1. 10-14-2010
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Forum: Stata

Stata usage and programming, Stata help

  1. groups in xtmixed

    Hi all Having some issues with Stata when running xtmixed. The main issue being the number of groups (in initial Group Variable table) is not what...

    Started by gy13her‎, 06-27-2016 07:35 AM
    multilevel models, stata
    • Replies: 0
    • Views: 139
    06-27-2016, 07:35 AM Go to last post
  2. Labelling dummy variables with underlying variable names

    Hey there, I'm very new to Stata and fairly certain this has a simple solution but i don't seem to find it. I have a Dataset with 200 different...

    Started by Chris2291‎, 06-22-2016 09:48 AM
    • Replies: 0
    • Views: 168
    06-22-2016, 09:48 AM Go to last post
  3. Bar graph and box-and-whisker plot sorted over binary variable

    Hi, I have a dataset that looks like that below. I want to create graphs like the example below: The variable names var1-var4 in my...

    Started by teapot‎, 06-21-2016 03:00 PM
    • Replies: 0
    • Views: 138
    06-21-2016, 03:00 PM Go to last post
  4. Estimating treatment effect using movestay command

    Hello, I want to use the movestay command in Stata but my data is complicated and I’m unsure how to proceed. I would like to estimate the...

    Started by MichielvanRossum‎, 06-05-2016 08:27 AM
    movestay, stata, switching regression
    • Replies: 1
    • Views: 718
    06-08-2016, 11:09 AM Go to last post
  5. Write an equation in mata format

    Dear stata users, I am trying to setup the following equation in mata format: C1 + C2*((lnx)^2- C3)+ C4* ((lnx)^2*lnx- C5) I have attached the...

    Started by ledzep‎, 05-29-2016 10:12 AM
    • Replies: 0
    • Views: 317
    05-29-2016, 10:12 AM Go to last post
  6. Marginal effects after logistic

    I have all binary/categorical variables, and I am trying to decide between mfx/margins to obtain marginal effects in Stata. They seem to provide...

    Started by oncearunner‎, 04-14-2016 12:41 PM
    logistic regression stata, marginal effects
    • Replies: 2
    • Views: 426
    05-28-2016, 07:07 AM Go to last post
  7. svyset

    Hi, I have a database in which there are patients. Sample size is 1000. (100% response due to spare sample/replacement etc) 20 GPs were involved....

    Started by Drone999‎, 05-26-2016 08:18 AM
    survey analysis, survey weights
    • Replies: 0
    • Views: 126
    05-26-2016, 08:18 AM Go to last post
  8. Overlaying two histograms/lines?

    Hi all! I am going nuts in trying to do a graph which to me looks like the basic graph ever. Basically I have two variables: the score that the...

    Started by belfagor71‎, 06-25-2013 06:00 AM
    • Replies: 5
    • Views: 8,696
    05-25-2016, 09:32 AM Go to last post
  9. Pre and post with control: Difference in median

    I created the difference between pre and post UOF counts and then generate a variable that represents the median for each group. base on my...

    Started by Marvin85‎, 05-17-2016 04:01 PM
    median difference
    • Replies: 7
    • Views: 413
    05-19-2016, 11:51 AM Go to last post
  10. Stata: Drop company if last stock value of prior year is smaller than a certain value

    Hey all, I have a CRISP dataset with daily stock values for campanies from the first of december 2010 until the end of 2011. Now I need to...

    Started by Prometheus94‎, 05-15-2016 10:32 AM
    • Replies: 0
    • Views: 202
    05-15-2016, 10:32 AM Go to last post
  11. regression OLS e IV

    I need estimate a model specification by OLS and a model IV and endogeneity (cross-sectional data). When I try to estimate OLS, the standard errors...

    Started by Carla VN‎, 05-13-2016 02:25 PM
    • Replies: 0
    • Views: 163
    05-13-2016, 02:25 PM Go to last post
  12. Problem Logistic regression

    Hi, I want to do a logistic regression on proportional data in Stata that I've done with R before. So in R I used cbind to combine the two rows...

