Possible to put interaction terms of X and indictors of Y quintile in a regression?

Dear Statalist users, I am wondering if I would estimate a regression like this: Y = X + X * Y_Q2 + X * Y_Q3 + X * Y_Q4 + X * Y_Q5 + Y_Q...

how to replace/recode variables that are a multiple of some number

Hi I have a variable "level" that ranges from 1 to 125 I would like to recode it into a variable "pitch", such that val...

Shortcut for generating new variables based on many existing

I have groups of variables contactoutcome_con_<y>_<x> and contactmethod_con_<y>_<x>, where x is a program from 1-8 a...

create a loop to convert string variables in numeric variables

Hello, I am Salvatore, happy to join the Stata Forum community. I am a new user who recently started using Stata. For my thesis research, ...

Matching without replacement from a file of pairs for case-control and other applications

Short version: I’m seeking a solution to how to do 1:m matching of cases and controls without replacement, *given a file in long (“edge”) fo...

bysort query issues

Hello all: I am trying to replace first row of path with "CLL" and second row of path as "RT" for _merge == 2 cases. T...

Replace command with non-mutually exclusive categorical data

Hello, I am working with a dataset from a Twitter content analysis project and am stuck trying out figure out how to take 8 categorical tw...

Number of lags too high

Hi everyone, I am writing as I am currently working on my bachelor's thesis with Stata. I am doing a time series analysis. I have fo...

pweights in reghdfe allow colinear variable to generate a coefficient?

Hi, This is my first post here. This question pertains to the use of pweight in reghdfe. I have a variable that is colinear with the fixe...

VAR or PVAR different lags for endgenous variables

Dear community, in a VAR or PVAR model would it be possible for endgenous variables to have different lags? The PVAR seems to always use...

comparing the parametric survival regression models

What is the command for comparing the parametric survival regression models? For example, I estimate the model by both exponential and Weibu...

comparing the parametric survival regression models

What is the command for comparing the parametric survival regression models? For example, I estimate the model by both exponential and Weibu...

Dummy for export-starters and non-exporters in the period just before the export-starter enters the export market

I want to create a dummy for export starters to non-exporters in the years before entry. How can I code this? When Export[_n]==1 & Ex...

How to inform readers the context of hierarchical logistic regression that removes significant main effects

Hello all, I'm examining a hypothetical scenario to determine how living alone and the mechanism of feedback affects a person's wi...

PPML - generating a time dependent threshold

Dear Stata community, I am working with a gravity model and what to cluster my observations depending on if they are in the highest, middl...

Generating dummy observations to balance a panel

I hope this request makes sense, as it is just to aid in my estimation. Below is the dataex of a dummy dataset resembling my original, and b...

Determining the explanatory power of an interaction term

Hi everyone, I'm trying to fill a table with each line representing the explanatory power of a particular part of my model (such as fi...

Conditional loop analysis with sums in panel data

I have an unbalanced data of company id (i) country code (c) year (y) ratio-1 (r1) ratio-2 (r2) ratio-3 (r3) ratio-4 (r4) ...

Using a loop to calculate new variable

Hello all, I want to find the new sale price for each year represented through new_sales . I will use the sale price in 2000q4 as the base...

How to define treatment & control groups properly?

I’m working on a project examining the effect of a 2016 cash transfer on fertility. Who is eligible for the cash? All families with: 1.) ...

What miss option means in gunique ?

Deat Stata user, I found this gunique function, and using the same variable list I got different total observations and unique observations...

CI Decmposition Results not Showing percentage contribution

Hi All, I am using Stata 16 and trying to decompose the concentration index but the results show nothing for percentage contribution. My d...

synth_runner automatically generated predictorvars

I am using synth_runner in STATA 17. I got the exact same results when I run two specifications. depvar remains the same. In the second spec...

Extract country names from affiliations

Hi, I have a dataset of about 1000 articles with variables such as id, title, abstract and affiliation. I was unable to get a dataex due t...

Flexible case-control matching command

Hello, First, thanks in advance for anyone who can help me with this. I haven't had much luck recently with other avenues so I hoped I...

Working with Time and DateTime variables from Excel

Hi, I noticed that whenever I import an excel file that contains a time or datetime variable onto Stata (time up to seconds), the values f...

scatter graph with different styles and specific axis

Hi statalist, I have the following data: Code: * Example generated by -dataex-. For more info, type help dataex clear input byte perio...

Twoway Line: Deleting a straight line

Hello, I am trying to create a figure using the code: twoway line sum mdate. The figure shows both a actual line and a straight fitted line....

Panel Data fixed effects and time effects

Hello there, For my master thesis I am conducting research about the effects of the digital divide on the educational attainment in the Eur...

Question on metacumbounds

Hi everyone, I would like to seek advice on the metacumbounds package used for trial sequential analysis. I have 2 questions: 1. error ...

Populating a column with values

I need to populate the empty columns with corresponding values within that year, it could be that I have to repeat the entry of the values (...

Failing to convert .shp and .dbf dile to .dta format

Hello, I'm trying to convert a gis file to .dta format. To answer a few questions: .shp and .dbf are in the same directory and there i...

chnaging values of a variable

Dear Listers, I am using Stata 15.1. I am working with a dataset with more than a million observations. I would like to change the value...

log differenced model and GMM Estimator

Hi all, I have panel data (T=30) and due to potential threat of non stationarity in my data i've transformed my data into log differen...

heterofactor and ML maximization

I am using the heterofactor command ( https://www.stata-journal.com/articl...article=st0431 ), but it is not interacting properly with mle m...

Significant in one-way, but not in two-way ANOVA

Hey, I'm currently doing my data analysis for my thesis but I encountered a problem. The main effect is significant in the one-way ANOVA...

Stset with durations

Stset with durations. hello i have wide format data with different dates which i used to create different DURATIONS since the begining of o...

Question: Bayesian Vector Autoregression (BVAR)

Hello everyone, is there any code to summarise and or combine results from BVAR model? For instance...quietly, esttab, eststo is not workin...

Split population duration

Hello, I'm trying to make a Split population duration with the spsurv command but I can't understand how to get on one side the surv...

Merge accuracy using str format when most contain only numbers

Dear stata user, I have a question regarding the merge accuracy of str. I have dataset A whose firm_id are in string format, but most of th...

Summing over a value of variable for repeating county

Hello respected stata community, I have a dummy variable which takes the value 0 and 1. The observation for different counites are given b...

Box plot help

Hello everyone, I am trying to make this visual from a book by Edward Tufte where he talks about using a stripped down version of the box ...

How to do a Box Plot with mean instead of median and SD instead of quartiles?

Dear Statalisters, Please have a look at my data: Code: * Example generated by -dataex-. For more info, type help dataex clear input f...

Help with bootstrap in obtaining a standard error.

Hi Everyone: I think my problem has nothing to do with the data set and so I'm not showing a data example. In the bootstrap, I want a st...