Invalid Syntax while looping

hello, i dont know why stata keeps me showing invalid syntax in this loop: foreach x of p524a1_14 p524a1_15 p524a1_16 p524a1_17 p524a1_18{...

Survival Analysis - different outputs

Hello everyone, I am trying to do survival analysis on 2018 Nigeria Demographic and Health Survey Data. The data has 33,924 observations,...

Arranging bars of graph bar

Hello community. I am producing a graph with Stata. Here is the output : Array And here is the code Code: graph bar var1 var2 var3 [aw=w...

Reshape numerous variables

I have a vector of numerous variables (>100) that I need to reshape. Basically the format of the variables are the following. Country ...

Stratified sample with probability proportional to size

We have a total of 908 communities (each community has a number of households) which are located in the sphere of influence of roads / highw...

Combining Two Similar Variables To be in one row

Hi All, I have the following 2 variables that serve the same purpose and I'm trying to generate one variable for both. Schoolfees1 has...

quarterly returns

Hi To calculate quarterly index returns from monthly index returns starting from the first month of the quarter to the third month of the...

The "replace" option to the table command in Stata 16 is on longer available in Stata17; is there an alternative in Stata 17?

In Stata 16 you could code: table ..., replace to replace the data in memory with the results produced by the table command. Is there an...

Kleibergen Paap F statistic test in xtdpdgmm

Hi everyone, I'm currently working with xtdpdgmm for my thesis but I'm confused how to get Kleibergen Paap F statistic test for weak...

how to do instrument strength test for non-i.i.d error (more than one endogenous variables)

Dear all, I wish to test instrument strength for the non-i.i.d error, and I have 3 endogenous variables. I noticed that the STATA command ...

How do I create a new variable which counts number of variables that satisfy a given condition?

Hallo Statalist, I am new here. I have a dataset of different towns with monthly temperatures over a 10-year period (i.e. 120 months). The...

create v3 which shows number of v1 that share the same v2 value

Hi, My dataset has 2 variables that I am interested in seeing the relationship between. v1 is 'unique_attend' which creates a un...

coefplot plotting results from categorical variable

Dear all, I would like to use coefplot to compare the coefficients from different models and categorical variables. I am using different d...

Labels of restricted categories appearing in graph when using -by()-

I want to graph tobacco use for couples in different value groups. While the values variable has 12 categories, I only want to graph the fir...

What fixed effects I should add when using triple difference in firm level?

In my difference-in-difference setting (double diff), I examine the impact of anticorruption laws on firms' asset growth of all countrie...

Square CSR: a brief overview

Square CSR programs and initiatives mainly focus on four key priority areas – Climate Action, Social Impact, Employees and Culture, and Corp...

Is there any package for stacked event-by-event estimates ?

I am reading a paper of Cengiz, 2019 about using stacked event-by-event estimates for the Difference-in-Differences settings. This is a go...

What is the difference between "stack" and "pca" ?

From my understanding, it seems that pca and stack syntaxes are all about suppressing two or more variables (similar characteristics) to o...

Trying to open shapefile but Stata looks for .dbf file

Hello, I am trying to open a shapefile under the name "pga.shp" that I downloaded from the US Geological Survey. I am using shp2...

2SLS: Interpretation of Results

Hi - I am working with panel data (US industrials, 2000-2019) and am researching the impact of firm geographic diversification (GSD) on firm...

How to list all unique values based on value of another variable?

Hi all, I am conducting a cross-country analysis. I have a variable named developed has the value of 1 if this country is a developed coun...

Square Ecosystem: a brief overview

Square ecosystem represents a growing ecosystem of financial services. Ecosystem of Square can be divided into two groups: seller ecosystem ...

Square McKinsey 7S Model

Square McKinsey 7S model is intended to illustrate how seven elements of business can be aligned to increase effectiveness. The framework di...

Square Value Chain Analysis

Value chain analysis is a strategic analytical tool that can be used to identify business activities that create the most value. The framewo...

What is the ideal way to keep only needed variables in panal dataset?

I have around 40 variables in my dataset but I actually only use around 8 of them. I assume that keeping 8 variables is better than keeping ...

How to delete observation if one of these variables missing?

A common practice to reduce the size of the panel sample (to reduce the time that Stata process the data) is to delete the observation where...

Confirmatory factor analysis

Hi! Just wonder in the computation of confirmatory factor analysis, what input is putting in the formula in STATA, correlation matrix or cov...

Regression with multiple dependent variables

Hi, I am trying to run a set of logit models using the following formula, but it is not working. Can you please suggest what is not correc...

Comparing two string variables and extract difference into a new variable

Hi, I am trying to tackle the problem of comparing text between two string variables and identify (and extract) “updated” parts. Strin...