    Started by Buckyball‎, 05-10-2016 08:20 AM
    • Replies: 0
    • Views: 195
    05-10-2016, 08:20 AM Go to last post
  13. Help making a basic but large table in Stata

    Thanks for reading :wave: I am a beginner :confused: and trying to make descriptive tables. I am trying to create an 18x18 cross-table. The 18...

    Started by statakiss‎, 04-27-2016 03:51 AM
    big data in stata, cross tabulation, table
    • Replies: 0
    • Views: 349
    04-27-2016, 03:51 AM Go to last post
  14. Stata: Test that the difference between two groups = -1

    Does anyone know how to test the hypothesis that the difference between people without and with kids = -1 per night in Stata? I have the data set...

    Started by hbossut‎, 04-23-2016 01:42 PM
    alternative hypothesis, hypothesis, null hypothesis, stata, test
    • Replies: 0
    • Views: 252
    04-23-2016, 01:42 PM Go to last post
  15. Moved: Graphically check linearity in logit regression

    Started by Phaedrus‎, 07-21-2014 07:50 AM
    • Replies: -
    • Views: -
    04-19-2016, 10:59 AM Go to last post
  16. Regression with missing data

    Hi all So I just want to do a quick linear regression, but when I initially tried I had an error (r(2000 no observations). I've realised my issue...

    Started by gga10hr‎, 04-15-2016 01:53 PM
    linear regression, missing values
    • Replies: 1
    • Views: 211
    04-15-2016, 02:18 PM Go to last post
  17. Matrix multiplication operation in stata

    Hi I declared the following matrix mat p_h1=J(22,3,.) that contains some numbers. And now i need this simple task. Create another matrix with the...

    Started by jfca283‎, 04-12-2016 11:09 AM
    • Replies: 0
    • Views: 210
    04-12-2016, 11:09 AM Go to last post
  18. Drop duplicates by criteria :confused:

    Hello, i want to drop duplicates, but using a criteria. For example i am working with a dataset who has id for a lot of student, but the same student...

    Started by Banana_fish‎, 04-11-2016 06:15 PM
    • Replies: 0
    • Views: 209
    04-11-2016, 06:15 PM Go to last post
  19. Can the if option of xtreg unbalance Panel Data?

    Hi everyone, I have a tricky question regarding the way xtreg works. It amy also be a very simple question Using a balanced Panel Data with 10...

    Started by Alexandra 82‎, 04-03-2016 10:16 AM
    balanced data, unbalanced data, xtreg
    • Replies: 1
    • Views: 333
    04-04-2016, 02:47 AM Go to last post
  20. Latent Class Analysis with Stata

    Hi, Have anyone used Stata for Latent Class Analysis? I want to estimate willingness to pay with it, but I'm not sure it is possible with this...

    Started by jsuazo‎, 06-14-2013 10:55 AM
    2 Pages
    1 2
    lca, stata
    • Replies: 20
    • Views: 14,532
    04-01-2016, 02:18 PM Go to last post
  21. no observations r(2000)

    Dear all, I have just started using Stata for a time series analysis. However, there has already been to much failure before even started the acutal...

    Started by beckham-7‎, 10-25-2011 04:30 AM
    • Replies: 4
    • Views: 10,963
    03-31-2016, 01:21 PM Go to last post
  22. generating average with missing more than X values

    hi all, let's say i want to take the average of 5 scores for class tests for each student in a class. the data looks like the below EXCEPT...

    Started by bvowe‎, 01-05-2016 09:59 AM
    average, data, stata
    • Replies: 3
    • Views: 457
    03-30-2016, 10:52 AM Go to last post
  23. Extrapolation methods book

    Can someone recommend me some good book about extrapolation (ideally with STATA) which do not cover only survival but also extrapolations of other...

    Started by Vlajkony‎, 03-27-2016 11:10 AM
    • Replies: 1
    • Views: 587
    03-27-2016, 05:22 PM Go to last post
  24. Unhappy How program a Propensity Score Matching?

    Hello I need to "program" a Propensity Score Matching, but using only loops and not pscore or other command, my problem is that i dont now how...

