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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Merging two data sets using joinby but with capitol and lower case differences

Merging two data sets using joinby but with capitol and lower case differences

Wednesday, December 26, 2018 Data Cleaning Data management Data Processing
Dear Statalisters, I need some help because I am trying to merge two databases using Code: joinby firms , but I have a problem because...
Statistical Significance using Burgstahler & Dichev (1997)

Statistical Significance using Burgstahler & Dichev (1997)

11:27 AM Data Cleaning Data management Data Processing
Hi I want to apply the methodology of Burgstahler & Dichev (1997) to calculate the statistical significance. It reads as under: ...
Merging two data sets

Merging two data sets

10:17 AM Data Cleaning Data management Data Processing
I wanted to merge two data sets. There are 99 variables and 315,717 observations (size: 56,513,343) in 1 st data set (master). It (MORG dat...
Generating predicted probabilities of random effects after melogit

Generating predicted probabilities of random effects after melogit

9:57 AM Data Cleaning Data management Data Processing
Hello, My question is on estimating coefficients for random effects in mixed effect models. I am building a 3 level mixed effect model in ...
foreach num in numlist - reports error (numlist not found) // what's my syntax mistake?

foreach num in numlist - reports error (numlist not found) // what's my syntax mistake?

9:47 AM Data Cleaning Data management Data Processing
Hello, I would like to run the following loop but I get the message: Code: femnumlist not found r(111); The loop should generate new...
Exporting Mlogit Marginal Effects to Excel

Exporting Mlogit Marginal Effects to Excel

7:17 AM Data Cleaning Data management Data Processing
I am trying to export marginal effects output for mlogit into stata. the commands i used are as follows: qui mlogit loan_source ib5.asset_...
Generating variables in migration panels

Generating variables in migration panels

3:58 AM Data Cleaning Data management Data Processing
Hi All, This is my first post, so excuse me breaking any rules/conventions. I'm trying to generate a set of variables from German mi...
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