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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Fixed effect regression with some conditions

Fixed effect regression with some conditions

Tuesday, February 26, 2019 Data Cleaning Data management Data Processing
Hello Stata experts, I am using the following data: Code: * Example generated by -dataex-. To install: ssc install dataex clear input...
Counting the # of factors when using "i.index"

Counting the # of factors when using "i.index"

6:36 PM Data Cleaning Data management Data Processing
I am running ols with individual fixed effects and year fixed effects by including "i.index" and "i.year". I cannot use ...
Create a var with some conditions in a same column

Create a var with some conditions in a same column

4:26 PM Data Cleaning Data management Data Processing
Hi, I want to create a var with some conditions in a same column. For example, This is the original data Id var1 01 c 01 d 02 m 0...
Stata update error: 'Could not move java to .old/' r(695)

Stata update error: 'Could not move java to .old/' r(695)

3:56 PM Data Cleaning Data management Data Processing
Greetings, I'm running Stata 15.1 on OSX. I really bought a new computer and (using OSX's 'migration assistant') migrated ...
ML estimation goes forever in longitudinal analysis

ML estimation goes forever in longitudinal analysis

3:26 PM Data Cleaning Data management Data Processing
Hi statisticians, I am running a saturated model (-mixed-) for preliminarily assess the effect of intervention for two time points (baseli...
LCA gsem output tables and intercept significance

LCA gsem output tables and intercept significance

2:31 PM Data Cleaning Data management Data Processing
Hello dear all, I was trying to understand the output tables especially the first one, mlogit model for C ( I have attached the output belo...
Significance levels of combined coefficients

Significance levels of combined coefficients

2:26 PM Data Cleaning Data management Data Processing
Dear Stata users, My regression looks as follows: y = x0 x1 x2 x3 x4 x5 Where x4 = x3 * dummy (indicating top quartile) and x5 = x3 * du...
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