    Started by Banana_fish‎, 03-16-2016 10:44 AM
    • Replies: 1
    • Views: 561
    03-16-2016, 11:53 AM Go to last post
  25. Adding up values of variables

    Hey guys, I got a rather complicated problem: I have two variables, ID and Country ID Country 11 US 11 ...

    Started by Andreas Hofer‎, 03-10-2016 09:59 AM
    calculation, stata, variable
    • Replies: 0
    • Views: 439
    03-10-2016, 09:59 AM Go to last post
  26. Question how join two tables into one

    for example i have var: var1 1 2 3 i want to add new obs . local new = _N + 1 . set obs `new'

    Started by wolf7808‎, 03-09-2016 10:24 AM
    • Replies: 0
    • Views: 246
    03-09-2016, 10:24 AM Go to last post
  27. Save graph vs saving

    Hello guys, What is the different between the "saving" options at the end of the command and the new command save graph filename? I have a do...

    Started by Marvin85‎, 03-01-2016 12:38 PM
    graph, histogram save
    • Replies: 2
    • Views: 450
    03-04-2016, 06:57 AM Go to last post
  28. Learning to make programs

    Hey guys. So I'm learning to program ado's and I have a question. Say I want to make a random joke generator in stata from a list of 100 jokes....

    Started by starpen‎, 02-27-2016 02:09 PM
    ado, code, program
    • Replies: 0
    • Views: 356
    02-27-2016, 02:09 PM Go to last post
  29. Date variable- only month

    Hi Guys, I have a date variable, save in the type below. example 03 Jul 14 DateToday long %dD_m_Y I would like to...

    Started by Marvin85‎, 07-24-2014 11:05 AM
    date, month
    • Replies: 5
    • Views: 1,083
    02-23-2016, 09:34 AM Go to last post
  30. Help with data management please

    Hi, I have a dataset that are all string and missing data are as NA. I am trying to convert it to numeric with encode command. I don't know how to...

    Started by Newcomer‎, 02-15-2016 05:19 AM
    • Replies: 1
    • Views: 457
    02-15-2016, 07:27 AM Go to last post
  31. ID-number in Stata

    Dear you, I might have a stupid question, but I have not found the answer on google, and I hope someone can help. I have a dataset where...

    Started by sju‎, 02-07-2016 11:02 AM
    identification, social security number
    • Replies: 1
    • Views: 494
    02-12-2016, 02:42 AM Go to last post
  32. ANOVA repeated measures

    Struggeling to find the right command in STATA for this repeated measures. I am going to to a repeated measures of bloodpressure testing for...

    Started by ama_nil‎, 02-11-2016 08:37 AM
    • Replies: 1
    • Views: 300
    02-11-2016, 10:54 AM Go to last post
  33. New ID variable using date variable

    I have a ID# for all my teachers but I noticed that there are some instances that an 2 or more teachers can have the same ID#. I want to create...

    Started by Marvin85‎, 02-04-2016 11:06 AM
    date variable, id variable
    • Replies: 2
    • Views: 381
    02-05-2016, 08:48 AM Go to last post
  34. Loop and mata - Foreach file doesn't work

    Hi I could get this simple task to work mat rama=J(17,3,.) forval j=1/17 { quiet summ sexo if b14_2_rev3n==`j' local b14=r(sum_w)...

    Started by jfca283‎, 02-01-2016 01:44 PM
    • Replies: 0
    • Views: 342
    02-01-2016, 01:44 PM Go to last post
  35. stata matrix to Mata?

    Hi I have a matrix in Stata but i need to export it to Mata. I've been reading abiut the issue i'm asking and i couldn't get a simple order to...

    Started by jfca283‎, 01-22-2016 02:15 PM
    • Replies: 2
    • Views: 479
    02-01-2016, 10:07 AM Go to last post
  36. Malmquist Productivity Index With STATA 13

    The Malmquist Index (MI) with sTATA 13 is a bilateral index that can be used to compare the production technology of two economies. It is named after...

