sorted on a within-household Jun 25, 2015 · In this case you could consider using the intraclass correlation coefficient (ICC), which would be given as "rho" in the model output from running the code below. Dec 7, 2019 · 3. Note also that if by () had been supported, it would surely have been documented too. Design df = 618. I want to understand what the values signify. 1 January 2, 1960. If there are 2 variables, var1 and var2, after sort, Stata will sort the Thus after -input- and -trim()-, Martin's code can be slimmed to > > bys year Prof (Uni) : replace Uni = Uni[_N] if missing(Uni) > > -- without any need for an extra variable. I thought of using the following code: bysort season: egen sumcards1 = max(red_ca Jul 9, 2015 · Code: by famid (age), sort: generate birthorder= _n. 2007a. Mar 7, 2020 · Let’s create a two-way table of race and smsa. In this format, 0 means January 1, 1960. Given that Ludmila has panel data and assuming that it is properly xtset , it would be best to make use of the time-series operators, e. Abraham. Nov 16, 2022 · missing (myvar) catches both numeric missings and string missings. Oct 16, 2017 · I make a lot of graphs comparing two groups (e. I would like to create a bar graph showing for each category both variables together. stack stacks the variables in varlist vertically, resulting in a dataset with variables newvars and N (N v=N n) observations, where N v is the number of variables in varlist and N n is the number in newvars. missing specifies that missing values of the by() variable be treated just like any other value and that statistics should be displayed for them. edu. Subtract each member’s contribution from that total (possibly, the contribution is 0). z are the numeric missing values. Identify the variable of interest and the reference. Code: version 14. bysort id: gen time = cond(_n == 1, arrival, depart) >. Jul 30, 2014 · I have been using STATA not for so long. dumb, but it is also fast. Author. Min Max make 0 price 74 6165. Dear Statalists, I am a beginner in Stata so apologies for this simple question: I have two categorical variables (LifeSat, JobS_overall) both measuring satisfaction from 1-7 with respect to life and job. Try loop if you have many groups: su group forval i=r (min)/r (max) { regress y x1 x2 x3 if group == 'i' } Make sure to replace the single quote mark the left of i with the proper mark, I don't find it in my iphone. egen intersection=group(Buyer Seller) bysort Buyer Seller: count if intersection>=1. You may want to look at the gsort and the gsgroup commands. > > In the same territory, note that -egen, mode()- takes string Sep 5, 2017 · bysort pid (syear): gen months=arbeitslos_vorjahrmonate if syear >2000 & syear <2016. Stata Journal 7: 571–581. >. > > Is there any way to maintain a sort order of PERNUM within > SERIAL, i. replace Seller=3 in 3. Package Installations. +------------+. Remarks are presented under the following headings: One-way tables Two-way tables One-way tables Example 1 We have data on 74 automobiles. nolabel requests that value labels attached to the variables identifying the subpopulations be ignored. Stata has two system variables that always exist as long as data is loaded, _n and _N. 56 1 2048. Options for correlate Options Nov 16, 2022 · would be better. So how can I get the result whereas the missing value replaced by 0 value when using the command Nov 18, 2014 · Salma, You use bys group: to create a new variable or to modify an existing one. The question is that, for every lpermno, I want to generate monthly excess Jan 19, 2018 · I have a number of variables. see this example May 18, 2011 · Summing those 1s and 0s cumulatively gives the desired variable. , replace dynamic_condition(y[_n-1] == y[_n]) strict Yet, this does not work when there are double matches. Apr 19, 2022 · https://asdocx. but since _n and _N usually refer to the within-group position / number of observations (which is why the workaround works), it seems odd that the if condition seemingly ignores the group variables. If you set up your data as panel data using tsset or xtset then the calculation is quite possibly as little as one line using time series operators. because . 40 1 5 4749 DK 0. ID Year count max_count. I need to count how many firms are exporting for each destination and for each year. My data, as shown in the attached dta file looks like lpermno trt1m (which is the monthly stock returns) year mydatemonthly rf. If you want to drop all duplicate observations, including the first occurrence, type. replace myvar = myvar[_n+1] if myvar >= . > . In panel 2, the individual is in state 1 only from time 3 to time 5. If you situation is still different and you need more help, please explain in more detail. I have a special variable called event, which takes value of 1 if the event has occurred on special date and missing otherwise. Now I want create a new variable (n_patients1), which counts the number of Haupt_op by ik, but only if all Haupt_op contain 1 or 2 or 3 or 4. harvard. Thus, we recommend to use bysort instead. My regressions, together with my "post estimation" commands, look like probit yes lnbid lninc if bid<=income wtpcikr lnbid lninc if bid<=income, mym (mean1 Noninteger values, negative values, and labels that are not valid Stata names are substituted with a default identifier. Stata tip 51: Events in intervals. 