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Forum: Stata

Stata usage and programming, Stata help

  1. 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: 85
    04-27-2016, 03:51 AM Go to last post
  2. 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: 127
    04-23-2016, 01:42 PM Go to last post
  3. 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
  4. 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: 1
    • Views: 246
    04-16-2016, 06:34 AM Go to last post
  5. 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: 151
    04-15-2016, 02:18 PM Go to last post
  6. 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: 160
    04-12-2016, 11:09 AM Go to last post
  7. 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: 1
    • Views: 147
    04-12-2016, 03:26 AM Go to last post
  8. 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: 267
    04-04-2016, 02:47 AM Go to last post
  9. 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: 13,862
    04-01-2016, 02:18 PM Go to last post
  10. 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: 10,633
    03-31-2016, 01:21 PM Go to last post
  11. 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: 399
    03-30-2016, 10:52 AM Go to last post
  12. 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: 310
    03-27-2016, 05:22 PM Go to last post
  13. 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: 428
    03-16-2016, 11:53 AM Go to last post
  14. 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: 319
    03-10-2016, 09:59 AM Go to last post
  15. 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: 187
    03-09-2016, 10:24 AM Go to last post
  16. 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: 367
    03-04-2016, 06:57 AM Go to last post
  17. 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: 283
    02-27-2016, 02:09 PM Go to last post
  18. 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: 945
    02-23-2016, 09:34 AM Go to last post
  19. 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: 388
    02-15-2016, 07:27 AM Go to last post
  20. 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: 418
    02-12-2016, 02:42 AM Go to last post
  21. 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: 240
    02-11-2016, 10:54 AM Go to last post
  22. 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: 326
    02-05-2016, 08:48 AM Go to last post
  23. 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: 275
    02-01-2016, 01:44 PM Go to last post
  24. 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: 393
    02-01-2016, 10:07 AM Go to last post
  25. 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: 306
    01-28-2016, 02:13 AM Go to last post
  26. 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: 240
    01-27-2016, 12:58 AM Go to last post
  27. 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: 1,654
    01-08-2016, 04:51 AM Go to last post
  28. 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: 289
    01-08-2016, 04:43 AM Go to last post
  29. 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: 375
    01-05-2016, 06:53 AM Go to last post
  30. 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: 484
    12-15-2015, 08:43 AM Go to last post
  31. 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: 428
    12-06-2015, 10:01 AM Go to last post
  32. 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: 352
    12-03-2015, 08:01 AM Go to last post
  33. 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: 488
    11-20-2015, 01:02 PM Go to last post
  34. 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: 620
    11-12-2015, 10:56 AM Go to last post
  35. 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: 288
    11-10-2015, 06:00 AM Go to last post
  36. 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: 687
    11-06-2015, 09:47 AM Go to last post
  37. 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: 422
    10-28-2015, 05:35 AM Go to last post
  38. 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: 490
    10-24-2015, 06:16 PM Go to last post
  39. 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: 501
    10-15-2015, 10:35 AM Go to last post
  40. [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: 17,098
    10-08-2015, 10:08 AM Go to last post
  41. 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: 585
    10-07-2015, 02:39 PM Go to last post
  42. 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: 269
    10-07-2015, 01:22 PM Go to last post
  43. 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: 456
    10-02-2015, 09:10 AM Go to last post
  44. 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: 550
    09-22-2015, 03:56 PM Go to last post
  45. 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: 624
    09-22-2015, 02:47 AM Go to last post
  46. 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: 458
    09-15-2015, 02:06 PM Go to last post
  47. 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: 541
    09-14-2015, 03:59 PM Go to last post
  48. 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: 295
    09-14-2015, 06:22 AM Go to last post
  49. 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: 614
    09-14-2015, 04:04 AM Go to last post
  50. Nomogram

    Hi everybody Are there any command in stata for drawing multivariable Nomogram?

    Started by milad‎, 09-05-2015 02:47 PM
    • Replies: 4
    • Views: 702
    09-06-2015, 03:32 PM Go to last post
  51. Dummy variable in meta-regression in Stata

    Cab meta-regression model be used to investigate dummy independent variables ( 0 and 1 variable) such as continues variables? How i can determine...

    Started by milad‎, 09-05-2015 02:44 PM
    • Replies: 0
    • Views: 339
    09-05-2015, 02:44 PM Go to last post
  52. Need help with the code to create a signle data file out of 1,200 txt's

    Hello dear forum members, My data include roughly 1,200 *.txt files, where (a) * is a 3 to 7 digit non-consecutive number representing...

    Started by kiton‎, 08-30-2015 10:05 AM
    data convertion, data entry, recoding
    • Replies: 1
    • Views: 482
    08-31-2015, 08:54 AM Go to last post
  53. Question Regression with two fixed effects in STATA 11

    Hello, I need to run a standard econometric model (a standard panel regression) with two fixed effects in STATA 11. Could you please help me and...

    Started by stata_s‎, 08-30-2015 12:00 PM
    code for this please, fixed effects model, panel data, stata 11
    • Replies: 0
    • Views: 402
    08-30-2015, 12:00 PM Go to last post
  54. Stata keeps deleting observations from a variable?

    Hi all, I am creating one variable from several dummy variables using gen newvarname=0 replace varname=1 if varname==1 replace varname=2 if...

    Started by georgina1‎, 08-28-2015 11:16 PM
    • Replies: 0
    • Views: 394
    08-28-2015, 11:16 PM Go to last post
  55. Change score in long format

    Hey guys. So I'm working on data and need to compute a change score. The data is panel data, where ID is country and I have 12 years. Here's my...

    Started by starpen‎, 08-27-2015 04:10 AM
    change score, lead, panel data
    • Replies: 0
    • Views: 388
    08-27-2015, 04:10 AM Go to last post
  56. imputations

    Dear all: I am working with data from a large cohort study in which participants were asked, retrospectively, about their work history. Data are...

    Started by sonia zam‎, 08-24-2015 05:53 PM
    • Replies: 0
    • Views: 474
    08-24-2015, 05:53 PM Go to last post
  57. Extract numbers from a string

    I have this data of duration in the following format:PT2H4M37S and I want to extract the hours, minutes and seconds separately. I tried to use...

    Started by kaisermuhle‎, 08-18-2015 05:47 AM
    • Replies: 6
    • Views: 697
    08-24-2015, 02:03 AM Go to last post
  58. CIF with 95% confidence interval STATA 13

    I wanted to ask for help on how to draw the CIF curve after a competing risk analysis in STATA 13, along with the 95% confidence interval on the same...

    Started by eabuassi‎, 08-12-2015 04:42 PM
    • Replies: 1
    • Views: 681
    08-21-2015, 01:53 AM Go to last post
  59. Removal of text values in data

    Hi, I'm scratching my head - I'm dealing with data collected on paper and entered manually where the vast majority is numeric, lots of binary...

    Started by Matt Stat15‎, 07-13-2015 10:49 AM
    • Replies: 2
    • Views: 606
    08-20-2015, 09:25 AM Go to last post
  60. Lightbulb Moving Window Principal Component Analysis

    Hi, I'm finishing my thesis we're I'm forming currency-hedge investment portfolios out of the PCA on the currencies. I need to do a PCA using a...

    Started by JBM_1990‎, 06-02-2014 07:06 AM
    moving window, pca, r studio, rolling, stata
    • Replies: 2
    • Views: 1,587
    08-19-2015, 04:58 PM Go to last post

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