Is Stata's C function ST_var_is_string returning the wrong values, or is my C...
I have this C code: Code: #include <stdio.h> #include "stplugin.h" STDLL stata_call(int argc, char *argv[]) { ST_boolean b; int i; for (i = 1; i <= SF_nvars(); i++) { b = SF_var_is_string(i);...
View ArticleGenerating random variable from 95% confidence interval
Hello, I would like to randomly generate a variable from the 95% confidence interval of a normally distributed variable. I've had no luck finding any suggestions so far. Any suggestions? Thanks in...
View ArticlePossible misspecification in gravity model (PPML, RESET test)
Dear all, Brief overview: I' m trying to estimate the impact of intrawar presence(1) interwar presence(2) and economic sanctions(3) on exports, using a gravity model. When it comes to estimate gravity...
View Articlenumber of obs in mixed effect model, panel data
Hi, I have a data set of 4,500 children's' weight status and their lifestyle behaviors and two waves (baseline and follow-up) are included. Now I am trying to examine the relationship between weight...
View Articlemultiple imputation, variance
Dear all, I have dataset which contains multiply imputed values (5 implicates) and survey weights & I am trying to estimate the standard deviation for the regressors using Rubin's combination...
View ArticleNew Stata Module to Estimate Shirley Almon Generalized Polynomial Distributed...
TITLE 'ALMON': Module to Estimate Shirley Almon Generalized Polynomial Distributed Lag Model DESCRIPTION/AUTHOR(S) almon estimates Shirley Almon Polynomial Distributed Lag Model for many variables with...
View ArticleCreating a table showing number of unique subjects seen by each of several...
Hello, The short code below will simulate data and create a report showing how many subjects seen per care provider, where some subjects have seen multiple providers, and some subjects will have seen...
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Question: how to select several variables date1, date2, date3, ..., dateX at...
Hi Stata Masters, Before I post my question, I would like to inform that I'm quite new with Stata and English is not my mother language. Please apologize if you find my questions or English is weird....
View ArticleGMNL model
Dear STATA users, I am trying to run a GMNL model using this commands: gmnl choice rand(espresso highcalories italy highprice) group(setid) id(id) nrep(100) but I got this message: "factor variables...
View ArticleUsing file command to link Stata with LaTeX
Hello everyone. Basic stuff: I'm using a Mac, Stata/MP 13.1 version, and this is my first post. Well, the basic idea is that I want to link Stata outputs automatically to LaTeX (for my dissertation)....
View ArticleDifference in difference example
I want to apply DID method on a economic problem. I would like to estimate the effect of financial constraints (if there is any) on investment. I want to be sure I have done everything right so I will...
View ArticleDescriptive stats for analyzed sample -- different Ns for xtregar but not xtreg
Hello Following a previous forum answer, I used the e(sample) method to get statistics on an analyzed panel sample. Since it was a panel sample, I also wanted to collapse by participants since I was...
View ArticleHow to save the coefficients on a mode;
Dear Statalist I have this this model which will be run for each firm in each industry every year y= a+Bx1+B2x1+B3x3+e how can I save the the estimated coefficients B1,B2 &B3of this model to use it...
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Recoding
Dears, We have a large dataset (panel). For each observation (individual) in the dataset we have industry code 1 and industry code 2. But industry code 2 have missing values so does industry code 1,...
View Articlemulticollinearity test
Dear all, How can I test multicollinearity with survey data? I have tried: display "tolerance = " 1-e(r2) " VIF = " 1/(1-e(r2)) but it returns: tolerance = . VIF = . Thank you in advance. BR
View ArticlePlease help: Error r(2000) when running svy logistic
Hello, I am using Stata/1C 12.0 and have been having some difficulty running svy logistic. I would greatly appreciate any help. I am able to run the model no problem using: svy: logistic outcome mode...
View Articlej-1 or j number of IMR after mlogit
Hello! I am trying to estimate treatment effect (endogenous switching regression) using multinomial selection equation with three treatment categories . I have in fact tried to browse regarding the IMR...
View ArticleNew command calculating sf12 version 2
Hi Thanks to Kit Baum a new command -sf12- is present at ssc. It calculates the sf12 version 2 as described at Mr Hays homepage. Have fun!
View ArticleHow can i reset normal menu view?
Hi everyone and Merry Xmas! I have a big problem with my menu view! Evrything is written in capital letters and i would like to reset it to default! Any suggestions? Thank you
View ArticleAlphas from dummy variables
Hello, I have a question about my regression running in STATA. At the moment my model is Gearing ratio= a + a1*Public+ a2*DebtCrisis + b1LNStructure-Aggregate + b2 Structure-Aggregate*Public +...
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