496 3291 15906 mpg 74 21. We can. Jun 30, 2021 · Firstly, thank you for a very versatile and easy to use tool for exporting data fra stata to other platforms! This is great! I want to show selected summary statistics for several variables, sorted by schools First I assigned labels to all schools for easier idenfitication. Notice in the output of the svy: tab command that there are 789. I have an id variable for firms (IMP), the destination of their exports (countryX), and the year (year). I figured it has something to do with string variables, but I could not find a solution. In your example data it is less than 10. If varlist is not specified, the matrix is displayed for all variables in the dataset. The standard -graph bar- output groups all bars for men together, and all bars for women together. A cookie is a small piece of data our website stores on a site visitor's hard drive and accesses each time you visit so we can improve your access to our site, better understand how you use our site, and serve you content that may be of interest to you. 1. In the example above, n1=24, n2=50, and n3=126. If varlist is only one variable, then Stata will sort the observations in ascending order based on that variable. Re: st: Summing by group of variables. gsort price. stack creates the new variable stack identifying the groups. Type: Nov 23, 2017 · I have tried to generate a new variable displaying the change from 1995-2015 in (log) hours worked (HEMPE) using the following command: gen diffHEMPE = ln_HEMPE - ln_HEMPE [_n-20] which indeed displays the difference in changes between 1995 and 2015, but also displays values for 1995, even when I exclude intermediate years. 07 Apr 2020, 07:10. If you need to use two variables with bysort, then there is a workaround. values of varlist. To remedy this problem, gsort’s generate() option will create a new grouping variable that is in ascending order (thus satisfying Stata’s narrow definition) and that is, in terms of the groups it defines, identical to that of the true sort Apr 7, 2020 · Bar Graph, two variables. 0001162. Picking up where case 3 left off, this is no different from case 2. 0001302. In the latter case, if the string variable contains values Nov 20, 2016 · replace text=substr(alltext, "`i'", "", k-1) i. _n is 1 in the first observation, 2 in the second, 3 in the third, and so on. Speaking Stata: Making it count. Once calculated you can collapse and merge back in. The bysort command is a perfect tool for this. We would like to show you a description here but the site won’t allow us. SE Nick n. calculate how often "AD" occurs in text and then replace text with a substring were the first k-1 instances of "AD" are removed and then run the loop for all individual strings. When combined with the by prefix, it can produce n-way tables as well. bysort x y (z): gen newvar = sum (z) if n <= N/2. We need to be able to deal with both patterns, recognizing that the state concerned may be absorbing or just temporary. Aug 14, 2022 · Sunday Stata Tips | Using By Sort Commands:In this video I introduce bysort commands and how to generate variables in stata using bysort commands. Code: tabulate agegr died ,row. An elapsed date is the number of days from January 1, 1960. For example, it can be used to calculate the mean of a variable within categories of another variable. 2010. Bysort and gen/egen . You can use the by function to create variables within groups, but in order to use by you must sort before hand. 30 1 4 4816 DE 0. A more informative way to give descriptions of categorical variables is to -tab- them (and not using factor-variable notation). I have data for many transactions that is identified with a receiptID. I would like to convert these two lines from Stata into R code: I'm wondering how I can change my code in R to get H=3 instead of 6 in hid 302. 552 cases are included in the subpopulation. I go over Jan 9, 2017 · Let's peel off first. bysort pid: egen months1=total(months),m. If no type is specified, the new variable type is determined by the type of result returned by =exp. Code: gsort - age. For instance, for entity 1, year 2010 I would have 2 (The aim is to avoid double counting!). If that is not the case, then it will take minimum n (in Stata) and do correlation which is not good. , male/female) across a number of variables. 6 cases coded 1. However, the catch here is that, both sort and gsort command will arrange the data in an ascending order. Let us create two new variables, gdppc_mean and gdppc_median. stata will tell me that there are too many variables specified. 