Count variable stata. How to count number observations with the same value in a row for a variable in STATA

Discussion in 'account' started by Faukora , Wednesday, February 23, 2022 1:18:39 PM.

  1. Durn

    Durn

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    Sign up using Facebook. Yes, I actually forgot about your answer and tried to find out myself by trial and error but it's certainly not a result I would use in my code! Find centralized, trusted content and collaborate around the technologies you use most. Rewriting Bash scripts in Go using black box testing. Collectives on Stack Overflow. Handle: RePEc:boc:bocode:s Note: This module should be installed from within Stata by typing "ssc install countmatch". I feel like this is very simple.
    Counting from _n to _N - Count variable stata. Subscribe to RSS
     
  2. Kazilabar

    Kazilabar

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    count counts the number of observations that satisfy the specified conditions. If no conditions are specified, count displays the number of observations in the.Nick Cox Nick Cox
     
  3. Arataxe

    Arataxe

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    Let us first look at your code and explain, at least in part, why you got your results. (1) -egen-'s -count()- function just counts how.If that's not the answer, you might find that a specific example with fake data and what you want is more likely to get a solution.Forum Count variable stata
     
  4. Moogugor

    Moogugor

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    Say my dataset includes 10 observations and 10 variables, var var Entries can take values 0, 1, or 2 (I use Stata/SE 11). I would like.Example: Lets look at the following example, where we have data on families that went to a park where they could do fishing if they wanted but we do not have data on whether a family fished or not.
     
  5. Faeshura

    Faeshura

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    I have an id variable for firms (IMP), the destination of their exports (countryX), and the year (year). I need to count how many firms are.Yes No.
     
  6. Faugor

    Faugor

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    filmha2.online › stata › seminars › notes › counting-from-_n-to-_n.New posts.
     
  7. Vushicage

    Vushicage

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    _n is Stata notation for the current observation number. Counting with by to use the by command we must first sort our data on the by variable.Comment Post Cancel.
     
  8. Meztilrajas

    Meztilrajas

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    count. Because you have no observations in memory, Stata returns the number 0. Typing dummy) variable that takes just two values in the auto dataset.We are interested in predicting the factors that affect the number of fish caught but also in predicting the number of excess zeros since our data has many of them of
     
  9. Mucage

    Mucage

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    useful are the Stata commands by: and egen and indicator variables The new variable, tag, will be 1 for the first observation in each panel, for which.But that code is equivalent to what I have already posted as an answer.
     
  10. Felkree

    Felkree

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    Announcement forum? Initial data checking or cleaning may include counting how many of the possible categories in a variable are represented in the data, or seeing how spiky.It also allows you to accept potential citations to this item that we are uncertain about.
    Count variable stata. Stata: Data Analysis and Statistical Software
     
  11. Mishakar

    Mishakar

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    (In an updated Stata 8, use levels instead.) Frequently, var1 and var2 are both string, so let us focus on that situation.. levelsof var1, local(levels). puts.Connect and share knowledge within a single location that is structured and easy to search.
     
  12. Mut

    Mut

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    I find your code hard to follow in detail (x is a value of ID which is given but also a variable to be produced???) but.Tags: None.
     
  13. Kashakar

    Kashakar

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    Stata solution: clear input foo 0 1 2 3 0 1 2 0 1 end generate wanted = sum(foo == 0) list, separator(0) ++ | foo wanted.Add a comment.
     
  14. Fenris

    Fenris

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    which allowed me to generate counts but the new variable only assigns the counts to those observations that returned true in the count. http://stataproject.Registered: Nicholas Cox.
     
  15. Faujinn

    Faujinn

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    Juan, you can do this in three lines, if you don't want to keep the original dataset. keep if inlist(variable,1,2)==1. gen time = t-t[_n-1]+1 if variable==2.STATA also reports the estimate of the overdispersion parameter vwhich it calls alpha.
     
  16. Tozuru

    Tozuru

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    When the dependent variable is a non-negative count variable, the standard OLS regression is no longer valid. Typically, the Poisson regression or some.Sometimes the count of zeros in a sample is much larger than the count of any other frequency.
     
  17. Kazrazragore

    Kazrazragore

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    COUNTMATCH: Stata module to count matching values for one variable in another. Author & abstract; Download; Related works & more; Corrections. Author. Listed.I have about half a million observations, so something that doesn't take too long would be appreciated.
     
  18. Merisar

    Merisar

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    I need to create a new variable that counts the number of observation with the same value in a row for a variable in a dataset in STATA.Search Advanced search….
     
  19. Kaziramar

    Kaziramar

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    Stata has two system variables that always exist as long as data is We will fill in the blanks in the ticker variable (this assumes that.Now n1 is the observation number within each group and n2 is the total number of observations for each group.
     
  20. Shaktikasa

    Shaktikasa

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    It also offers options for prediction or interpolation of the underlying exact count variable. In due course, the software will be made.This extra variation is referred to as overdispersionwhich may arise due to an omitted explanatory variable.
     
  21. Kizragore

    Kizragore

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    generate count = _n. line 1 sets the number of observations to line 2 uses the generate command to create a variable called 'count1'.The last block of code is illegal, so please don't claim that it works.
     
  22. Goltikasa

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    You can help correct errors and omissions.
     
  23. Tygoktilar

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    The Overflow Blog.
     
  24. JoJogal

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    The interpretation of the coefficient on age remains the same as before.
     
  25. Zulkizuru

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    It is a slow version of the two lines just given.
     
  26. Gobar

    Gobar

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    More about this item Keywords data management ; duplicates ; matching ; Stata ; All these keywords.
     
  27. Faegami

    Faegami

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    This suggests that our data is overdispersed and that a zero-inflated negative binomial model is more appropriate than a zero-inflated Poisson model.
     
  28. Bralmaran

    Bralmaran

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    More about this item Keywords data management ; duplicates ; matching ; Stata ; All these keywords.
     
  29. Vudom

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  30. Bagul

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    Ronak Shah Ronak Shah k 18 18 gold badges silver badges bronze badges.
     
  31. Kihn

    Kihn

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    Based on the error, IMP is a string variable, which causes egen count to barf.
     
  32. Tetilar

    Tetilar

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    More positively, this works and is perhaps closer to what you were thinking.
     
  33. Nejas

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  34. Doubar

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  35. Gardagami

    Gardagami

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    Improve this answer.
    Count variable stata. COUNTMATCH: Stata module to count matching values for one variable in another
     
  36. Shaktik

    Shaktik

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    I feel like this is very simple.
     
  37. Sagul

    Sagul

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    The Vuong test suggests that the zero-inflated negative binomial model is a significant improvement over a standard negative binomial model.
     
  38. Tushura

    Tushura

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    Statistics Access and download statistics.
     
  39. Kazitaur

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    Log in Register.
     
  40. Moogull

    Moogull

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    The help file includes detailed notes on the problem.
     
  41. Kagajin

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    After that I can merge the resulting file with my original dataset.
     
  42. Zulkirg

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    We have no bibliographic references for this item.
     
  43. Dojinn

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    Cox Durham University.
     
  44. Mezigal

    Mezigal

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    forum? How to cite this page.
     

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