Looping to create marginsplots for different moderators but how to get the same y-axis?

Hi everybody I am researching how outsourcing affects employees in terms of income, employment, and benefits and, next, how these effects ...

Reference on manipulation of locals/macros/lists

I would like to learn more how to work with locals to store objects and then add, remove things, manipulate them according to criteria. I lo...

cmmixlogit does not converge

Hi, I am facing slight issues with the cmmixlogit command, which worries me a bit. I am working with a discrete choice experiment, in whi...

Surveys and lists.

Hi there, Can you please help me with how can I do this in STATA? My data set: Several waves of data from 60 countries. Around 3000 respo...

problem in dummy approach-interaction terms

Dear I use the panel regressions using augmented mean group (AMG) method, I add the dummy variables and interact it with my independent ...

Select all variables based on suffix

I want to select all variables that contain a certain suffix to store them in a macro. Any suggestions? MWE: Code: sysuse auto.dta ds ...

Using World Values Survey Wave 7 in Stata

Hello, I am getting started with using World Values Survey Wave 7 (WVS-7) in Stata. Is there anyone who has used WVS-7 in Stata ? I am inter...

Creating a variable with several condition using the foreach loop

Hello Everyone, I am trying to create a variable ,"grad_AA", that will determine respondents' graduation year using the vari...

error using svy bootstrap with self-written program

Dear list, I want to calculate bootstrapped standard error (and pvalue) of the difference between two correlation coefficients. In my con...

Sensitivity analysis following mediation with sureg

Greetings, I'm running Stata 15.1 on a Mac OS and working with experimental data. I've been conducting tests of mediation with the...

How to replace the value of a variable by the most frequently occured value

Hi, I have a dataset looks like this: Code: * Example generated by -dataex-. To install: ssc install dataex clear input str2 id str8 l...

Find number of children, age at birth for women using identifiers

Hi: I am working with a dataset that looks something like this: HHID PID MID Rel_Head Age 10 1 3 1 56 10 2 . 2 48 10 3 . 7 75 10 4 ....

Square Porter’s Five Forces Analysis

Porter’s Five Forces analytical framework developed by Michael Porter (1979)[1] represents five individual forces that shape an overall exte...

Square Marketing Communication Mix

Square marketing communication mix comprises communication channels to communicate the marketing message to the target customer segment. The...

Square Segmentation, Targeting & Positioning

Square segmentation, targeting and positioning refers to a series of consecutive marketing efforts. It comprises the following stages: 1. Se...

endogeneity test after xtologit and xtoprobit

Hi all, please I need help with testing for endogeneity after xtologit and xtoprobit. Firstly, how do I check for presence of endogeneity? S...

data annualization

Dear all, May I have your guidance please on the following: I have 5 subjects with 5 observations over 15 months period (Day0 ,Day 30, Mon...

How to find duplicate across variables

Hello, I am relatively new to stata, but I have encountered a problem of not being able to find duplicates across variables. I have a tabl...

rate of admission in NRD

hello all i'm working on NRD I am looking to compare rate of hospitalizations before and after certain procedure. The way it was done ...

Simple graphing issue

I am tring to create a simple bar graph, but I cannot get the categories on the x axis to display as I would like. I want them to be smaller...

The critical thinking about the "staying forever" in Difference-in-Differences estimator of differential timing setting?

When dealing with the differential timing DiD setting, we may apply some modern approaches like Callaway, 2020 , Borusyak, 2021 (I focus mo...

Unexpected behavior of the egen function median()

Hello all, This is my first post but I've read up on the FAQ so I hope it will be acceptable. To give some context, I'm working wi...

Response surface analysis (RSA)

Hi! Does STATA support RSA analysis and the surface plotting?

Screeplot of eigenvalues from the reduced correlation matrix

I assume that STATA's screeplot command prints the eigenvalues from the sample correlation matrix. However, I want to plot a scree test ...

Generate difference variable between 2 digits sectors and relevant 3 digits sub-sectors of NACE Rev.2

Dear all, I have a data set consisting of Inflation rates relating to 2-,and 3- digit sectors of Nace Rev.2 (EU statistical classification...

Create a Variable in stata that is a value minus it's last month value

Hi all, I put some data below, but I have a question about making a varialbe that is it's value minus the value of the last month. I h...

counting days between date and another date

Dear all, I have 5 subjects who had 5 visits at different dates, I want to create a new variable that has the number of days elapsed since ...

Automating meta-analyses code for several outcomes using metaan

Hi, I have data for 40 outcomes for 2 studies. I am wondering if there is a way to automate this rather than do this manually for each out...

Predict and margins after melogit with interactions

Hello Statalisters, I am running a mixed effect model in Stata 15.1 using melogit, with weights. I need to calculate the predicted values o...