Create Risk Prediction Variable from 2 Different Heckman Correction Models

Hi everyone, I'm wondering if there's a way to create a risk prediction variable from the results of two different Heckman Correct...

Using mca or pca to generate a single variable

Dear colleagues I know I can use principle component analysis (PCA) on categorical variables by first coding them as dummies. Multiple corre...

ipdmetan - estimation_command

I would like to use ipdmetan to do an IPD meta-analysis for studies with treatment response yes/no as the outcome. The sample code provided ...

Testing dominance between Lorenz curves

Hello Stata Experts, I will request information on the Stata code to test for dominance between two or more Lorenz curves. I am using Stat...

Conducting multinomial regression on multiply imputed variables for subset data

Hi Is there a way to conduct multinomial regression for a weighted subsample datasets? For e.g. I used mi estimate: mlogit DV IV1 IV2 IV2[i...

Date values are different

Hello, I have values for the dates given in LB21B. I used the code egen LB21B_12=convertCMC(LB21B) when I apply %td on both values, none o...

A conceptual question about when should I add fixed effect and cluster the fixed effect?

Suppose I add a time-fixed effect to a panel data regression that I want to estimate using OLS. My question is conceptually when should I al...

How can I get several variables' mean values at the smae

I want to create a vector containing several variables' mean values. But the summarize command only return the last variables' mean...

Interpreting coefficients (percentage points vs percentage)

I was reading a paper that ran a difference-in-differences regression and the coefficient value was -0.036. The dependent variable is vote s...

Interpreting coefficients (percentage vs percentage points)

I was reading a paper that ran a difference-in-differences regression and the coefficient value was -0.036. The dependent variable is vote s...

Old bug

Dear All, I hope someone following Stata for many years can help me with remembering: there used to be a problem (and I hope I can recolle...

What is a GROUP variable in difference in differences analysis?

Query: What is a GROUP variable in difference in differences analysis? Study : Newspaper articles from 1985-2017 were categorized as eith...

Testing for model specification error in fractional regression

Hello, I employed fractional regression model proposed by Wooldridge and Papke to estimate the dependent variable (a proportional variable...

VAR and Impulse response function

Dear Statalists, I am working on a project where I need to 1. estimate the reduced form VAR to predict the residuals ( the shock/ the inn...

Separating a string variable into separate variables

I have a string variable CODEX which has the underlying cause of death coded first, and any secondary causes of death following. The cause o...

Generating Variable That Depicts Increase

My dataset comes from a survey with 5 waves that has a general score (variable GScore). I am trying to do the following: 1) I am trying to...

SEM modeling ( path model)

Dear ll, I hope you are doing well. I'm working on my paper and i would like to study the mediating role of M on the relationship be...

sdid in case of unbalanced panel

I need to run synthetic difference is difference regression. Therefore, I need balanced panel data. But, as you can see my sample year is fr...

Calculate age from other occurrences and attribute it to specific observation

Hi, I'm working with consecutive censuses. I can follow the same individuals through several decades. However, age is not always repor...

Creating Graphs with Regression Output

I am attempting to determine whether hours worked and wages have changed overtime differently for different generations. So I am running the...

Mediation Analysis - Stata sem and medsem commands with fixed effects models

Hello everyone, I am trying to perform a mediation analysis, in which the variables of concern are as follows: Dependent Variable (Y) -...

Portfolio construction

Hello, I have data of individual investors trading behavior. Below you see an abstract of my data. My data is sorted by investor and date....

Reference period in new DID estimators

Hello all! I am running a few checks using the new heterogeneity-robust diff-in-diff estimators, specifically: csdid, did_imputation, and di...

Matching data over time?

Hello, I have a sample from the Current Population Survey (CPS). My data is monthly from 2015-present for the variables empsame , empstat ...

Creating new variable (subtracting) same individual

Hi, I am using individual-level dataset across 4 years to try and calculate the mobility out of low wage between 2020 and 2017. I created ...

vlookup generates same id

I read the thread on Complicated Vlookup-type problem in a large dataset. I am facing a similar problem with my research. I was able to g...

Cox model with an unbalanced panel

Hello everyone, I'm running a cox model with an unbalanced panel from 2015-2021 to measure the factors that influence the survival of ...

When including interacted fixed effects, do I also have to include each fixed effects separately in the model?

When including interacted fixed effects, do I also have to include each fixed effects separately in the model? For example, if I want to in...

Difference in Difference analysis - how to create a group variable

I think my question is pretty straightforward. I'd like to know what my "Group" is for a difference in differences analysis. ...

My Lorenz curves are coming out as straight lines.

Hello Stata Experts, I am trying to create lorenz curves for a variable with four categories. I have done this before but this time my cur...

Adding and simplifying observations; from daily to weekly

Hello to all. I´m kind of new in using STATA, and I´m having trouble figuring out how to merge observations. I have binary values for sever...

Interpretation of "/logs" in Stata17 output using mestreg

Dear Stata users, Can someone please kindly explain in simple terms what the "/logs" output refers to in the following code? I...

Plotting a bar graph with two y-axis

dear colleagues I am trying two create a bar graph with two y-axis from my data and code below and am getting error "invalid span'....

Marketing Communication Mix

Defined as a “dialogue between business unit and its present and potential customers that takes place during pre-selling, selling and post-s...

eivreg in rolling window setting (estimates not stored properly)

Dear Statalist, I might be shooting my shot with this post but I want to implement the eivreg command in a rolling-windows setting using ...

Combining surveys with distinct analytical weights

Hi. I have a dataset which combine 14 household surveys in 14 countries. Each survey was conducted in different years and each survey has ...

regress with panel data

Code: * Example generated by -dataex-. To install: ssc install dataex clear input str7 ym byte hs_c float imports str3(importer exporter) ...

asroprobit may estimate the variables that are not defined in the code?

Hello, When I followed the tutorial to learn the asroprobit command in the Stata software, I typed the following code: use http://www.st...

Tabulating estimates of endogenous variables in dynamic forecast models

Hi I am running some dynamic forecast models, each of which contains 7 endogenous variables. Since there are missing values for some of th...

[LASSO] Collinear covariates: Suggested addition to the documentation

I would like to suggest an addition to the documentation for collinear covariates in LASSO models. The Summary section currently reads as f...

How to weight data using CPS weights in STATA?

Hello, I have CPS monthly data 2015-present. I want to calculate unemployment rate. I am using empstat and labforce variables from the C...

Stata dataset to latex table

I have a dataset in stata that looks like this: quintile mean t_stat 1 0.0100 4.100 2 0.0200 4.200 3 0.0300 4.300 4 0.0400 4.400 5 0.0500 ...

Help with reshaping the data

Dear community, I am trying to bring some data into a different format. The data is World Uncertainty Index, which is publicly available f...

Show the working directory and save it in a macro

Hi~ I can use command cd or pwd to show the working directory. But how can I save the returned results in a macro. If I can do this, it wi...

Adding % to stacked bar chart

Dear statalisters, is there a way to add %-signs (by code) to my stacked bar chart? here is the code for data preperation and graph: ...

Cleaning string variable

Dear all, I have a variable called place_birth in my dataset. Some of the locations weren't recorded properly. place_birth Feucher...

Error merging master data with using data keeping the merge key as city and statefip

I need to convert my master data to county level. For that in my master data I have statefip and city name. In my using data I have city , s...