    Started by OlhDt_semarang‎, 01-28-2016 02:13 AM
    • Replies: 0
    • Views: 415
    01-28-2016, 02:13 AM Go to last post
  37. Question about panel data

    Hi, I'm new to Stata and have firme's panel data. I want to eliminate firms that exit from export market. I mean if a firm export in year t but ...

    Started by fzahra‎, 01-27-2016 12:58 AM
    • Replies: 0
    • Views: 319
    01-27-2016, 12:58 AM Go to last post
  38. Basic stata help

    Hello, I'm new to stata so this is a fairly basic question! I'm trying to find whether there's a relationship between gender and weekly wages, but...

    Started by TPJ66‎, 12-24-2015 01:37 PM
    • Replies: 3
    • Views: 1,737
    01-08-2016, 04:51 AM Go to last post
  39. Stata error with xml_tab

    Hello everyone, I am trying to run a do-file on stata but it doesn't work. I always get the same message: "using not allowed" when I try to use...

    Started by Eometh‎, 01-08-2016 04:43 AM
    • Replies: 0
    • Views: 350
    01-08-2016, 04:43 AM Go to last post
  40. combining two continious variables

    Hi there! I have two variables: var1(12, 3, 5, 20, 15...) and var2(5, 3, 16, 15, 22, 30, 7...) now i want to combine them into something like...

    Started by fakhijr‎, 12-15-2015 06:50 AM
    • Replies: 5
    • Views: 444
    01-05-2016, 06:53 AM Go to last post
  41. Question Is it possible to create forest plots from precomputed data?

    Hi all, 1. Is it possible to create forest plots from precomputed data? I'm not sure what syntax to use (I'm unfamiliar with Stata - more familiar...

    Started by j4ne‎, 12-15-2015 06:03 AM
    • Replies: 1
    • Views: 551
    12-15-2015, 08:43 AM Go to last post
  42. linear or quadratic relationship:

    How can you test whether Y and X in a multiple regression have a linear or quadratic relationship using STATA? Any help would be greatly...

    Started by stats2424‎, 12-06-2015 10:01 AM
    • Replies: 0
    • Views: 471
    12-06-2015, 10:01 AM Go to last post
  43. White Papers

    I publish a free e-Magazine for SAS/R/SQL and a few other softwares. I was recently asked to add Stata, but I am not very familiar with this...

    Started by cjohnson‎, 12-03-2015 08:01 AM
    • Replies: 0
    • Views: 411
    12-03-2015, 08:01 AM Go to last post
  44. Monthly date variable from integers

    I have a variable that takes values 1,2,3...39. Each value indicates a month-year. How could I create a date variable in STATA with this information,...

    Started by jsaldain‎, 11-20-2015 01:02 PM
    date variable
    • Replies: 0
    • Views: 548
    11-20-2015, 01:02 PM Go to last post
  45. Calculate HHI

    Hi Guys, i am pretty new when it comes to using stata, since i need it to finish my master thesis. Now i have to to calculate the HHI for over...

    Started by Gerrit Komrij‎, 11-12-2015 10:08 AM
    hhi, stata
    • Replies: 2
    • Views: 705
    11-12-2015, 10:56 AM Go to last post
  46. How to make 35 observations from 12 items into one variable in Stata?

    Hi, I have a 12 item measurement with Likert scale (1-5) that two dimensions, 6 items for each. I have 35 observations and now I need to simplify...

    Started by katrins08‎, 11-10-2015 06:00 AM
    • Replies: 0
    • Views: 337
    11-10-2015, 06:00 AM Go to last post
  47. Exclamation Help!

    Hi, Could you help me out with a STATA problem? Probably for you it would be like teaching alphabet to a kid.*

    Started by Tom Miller‎, 10-31-2015 10:41 AM
    • Replies: 3
    • Views: 754
    11-06-2015, 09:47 AM Go to last post
  48. cumulative graph

    Hi. I have 100 people who, at different percentages (8-35%), have obtained a certain status. I am trying to sort/accumulate the percentages on the...

    Started by lawin01‎, 10-28-2015 05:35 AM
    • Replies: 0
    • Views: 487
    10-28-2015, 05:35 AM Go to last post
  49. Panel or CrossSection with lots of dummies ?

