Stata Count Unique Values String. 1998. It concatenates varlist to pro uce a string variable. J. I

1998. It concatenates varlist to pro uce a string variable. J. Includes instructions on using the unique () function, the egen command, and the count () To do this, we need first to sort the data into groups of distinct observations and then to count those groups. This is my code and output: Basically, I need to count the number of unique/distinct words, with no repetitions, for each observation. Learn how to count unique values in Stata with this step-by-step guide. That would mean using the command egen and the user-written All I need to do now is find a way of creating a numeric variable that provides a count of distinct words in the string 'regimen_drugs_combined'. e. I used the following two lines of code: egen count_obsv = tag (loc_ID year) This adds a counter to my dataset (count_obsv) whi t be combined with by. Thus 1 2 2 3 3 3 is 6 non-missing values. Values of string v riables are unchanged. display string values without compound double quotes insert the list of values in the local macro macname include missing values of varname in calculation separator to serve as punctuation for the > representing the count of the unique groups of make2 in each area, divided > by the count of make2 in each area. In that case you need to first -encode- hospital and then substitute the encoded variable How do I count the number of distinct strings across a set of variables? Starting with Stata 8, the duplicates command provides a way to report on, give examples of, list, browse, tag, or drop duplicate observations. By default, each distinct string value is displayed within compound double quotes, as these re the most general delimiters. Values of numeric variables are converted to string, as is, or are converted using a 2. Collapsing datasets to The egen function count counts non-missing values, regardless of whether those non-missing values are the same or different. Speaking Stata: Distinct observations (help distinct if Hi, I'm a Stata newb and was hoping to get some help. , Dedicated egen functions for the number of distinct numeric and string values across an observation in several variables are included in egenmore from SSC. the number of different or distinct non-missing values, here the number of diagnoses, across a set of string variables. Indeed, as we shall see, such usage is also to be found in official Stata. I have a dataset with approximately 1800 observations and 1050 variables. Essentially my problem looks like the first table and I am trying to collapse it to get an output like the To get a count of 'received' friends, I need to get a count for how many times an ID appears across all columns and rows of the dataset. Thus, in the example just given, 1, 2, 3, and 4 would be reported by many as the unique values of the variable in question, even But now I want the count the unique number of CEO names (CEOname/string variable) based on another variable: differenceshares (the difference between the ceo ownership and the Note added: If hospital is a string variable, -collapse- will object that there is a type mismatch. Each observation in my data represents a respondent. Cox, N. They are rownvals() and rowsvals() In order to get the unique values of a variable (for example how many times an identifier occurs among observations) there are a few different approaches we can try. If you want to I'm using Stata. For this to work, you would have to install -egenmore- (SSC) first. ---This video is based on the Hello fellow Stata users, I am trying to get some summary stats for my data and want to count how many unique samples have the following variable. Here is an example of the data with ID, year, and the job code (i. There is a detailed review of this question in SJ-8-4 dm0042 . This is easy in R, but I'd like to stay with Stata Perhaps the identifier variable is a string — id "numbers" 1A038, 2B217, — and you need numeric identifiers — 1, 2, — because some Stata commands Is there a way to tell Stata to try all values of a particular variable in a foreach statement without specifying them? Options without compound double quotes. pctcount=count of groups of make2 / count of make2 > > So the output table In the following simulated data (full code provided) I am seeking to count the number of unique and distinct words occurring within one string variable, -allcolors-. So also is 1 1 1 1 1 1. I have tried -rowsvals-, but this just codes On the other hand, if you did create the count variable, then collapse (mean) count, by(patid dx) would have precisely the same effect. In order to get the unique values of a variable (for example how many times an identifier occurs among observations) there are a few different approaches we can try. I know that the solutions may be very easy, but I have been struggling with it the In the following simulated data (full code provided) I am seeking to count the number of unique and distinct words occurring within one string variable, -allcolors-. If you know that the string values Another way to do it: gen ZZ = 0 qui forval i = 1 /`=_N' { foreach v of var B-Y { local list `"`list' `"`=`v' [`i']'"'"' local uniq : list uniq list } replace ZZ = `: list sizeof uniq' in `i' local list } The single, double, and . It looks something like this: -- I only see in the "sum variablename" command the min and max > values stata has assigned but I don't see a complete list of > assigned numeric values to string values. Count the number of distinct strings and their occurrence in a variable Asked 8 years, 2 months ago Modified 8 years, 2 months ago Viewed 2k times Hello everyone, I have one question related to counting distinct values by groups. This FAQ is likely only of interest to users of previous Stata Count Distinct Values Asked 10 years, 2 months ago Modified 10 years, 2 months ago Viewed 7k times I have a dataset in Stata and want to count by group (loc_ID) and year. > > i. . Besides the first variable id, which gives an identifier, the other variables (call them A to Z) contain either interesting strings or missing values indicated by So what is the correct syntax if I want the "new_var" to count the number of distinct values of "var_of_interest" in general? And how can I find out the frequency of each specific value of Generating a new variable with the number of distinct values is an alternative to codebook. Most of them are categorical variables with a few categories. Learn how to effectively count distinct string cases by group in Stata, including how to display zeros for missing combinations. This is concise, but not cryptic if you read the documentation for the package mentioned.

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