Collapse format stata. com collapse takes the dataset in memory and creates a new dataset containing summary statistics of the original data. Jul 7, 2021 · I am trying to collapse all variables in my dataset, which is as follows. 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). com eaningful variable labels to the variables in this new dataset. You can transition seamlessly across entries using the links within each entry. stata. Description collapse converts the dataset in memory into a dataset of means, sums, medians, etc. date number_of_patients health_center vaccinations 6/25/21 1 healthcentername 1 6/18/21 2 The collapse command in Stata is used to aggregate a dataset by collapsing it based on some summary statistics of a variable like mean, sum, median, percentile, standard error, etc. Prev by Date: st: Econometrically sound to use Mills ratio in a OLS estimation after mprobit? Next by Date: Re: st: level and distribution plot side by side Previous by thread: st: Econometrically sound to use Mills ratio in a OLS estimation after mprobit? Next by thread: Re: st: keeping variable labels after -collapse- Index (es): Date Thread Jan 1, 2017 · Put that line into your code just before the -collapse- command. clist must refer to numeric variables exclusively. Stata’s documentation consists of over 19,000 pages detailing each feature in Stata including the methods and formulas and fully worked examples. -collapse- cannot calculate a statistic like mean or sd of a string variable. collapse adds meaningful variable labels to the variables in this new dataset. As reported, it has its own idea of suitable The collapse command in Stata is used to aggregate a dataset by collapsing it based on some summary statistics of a variable. In this video, we look at how to use the collapse command to create a new dataset . readthedocs. io Dec 8, 2020 · Collapse command - data precision 08 Dec 2020, 16:43 Hello, I am working with a dataset that contains dollar amounts that range from $0 to several million. After the command we have (mean), which tells Stata that we want to save the means, and we do it for the variable wdi_empagr (the percentage of the population employed in agriculture). But if there are exceptions, Stata will tell you that the "assertion is false" and give you a count of the number of exceptions, and then halt without doing the potentially erroneous collapse. Because the syntax diagram for collapse makes using it appear more c Remarks are presented under the following headings: Introductory examples Variablewise or casewise deletion Weights A final example Sometimes you have data files that need to be collapsed to be useful to you. Then we have the important command collapse. Welcome to my classroom! This video is part of my Stata series. My question is whether the Get to know Stata’s collapse command–it’s your new friend. Remarks and examples stata. Because the syntax diagram for collapse makes using it appear more complicated than it is, collapse is best explained with examples. Nov 16, 2022 · Question I frequently use collapse on my datasets and find it frustrating that I lose all my variable labels as they are replaced by something like (mean) varname. This is much liking creating statistics for groups of cases, but by collapsing your data a new data set is created that contains these statistics and can be put to further use. 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). Jul 25, 2022 · Collapse Collapsing your data means to combine several cases into single lines. A series where I help you learn how to use Stata. Here is a simple example where string1 is constant within num1 : input str1 string1 num1 num2 a 1 5 a 1 3 a 1 9 b 2 0 b 2 4 b 2 3 c 3 1 c 3 9 end list collapse Jul 25, 2022 · Collapse Collapsing your data means to combine several cases into single lines. And, Quick starts help new users get started and remind experienced users of common options. If the y2's are constant within y1's, then Stata will move along and do the -collapse-. When importing the dataset, Stata properly chooses the right variable type to preserve precision, so I have a mix of float, long, and double. For example, you might have student data but you really want classroom data, or you might have weekly data but you want monthly data, etc. Description of basic syntax Wide and long data forms Avoiding and correcting mistakes reshape long and reshape wide without arguments Missing variables Advanced issues with basic syntax: i() Advanced issues with basic syntax: j() Advanced issues with basic syntax: xij Advanced issues with basic syntax: String identifiers for j() Advanced issues with basic syntax: Second-level nesting Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Here is a file containing information about the kids in three See full list on gtools. Every installation of Stata includes all the documentation in PDF format. Is it possible to save the old variable labels so that they can be attached to the new variables? Answer collapse replaces the dataset in memory with a new dataset of group statistics. We will illustrate this using an example showing how you can collapse data across kids to make family level data. fek8y 38m zrfo 1f3bgi qyb boq dzge qyg iey fth8