    Hello Friends I'm writing an article about the relation between sales and scores ( games ). My data base consist in 4 variables ( Sales, Year,...

    Started by FlavioShneider‎, 10-24-2015 06:16 PM
    • Replies: 0
    • Views: 547
    10-24-2015, 06:16 PM Go to last post
  50. Lightbulb Matching children's information to parents

    Dear Stata users I am working on the Labor force survey, and I am trying to match children information to parents. Here the syntax: use...

    Started by giuliadn‎, 10-15-2015 10:35 AM
    stata12 merge
    • Replies: 0
    • Views: 563
    10-15-2015, 10:35 AM Go to last post
  51. [Stata] - String values on axis of graph

    Hi there, I would like to create a graph with the value of a string variable in the x axis. Right now I can do line price id and I...

    Started by kungal‎, 09-02-2010 05:47 AM
    • Replies: 7
    • Views: 17,709
    10-08-2015, 10:08 AM Go to last post
  52. Annual percentage change in incidence

    Hello everyone Could you please give an idea to calculate annual percentage change in incidence in stata??

    Started by Bimi‎, 10-07-2015 09:52 AM
    • Replies: 2
    • Views: 661
    10-07-2015, 02:39 PM Go to last post
  53. String date to date variable

    I have a string variable containing dates (1/28/15) (DAateToday) and would like to make it a real date variable. I tried: gen...

    Started by Marvin85‎, 10-07-2015 01:22 PM
    date, string to date, td. mdy
    • Replies: 0
    • Views: 313
    10-07-2015, 01:22 PM Go to last post
  54. Question How to run regression by industry and year in STATA

    Hello, I am new to STATA and encountering problem to run regression by industry and year. I need to calculate residuals for each observation...

    Started by mtahir‎, 10-02-2015 09:10 AM
    • Replies: 0
    • Views: 522
    10-02-2015, 09:10 AM Go to last post
  55. identidication problem in nl estrimation (STATA)

    Dear All: I am trying to estimate the parapétters in the equation spccifyed in the file attached. Since it is quite non-liner, we have tryed...

    Started by lletelie‎, 09-22-2015 03:56 PM
    • Replies: 0
    • Views: 594
    09-22-2015, 03:56 PM Go to last post
  56. Keep duplicates with the highest value

    Dear all, I have a dataset with a lot of duplicates. I'm using this commands: then my dataset looks like that for example:

    Started by pelias2‎, 09-16-2015 09:31 AM
    • Replies: 1
    • Views: 694
    09-22-2015, 02:47 AM Go to last post
  57. Reweighting with bootstrapping and survey design

    Hello I am trying to do a DFL style reweighting with bootstrap weights and SEs. I have a 2 stage stratified sample over 5 rounds (repeated cross...

    Started by fatima_‎, 09-15-2015 02:06 PM
    • Replies: 0
    • Views: 522
    09-15-2015, 02:06 PM Go to last post
  58. Pie chart and percentage Stata

    Hello, I'm starting with Stata 13 and I'm trying to make a pie chart with the %s included. I have "press" all the "buttons" but nothing... It`s...

    Started by carlospbm‎, 09-13-2015 03:55 PM
    graphics, stata
    • Replies: 2
    • Views: 614
    09-14-2015, 03:59 PM Go to last post
  59. Obtaining summ of coefficients of lagged variables

    I am estimating the following regression: yi,t = a + b1xi,t + b2xi,t-1 + b3xi,t-2 + e How can I report, using outreg2, b2 + b3; that is, the...

    Started by jsaldain‎, 09-14-2015 06:22 AM
    • Replies: 0
    • Views: 347
    09-14-2015, 06:22 AM Go to last post
  60. preparing/scoring dataset

    Dear all, I really hope that somebody can help me out. I need to run a factoranalyse on two different scales (Regulatory focus and regulatory...

    Started by CorineSlab‎, 09-08-2015 02:50 AM
    • Replies: 1
    • Views: 689
    09-14-2015, 04:04 AM Go to last post

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