BJ Data Tech Solution

Specialized on Data processing, Data management Implementation plan, Data Collection tools - electronic and paper base, Data cleaning specifications, Data extraction, Data transformation, Data load, Analytical Datasets, and Data analysis. BJ Data Tech Solutions teaches on design and developing Electronic Data Collection Tools using CSPro, and STATA commands for data manipulation. Setting up Data Management systems using modern data technologies such as Relational Databases, C#, PHP and Android.

Tuesday, June 30, 2020

How to declare "string" condition in If condition

Hello,

I am newbie in Stata and I have a problem with stata when I try to declare If condition.

In my DB, I have "country" variable which has "Germany" values but when I run the regression:

"oprobit adl iadl depression_scale chronicw2 if country==Germany". It said that "Germany not found"
or
" oprobit adl iadl depression_scale if "country"=="Germany" ". It said that "no observations"

How can I fix it?

Thank you

BJ Data Tech Solution

Tuesday, June 30, 2020

How to declare "string" condition in If condition

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