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.

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time dummies always should be included in iv part in xtabond2?

time dummies always should be included in iv part in xtabond2?

Saturday, April 1, 2023 Data Cleaning Data management Data Processing
I am now trying to implement xtabond2 for my panel data set spanning from 1998 to 2020. The issue that I have regarding xtabond2 routine is ...
Generating a variable that counts the appearance of a particular value in rolling bases (across rows)

Generating a variable that counts the appearance of a particular value in rolling bases (across rows)

11:23 PM Data Cleaning Data management Data Processing
Dear Statalist, I am having some difficulties in creating a variable I need. I would greatly appreciate it if you could give me any s...
Balance tests in a loop?

Balance tests in a loop?

8:23 AM Data Cleaning Data management Data Processing
Hello. I am currently trying to run balance tests in a dataset with respondents from 8 countries. The country variables are binary dependi...
loop in parallel with tokenize, comma as delimiter

loop in parallel with tokenize, comma as delimiter

7:23 AM Data Cleaning Data management Data Processing
I'm currently using Stata for data management. Inspired by Nick Cox' (2021) paper "Speaking Stata: Loops in parallel", I...
Bug: encoding ID string with tens of millions of unique IDs

Bug: encoding ID string with tens of millions of unique IDs

5:23 AM Data Cleaning Data management Data Processing
I have found a bug in Stata 17 MP, where my dataset has hundreds of millions of observations and tens of millions of unique ID strings (six ...
Question about meologit

Question about meologit

5:23 AM Data Cleaning Data management Data Processing
Hello! I attempting to do a mixed model ordinal logistic regression with level 2 and level 1 variables (country and individual wide varia...
Batch mode: "The do file was interrupted. Would you like the batch job to continue?"

Batch mode: "The do file was interrupted. Would you like the batch job to continue?"

3:23 AM Data Cleaning Data management Data Processing
In reply to Jason A. Thompson's question from 2007-11-20 : After upgrading to Stata 10, batch jobs executed from Textpad result in ...
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