For quick reference, the commands are: Age standardization within sex: proportion msvi, stdize(ageGrp) stdweight(per) over(sex) — per = percent of population in age group calculated… Read More »Age-Sex Direct Standardization in Stata
The Cochran-Armitage trend test can be used to assess time trends in prevalence of outcomes across repeated cross-sectional surveys. Sample size Calculation in Stata Statistics… Read More »Tests for Trends in Repeated Cross Sectional Surveys
Commands used – xtmixed (older versions, aslo used in Sophia Rabe-hesketh book) or mixed (Stata 15 and newer). By default, xtmixed includes a random intercept… Read More »Multi-level Model in Stata – basic syntax for ‘mixed’
Stata stores and saves date and time as numeric intervals referenced from 1 Jan 1960 (01jan1960 = 0) When the variable is time, one should… Read More »Stata Date – Time calculations
I have written a small Stata program, that does frequency analysis of Likert Scale items and outputs the results as a HTML file The program… Read More »Likert Scale Frequency analysis HTML Output
When you have a scale with Likert scaled responses – example the EU-HLS-Q47 Items: q01-q47; Responses: 1-5 where 5 == Don’t know Calculate number of… Read More »Likert Scale Score Calculation in Stata
A mix of these commands can be really helpful by generating HTML files as outputs. I have started prefering using htput command by Lloren Quint… Read More »HTML Output in Stata
Install dependencies Untar the files in /usr/local/stata15. Install Stata and add your license information. Add the directory to path Log out and re-login to initialize… Read More »Stata 15 installation on Ubuntu 18.04
This is a code I had written for factor congruence analysis based on the formula that I was provided. It calculates the congruence for multiple… Read More »Factor Congurence Calculation in Stata
EpiData is commonly used by researchers all over the world for data entry. Stata is used commonly for data analysis. EpiData can export to Stata… Read More »EpiData to Stata