20 1 6 4099 GB end bysort group (ID) : gen which = _n su which, meanonly gen wanted = . but since _n and _N usually refer to the within-group position / number of observations (which is why the workaround works), it seems odd that the if condition seemingly ignores the group Apr 20, 2020 · I want to display summary statistics for hospital ownership status (for profit, not for profit, and government owned). Nov 16, 2022 · The maximum value of a variable seen so far in a sequence is the “record” to date, that is, at least when high values are hard to achieve (think of field events such as jumping or throwing). It means, I want to generate this following result: Remarks and examples stata. Missing is defined as . g Seller=_n+1 in 1/2. 1 2000 5 5. > observations are added at the end of the dataset, so we need to sort. There is nothing wrong with sorting on categorical variables by themselves— sort patid and sort group —just do not assume that the order within the grouping variable is unique. > Each distinct value of the identifier now occurs precisely twice. Stata Journal 7: 440–443. 257 2949. Code: bysort id (number): replace number=number[_N] That would sort the highest value observed in each block (which could be missing) to the end of each block and use that to overwrite all values in the same block, regardless of whether values were missing. Duplicates on two or more variables can be sought directly as observations with the same cross-combinations of values. ) In the output of the svy: mean command, we also see that 789. Before we start, we need to install the following packages in order to replicate visuals effectively as seen in images below for each section and category: I think the xfill command is what you are looking for. . If needed, calculate the mean as the total divided by the number of values. value means the value of the first lag, i. _N denotes the total number of rows. bysort combined with gen/egen is probably one of the most useful command combinations when cleaning and creating outcomes. 42,43,39 etc. So I use: bysort year: asdoc tab own, replace. Stata 5: Creating date variables. If you have four variables, agegr, died, alive and total, you might be happy with. 30 0 3 5788 DE 0. Using the prefix of sort command in Stata can only arrange the observations in descending order. The prefix command bysort does the sorting required and ensures that this is all done separately within the groups defined by group_id. : Oct 31, 2013 · Even if egen were not available, or did not work like this, this kind of one-liner is possible in Stata, and will be more efficient than calling egen: bysort group (flag) : gen grpflag = flag[_N] However, that would be thrown by missings on flag, so you would need to work around that. To install xfill, copy-paste the following into Stata and follow instructions: bysort group: egen new_value=max(cond(!missing(value), value, . I got this by tabulating countryX year, but this gives me a clumsy format with the countries in the row and Oct 9, 2017 · 09 Oct 2017, 14:27. If there is only 1 value of Surveyyear in a group, I'll keep all of the observations in that group. dev. But if you had a Stata internal format monthly variable for the year and month of birth, then you would just -collapse- with that one variable in the -by()- option. ik haupt_op n_patients1. J. Alan Riley, StataCorp. You can record dates anyway you want, but there is only one technique that Stata understands, called an elapsed date. Indicator variables and percentages The by option for collapse can take more than one variable so all you need to do is: collapse(sum) amount, by (area candid) to get what you are looking for. Let’s see how _n and _N work. Jul 19, 2021 · The -gen- function -min ()- is more flexible in that it can accommodate any expressions as its arguments. var1 will be the identifier (prisonerID), var2 contains information whether pre-trial detention was ordered or not, var3 is year and var4 is the type of crime committed. 2007c. "bysort" command will sort your data, and "egen Mar 23, 2016 · clear input tax group ID turnover str2 c 0. set more off. Thank you! Sorting data in descending order. Feb 28, 2021 · Look at tabplot from the Stata Journal that has a more bysort Q2061A Q1002: gen freq = _N if Q1002 == 2 by Q2061A (Q1002) : replace freq = -freq[_N] egen group Sep 2, 2014 · Sarah is spot on here: in Stata [NB; not STATA] a loop over observations is rarely needed and indeed the tool of last resort. 