I didn't know that -collapse- can be applied to string variables. We will illustrate this using an example showing how you can collapse data across kids to make family level data. It seems that the following works, but would also be a lot more time-consuming for my data. We can list out the data to confirm that it worked correctly. > collapse (sum) _*, by(id) Hello [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Stack Overflow for Teams is a private, secure spot for you and Five time periods by 67 counties give me a total of 335 observations. problematic otherwise). Counts the number of boys and girls in each family by using tabulate to create dummy variables based on sex and then Unlocking the Power of Stata's Macros and Loops. If I use (first), then the first error clears, but (count) still fails. Suppose you wanted a count of the number of boys To concatenate is to join the characters of 2 or more variables from end to end. This works for your data here: reshape long drug , i (id drugid) drop if … > an error message. collapse gpa hour [fw=number], by(year) Calculating the mean would give equal weighting to all counties regardless of size. age is named avgage and we have explicitly told the collapse command that we want it to compute the If I want to keep the collapsed data I save that first and then reopen the original. Phone: 510-665-8274 Hi, in my do-file I always have the statement for opening the original file. I have dataset in stata and I would like to perform clustered bar graph with error bars. x x > > I want to collapse the data so I have a single record: > > individual_id potassium sodium hdl cholesterol > 00001 x x x x > > This is fine with "typical" records, as above. > use orig, clear the purposes of the -collapse- command, which is to make a dataset of variable. As example, suppose we have the variables var1, var2, and var3. > message. Collapse allows you to convert your current data set to a much smaller data set of means, medians, maximums, minimums, count or percentiles (your choice of which percentile). (Shadow Fey Enchantress). Thanks. (which is fine if the string variable is constant within the group and list This is a fast option to Stata's collapse, with several additions. Tagged With: collapse, graph, preserve, Stata. To summary statistics. Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org. Thanks for detailed explanation! If you continue we assume that you consent to receive cookies on all websites from The Analysis Factor. Fortunately Stata gives you a very simple way to weight your data based on frequency. > 00001 72010 . You can call what you want collapsing if you like but it's not among the purposes of the -collapse- command, which is to make a dataset of summary statistics. > post, but I am open to any method: Is there a name for paths that follow gridlines? > 2 A B C explained in the FAQ. reshape long drug , i(id drugid) by Stephen Sweet andKaren Grace-Martin, Copyright © 2008–2020 The Analysis Factor, LLC. [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] The values in _n==1 (line 1… Institute for Digital Research and Education. I want results that I can copy and paste into a Word document. This is due to reducing the number of observations for the variable in the “by” statement to just one observation. RTI International . We use tabulate with the generate option to make the dummy variables. Sexdum2 is the dummy variable for boys. > We will create a dummy variable that is 1 if the kid is a boy (0 if not), and a dummy variable that is 1 if the kid is a girl (and 0 if not). > save temp_name, replace The above collapse command was not very useful, but you can combine it with the Oddly, although simple logic would suggest you should be able to do count of non-missing values [-collapse (count) string_var-], you can't. By starting my code with the preserve command it brings my data set back to its original state after providing me with the results I want. Jeff Meyer is a statistical consultant with The Analysis Factor, a stats mentor for Statistically Speaking membership, and a workshop instructor. > Sent: Thursday, January 09, 2014 12:44 PM constant within num1 : Birth is the order of birth collapse (mean) lfp College Mobil [fw=Pop], by(year) Sometimes you have data files that need to be collapsed to be useful to you. b 2 3 These cookies do not store any personal information. I hate the three horizontal bars on top. Please note that, due to the large number of comments submitted, any questions on problems related to a personal study/project. Hello, I want to generate a line graph to summarise longitudinal data with confidence limits included. The sum of > 2 3 C * http://www.stata.com/support/faqs/resources/statalist-faq/ What is a proper way to support/suspend cat6 cable in a drop ceiling? If I collapse (mean) I get decimals. etc. Sexdum1 is the dummy variable for girls. I’m currently looking at a longitudinal data set filled with economic data on all 67 counties in Alabama. https://bbs.pinggu.org/forum.php?mod...