Count string stata

Author: opvo

August undefined, 2024

WebOct 12, 2015 · ssc inst distinct. will install a function that is very close to what the mentioned SQL statement does. In the case of a dichotomous variable and 20 countries this statement will give the distinct number of value combinations of countries and the dichotomous variable. distinct Countries dichVar if dichVar == 1. Share. WebCount by groups and collapse. I have a dataset in Stata and want to count by group ( loc_ID) and year. I used the following two lines of code: egen count_obsv = tag (loc_ID year) This adds a counter to my dataset ( count_obsv) which is 1 (and 0 for every element that has the same combination of loc_ID and year) for every new combination.

Stata Guide: String Variables

WebMar 20, 2024 · For example, some institutes code missing values with negatives, like -999. Clearly, you need to recode them beforehand, for example: Code: replace VAR = .a if VAR == -999 //Not at home replace VAR = .b if VAR == -9999 //Refusal. So Stata knows what defines a missing. WebSep 6, 2024 · 06 Sep 2024, 23:29. You would just use the or/and operators, depending on whether you want any of those multiple strings to figure, or all of them to figure in the string variable: Code: replace var = x if ustrpos (name, "xxxxxxxxxxxxxx")>0 ustrpos (name, "yyyyyyyyyyyyyy")>0 ustrpos (name, "zzzzzzzzzzz")>0 OR replace var = x if ustrpos ... shereane houston

Stata FAQ: Number of distinct observations

Webcount from left to right or from right to left, but note that Stata, by default, works on stringsfromlefttoright. Stata has a function, subinstr(), that looks for occurrences of … Web) escaped decimal or hex digit strings of up to 200 bytes of s uchar(n) the Unicode character corresponding to Unicode code point nor an empty string if nis beyond the … sprite white backround

How to count the number of missing values? - Statalist

encode — Encode string into numeric and vice versa - Stata

WebAug 7, 2024 · I have string variable curcd. there are two things in it USD or CAD, How can I calculate No of CAD and how can I delete those. codes which I normally use for a … Webcount from left to right or from right to left, but note that Stata, by default, works on stringsfromlefttoright. Stata has a function, subinstr(), that looks for occurrences of substrings within strings and replaces them with a speciﬁed substring (often just an empty string, ""). This function gives us a solution. Consider the calculation shereane houston renoWebOct 14, 2016 · Here we introduce another command -local-, which is utilized a lot with commands like foreach to deal with repetitive tasks that are more complex. The -local- command is a way of defining macro in Stata. A Stata macro can contain multiple elements; it has a name and contents. Consider the following two examples: shereane tourigny

"Title. Counting distinct strings across a set of variables. Author. Nicholas J. Cox, Durham University, UK. 1. The problem. Each observation in my data represents a respondent. Besides the first variable id, which gives an identifier, the other variables (call them A to Z) contain either interesting strings or missing … See more Each observation in my data represents a respondent. Besides the first variable id, which gives an identifier, the other variables (call them … See more The problem of counting distinct values within variables has often been addressed; see, in particular, the FAQ: How do I compute the number of distinct observations? This … See more The first step is clearly to find out if a command or a function or an egen function has been written to do precisely this. search and findit … See more In a way, this solution is quite drastic: we restructure the whole dataset twice for the sake of one new variable. This raises the question of whether it can be done in place, and indeed it can. If you were doing this by hand for a … See more " - Count string stata

Count string stata

stata - Generate variable containing number of characters …

WebNov 17, 2024 · Dear Stata users, I have a panel data set with 14 string variables each of which indicates whether this type of service is provided (one variable per. ... I would like to create a count variable "total" indicating the number of services provided for each observations. This variable would most likely count the number of "NP"s in all 14 … WebSep 26, 2024 · To convert these string values into their numeric counterparts, use the real function. For example, in the artificial dataset below, the variable siblings is a string …

Did you know?

WebThe code below creates a variable called nmis that gives the number of missing values for each observation. The function rmiss2() used here is an extension to the egen function rmiss(). It counts the number of missing values in the varlist. rmiss2() accepts both string and numeric variables. (Stata’s rmiss() only accepts WebAs an example, the (German) word für is a string of length three in Stata 13, but the string length is four in Stata 14. This also influences the results of functions such as strlen() . As strlen() refers to the memory used (and not the number of characters as they appear on the screen), the result of strlen(für) will also be 4 in Stata 14 in ...

WebFirst of all, we extract all the digits for year. We use the "$" operator to indicate that the search is from the end of the string. We then turn the string variable into a numeric variable using Stata’s function "real". The next action involves … WebDec 28, 2016 · try this: Code: gen count=wordcount (allcolors) the above works for your examples; however, if you have, e.g., "red red" and you want that to be 1, then the above will not work.

WebFirst of all, we extract all the digits for year. We use the "$" operator to indicate that the search is from the end of the string. We then turn the string variable into a numeric … WebAug 17, 2024 · You then tried to replace it with string values. That's a type mismatch and Stata bailed out. Alternatively, if age is really a string variable, then comparing it with numeric values such as 18 is also a type mismatch. The rest of your syntax would have failed any way. The logical operator (or) can be used to separate input conditions. It can ...

Web) escaped decimal or hex digit strings of up to 200 bytes of s uchar(n) the Unicode character corresponding to Unicode code point nor an empty string if nis beyond the Unicode code-point range udstrlen(s) the number of display columns needed to display the Unicode string sin the Stata Results window udsubstr(s,n 1,n

WebApr 26, 2024 · egen watch_count=noccur (column_name), string ("watch") output: column_name apple_count penny_count watch_count. 1.) apple, penny, watch 1 1 1. … she really needed our help but it was to lateWebMar 25, 2024 · Going beyond Chris' helpful advice, let me flag that you don't need a loop with tostring. You can feed it a varlist. That was one of the reasons for writing it in the first place. Also, if you want replace, not only are you not allowed to specify a new name, you shouldn't want to do that. replace means change the contents but keep the name. 1 like. shereana\u0027s perfect puppiesWebJan 18, 2024 · In Stata, you can use the contract command to calculate frequency for variables and save your results into a new data set. ... (count) nomiss . list. This code takes data from the auto data set and makes a new data set containing frequency information on the foreign and rep78 variables in a new variable, count, as follows: sprite with gingerWebMar 17, 2024 · This tells Stata to find the string def, and if it exists return a 1, or 0 otherwise. ... For each row, the filled columns should equal exactly the number shown in the count variable. sherea rachal dentistWebencode is most useful in making string variables accessible to Stata’s statistical routines, most of which can work only with numeric variables. encode is also useful in reducing the size of a dataset. If you are not familiar with value labels, read [U] 12.6.3 Value labels. The maximum number of associations within each value label is 65,536. sherea mckenzie harris countyWebThe function wordcount () in Stata makes the older add-on nwords () redundant. Note egenmore is downloaded using ssc inst egenmore. The help for egenmore does point to … shere apartmentsWebTo use the tool, enter your text that you would like calculated for character length and then press “Calculate!“. The number of characters in your string of text or letters will show up below the “Calculate“ button. We also have other writing tools for calculating your word count and converting a string of text to uppercase, lowercase ... sprite with lemon