2007b. I have tried this: egen Counter = count(ID), by (place) But I get a type mismatch. That will give you the N and % in each level of the category variable--which is a Jan 23, 2018 · As you di not give us enough details, it's difficult (for me, at any rate) to reply positively. The bysort prefix can be used to repeat the two-way tabulations across groups of another variable. Nov 19, 2022 · 0. To install: ssc install dataex. Quick start Nov 16, 2022 · Answer: 1. Aug 15, 2014 · count total observations per variable group. Using bysort with two-way tables. I want to see the totalsum of the receipt, and therefor want to collapse following: collapse (sum) transactions, by (receipt_id) Dec 16, 2018 · The -sort- command put the observations in ascending order based on a specific variable or a set of variables. The new variable months1 should show this result only once (not for every survey year) so that I can sum the results. will do the trick. However, when I'm browsing the results, the variable shows e. Example 3: Sorting on multiple variables Data can be sorted by more than one variable, and in such cases, the sort order is lexicographic. by state: gen lag1 = x[_n-1] If there are gaps in your records and you only want to lag successive years, you can specify. Code: generate newvar = alive/total. Convert both the variables to a single with using the group function of egen, and then use the new variable with asdoc. Using the nlsw88 dataset, let’s look at how to Mar 29, 2021 · This is a very helpful video to create a new variable by using "bysort" and "egen" command together in Stata. At worst you need to expand only the variables for which you want the mean and SD. _n is Stata notation for the current observation number. First of all, we need to expand the data set so the time variable is in the right form. , does weight exceed > 160 lbs and does height exceed 65 inches, if so new variable=1 for a given ID; so even if one observation of ID #1 includes values 150 lbs and 60 inches but another observation includes Apr 28, 2016 · bysort x: carryforward y if x != . Aug 1, 2021 · Generate a variable for the total number of cards (red+yellow) given to each player and each season in the dataset. I've left my failed count variables in the examples for reference. Dec 14, 2021 · Group_by, conditional sum and replace the variables in R. You already know that the mean is the proportion of 1 values for that level, and the standard deviation is sqrt ( (mean* (1-mean)). FWIW, a Stata one-liner is bysort sj hid : egen H = total (cond (f == 1 & (d == 1 | d == 2), d, 0)) where cond () is equivalent to ifelse (). pwcorr displays all the pairwise correlation coefficients between the variables in varlist or, if varlist is not specified, all the variables in the dataset. My problem is that my regressions contain several command. Of course, it can be programmed directly, but that's a waste of time if you have the memory to get Stata to do the work. To illustrate, let’s use stocks. > > However, there is no check here for different non-missing values within groups of -year Prof-. com. > I have data with a household identifier (serial) and a person > locator within each household (pernum). If all How can you get 3-way, 4-way, 5-way or more cross tabulation in Stata? | Stata FAQ The tabulate command is great for 2-way cross tabulations. To note: If sub_num = 0 then loan_num != 0, and vice versa. Other observations will contain the mean of all three variables. For example, . When I use the bysort prefix with just one variable and generate the mean of another variable, I get one set of values e. 9899323 1 5 Aug 22, 2018 · It can be shortened to a single command - the bysort command will perform any necessary sorting, and enclosing year in parentheses causes bysort to sort by company and year, but ignore year in constructing the by-groups. The panel structure has been specified with xtset. 405797 . When I use bysort with two variables and generate a similar mean, I get a different value e. To fix ideas, we will work with a panel dataset, which may be downloaded from the Stata website: This dataset includes economic data on 10 anonymous companies for 20 years, 1935–54. My data consists of nine cross sectional units (men born 1990-99) and i want to show descriptive. 20 0 2 5189 GB 0. UPDATE: the solution proposed by Nick does not work for every example. However, the issue is that it only displays the value of asdoc of all years summed, not before/after 2017. cox@durham. Nov 3, 2019 · The result I got containing the missing value. For more flexibility, consider using asdocx which can send Stata outputs to MS Word, Excel, LaTeX, or HTML. 49,48,51 etc. So, correlation is obtained using only 24 observations which you may not want. There are 5 to 10 events for each company. Stata complains because it does not understand descending sorts (gsort is an ado-file). If myvar is numeric, you could write. 2 likes. I am hoping to find a simple way to make bar graphs that group bars first by the target variable (i. Jun 24, 2015 · There is a relatively simple direct workaround here, bysort x y (z): gen n = _n. Speaking Stata: Counting groups, especially panels. Oct 12, 2017 · I want to collapse two variables, but I still want to see the other variables. However, I would like to get the result that the missing values replace by zero value. < . dabkzeaslwfikaoihsbt