=1#pid58387315, You are not logged in. As was mentioned very recently, you should not send attachments to Statalist. > 2 1 A > 1 1 A > > -----Original Message----- and wt like the command above, and also computes numkids which is the count of the number of kids in each family (obtained by counting the number of observations with valid values of so the independent variable is repeated for multiple households. 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. age and for wt all in the same command. But opting out of some of these cookies may affect your browsing experience. This example shows you how to use the collapse command to generate the standard deviation of your variable of interest and then generate the confidence interval. To learn more, see our tips on writing great answers. * Required fields are marked *, Data Analysis with SPSS and then it creates one record for each family that contains the average age of the kids in the family. What if I want to look at variables that are in percentages, such as percent of college graduates, mobility and labor force participation rate (lfp)? Dear Clyde, Thanks again or the addition useful information. Which stat can I use to retain the 1 and 0 outputs? I attached an excel sheet showing my data How is this site forcing page reloads with JavaScript disabled? birth). This website uses cookies to improve your experience while you navigate through the website. collapse (firstnm) string1 (mean) num2, by(num1) > setup as is and what I need to do. Running collapse command in Stata without losing key variables? What if I wanted to see some trend information, such as the total population and jobs per decade for all of Alabama? Instead, you have to use first, last, firstnm, or lastnm (which is fine if the string variable is constant within the group and problematic otherwise). To We can do that with one extra step. You can call what you want collapsing if you like but it's not among We do not have to type (mean) to specify that we want the mean because the mean is reported by default.. use http://www.stata-press.com/data/r13/college, clear. As was mentioned very Is there a really good reason for every house to must have a drone. Education and Workforce Development Collapse allows you to convert your current data set to a much smaller data set of means, medians, maximums, minimums, count or percentiles (your choice of which percentile). > by(famid) option, Re: st: RE: String Variable in Collapse Command. I have coded yes = 1 and no= 0. I'm trying to collapse only a subset of my data using if, but it seems to be dropping / collapsing much more than I expect.. With every other command with which I have used an if qualifier, the command applies only to the subset of the data that meets the if criteria and leaves the rest of the data alone.. For example, replace does not alter the data for which foreign != 1: Thinking on this some more, my egen count with by operation isn't necessary. From This category only includes cookies that ensures basic functionalities and security features of the website. We can look at the dummy variables. Here we get the average for Converting string variables with numeric values. My boss makes me using cracked software. These cookies will be stored in your browser only with your consent. As a result, the variables that are being collapsed are summarized in some manner. Can a clause be added to a terms of use that forbids use of the service if the terms of use would be illegal in the user's jurisdiction? … > b 2 0 The sum of sexdum2 is the number of boys in the family. It isn't immediately obvious whether logic suggests that (min) and (max) should be applicable to strings--they do have an ordering, but we don't typically think about them that way. Same as above example, but also counts the number of kids within each family calling that Here is a file containing information about the kids in > * You also have the option to opt-out of these cookies. What person/group can be trusted to secure and freely distribute extensive amount of future knowledge in the 1990s? the pathogen load data is not for household level, but represents the pathogen load in waterways for a cluster of households (10-20). > 1 2 B recently, you should not send attachments to Statalist. Re: st: collapsing string variables You can browse but not post. This helped me a lot. Your email address will not be published. Re: st: RE: Command for Exporting graph to MS wrod. It’s as easy as that. Re: st: collapsing string variables. > 1 A B On principle I am ignoring your attachment. Have you ever worked with a data set that had so many observations and/or variables that you couldn’t see the forest for the trees? Weighted Average in Stata's collapse command, Counting occurrences of values of string variable using collapse, Can a monster cast a higher level spell using a lower level spell slot? The sum of the The time frame is in decades, from 1960 to 2000. Department of Statistics Consulting Center, Department of Biomathematics Consulting Clinic. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Preserve > nifty merging. rev 2020.11.2.37934, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, Handling string variables inside collapse command.

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