Gen count stata

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August undefined, 2024

Web3. A convenient alternative is provided by the "unique" package. Here's a quick example: * Install the unique package ssc inst unique * Load toy dataset sysuse auto, clear * Get a quick report of unique (and total) values for a variable unique mpg * The result will be available as r (unique) return list. Share. Webgenerate for creating new variables. It has a minimum abbreviation of g. replace for replacing the values of an existing variable. It may not be abbreviated because it alters …

Stata FAQ: Creating group identifiers

WebJul 11, 2024 · 2. Uses egen count() with by, to create two new variables recording the raw number of employed / unemployed people in the region. 3. Creates a fifth new variable, … WebMay 3, 2024 · Feed to egen, total () a true-or-false expression and the result will be the count of observations for which the expression is true (1); arguments that are false (0) are ignored in the sense that they make no difference to the sum. bysort companyid year : egen wanted1 = total (loan_amt > 0) bysort companyid year : egen wanted2 = total (loan_amt ... countersignature insurance policy law

Generate a variable that counts a group of obs. : r/stata - reddit

WebTo do this, you will need to set the seed. The seed is the number with which Stata (or any other program) starts its algorithm to generate the pseudo-random numbers. If you do … WebOct 11, 2024 · I am trying to create a new variable that counts the number of temperature variables whose value falls within a certain range of the temperature. For example, my data looks like this - Data sample. I would like to create a new variable that counts the number of days where the temperature was within 30°C - 31.9°C. WebSimple random sample in Stata. In this example, we are taking a simple random sampling of schools. After loading the data set into Stata, we will use the count command to see … countersignature for uk passport

Stata FAQ: Identifying and dropping duplicate observations

WebNov 16, 2024 · This command puts the observations in the order of oldid . . by oldid: gen newid = 1 if _n == 1 This command creates a new variable newid that is 1 for the first … Webby metarea: count if sex==1 & nativity==0 However, I can't figure out how to store this as a value for each observation in the metarea. Any suggestions? For example, I would like to have the same value of foreign born males in metro area for … counter signature in hindiWebNov 16, 2024 · In particular, egen, total () by () is natural for producing totals, including counts, separately for groups defined by one or more variables specified as arguments to … countersignature for passport renewal

"WebNov 16, 2024 · Stata Journal readers can find a self-contained tutorial on by (Cox 2002). We also need an understanding that true and false conditions evaluate numerically to 1 and … " - Gen count stata

Gen count stata

How to count number of observations per id - Statalist

WebNov 19, 2013 · (1) -egen-'s -count ()- function just counts how often -- in your example -- the result of evaluating timedispatch<= timecreate [_n] & timedispatch +53<= timecreate [_n] … WebWhen we attempt to re-generate age2, Stata refuses, telling us that age2 is already deﬁned. We could drop age2 and then re-generate it, or we could use the replace command:. replace age2=age^2 (204 real changes made) When we use replace, we are informed of the number of actual changes made to the dataset.

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WebMay 27, 2024 · Skip to the content following this video. If a gen command has an if condition, the resulting variable will (and must) still exist for all observations. However it will be assigned a missing value for observations where the if condition is not true. If a replace command has an if condition, observations where the if condition is not true will be left … WebIn Stata you can create new variables with generate and you can modify the values of an existing variable with replace and with recode. Computing new variables using generate …

WebMar 20, 2024 · egen n_patients1 = count (haupt_op==1 haupt_op==2 haupt_op==3 haupt_op==4) , by (ik) I am not sure what your code is doing. However, in the future, I would always put brackets around the conditions so that Stata knows (and future you) how to evaluate the expression. Code: WebAug 31, 2013 · 1 Answer. Sorted by: 3. You can easily cut out the loop over observations. In addition, egen is only to be used for convenience, never speed. gen _count = 0 quietly forval j = 1/6 { replace _count = _count + (move`j' == playerlist) } or. gen _count = move1 == playerlist quietly forval j = 2/6 { replace _count = _count + (move`j' == playerlist) }

WebNov 16, 2024 · Starting with Stata 8, the duplicates command provides a way to report on, give examples of, list, browse, tag, or drop duplicate observations. This FAQ is likely only of interest to users of previous versions of Stata. ... gen dup = cond(_N==1,0,_n) Note the capitalization of _N and _n. (Stata interprets _N to mean the total number of ... WebNov 16, 2024 · In Stata, the rule is that false logical expressions have value 0 and true logical expressions have value 1. Thus logical expressions may be used to generate indicator variables (also often called binary, dichotomous, dummy, logical, or Boolean, depending on tribal jargon), which have values 0 or 1. The command . generate himpg = …

WebApr 11, 2016 · for example before using this command: (by Year: count if Temperature>0) Stata requires me to use "sort Year". This command arranges my Year data in ascending order. I do not want this change in my data actually. Therefore my questions is whether there is another way to do it ?

Web1 The function wordcount () in Stata makes the older add-on nwords () redundant. Note egenmore is downloaded using ssc inst egenmore. – Nick Cox Aug 5, 2015 at 18:06 1 The help for egenmore does point to wordcount (). N.B. nwords () (written for Stata 6) is very slow. – Nick Cox Aug 5, 2015 at 18:14 countersign brieflyWebFeb 7, 2024 · gen obsnum = _n gen totnum = _N And here's the result. _n and _N can also be used within subgroups. To generate counters like the above for each stockid, do this: … countersign briefly crosswordWebAug 5, 2016 · Assuming your variable clinicdate is a date variable: Create a variable containing the year, and include this in your bysort statement: Code: generate year=year (clinicdate) bysort id year (clinicdate) : generate j2=_n bysort id year (clinicdate) : generate N2=_N. If it is not, convert clinicdate to a date variable beforehand: brennan wayne pa brennan weight gain season 12Webcount counts the number of observations that satisfy the speciﬁed conditions. If no conditions are speciﬁed, count displays the number of observations in the data. Quick … countersign briefly crossword clueWebNov 16, 2024 · gen seq = int ( (_n-1)/2) +1. Again, it is valuable to experiment with using _n instead of _n-1 and also eliminating the + 1 at the end. You can also multiply the right … countersign definition insuranceWebCount unique values in Stata. codebook is a great command in Stata. It describes data contents but also simply identifies unique values. Number of unique values of mpg is 21. … countersign column