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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merge when value of one variable in dataset 1 matches either value of two variables in dataset 2

merge when value of one variable in dataset 1 matches either value of two variables in dataset 2

Tuesday, March 1, 2022 Data Cleaning Data management Data Processing
Hi, I'm trying to merge two datasets by phone number. In dataset 1, each observation only has one phone number (so just one phone numbe...
Regression discontinuity, revising/improving code from version 8.2 for version 15.1

Regression discontinuity, revising/improving code from version 8.2 for version 15.1

5:23 PM Data Cleaning Data management Data Processing
I came across a clear introduction to regression discontinuity in chapter 16 of Khandker, Shahidur R., Gayatri B. Koolwal, and Hussain A. Sa...
Kaplan Meyer Curve

Kaplan Meyer Curve

3:25 PM Data Cleaning Data management Data Processing
Hello, I am working on a survival analysis paper and one of the reviewers has asked me to add censored values below the curve sts graph, ...
Type mismatch

Type mismatch

3:25 PM Data Cleaning Data management Data Processing
I keep getting a 'type mismatch' error and I'm stumped. All feedback would be greatly appreciated! egen ICD10 = group(I10_DX1...
impulse response functions modifications

impulse response functions modifications

3:25 PM Data Cleaning Data management Data Processing
Hello, I was wondering if there is a way to modify the impulse magnitude in the impulse response fucntions. Can I select or set the value I ...
Error with eventdd

Error with eventdd

2:23 AM Data Cleaning Data management Data Processing
Hi all, First of all, here are my data: Code: input float(count_appr_compbased time_to_treat) long ONETSOCCODE float(yearmonth event_t...
Xtset for Same "Stage" but Different Time

Xtset for Same "Stage" but Different Time

1:23 AM Data Cleaning Data management Data Processing
Dear all, I have a company dataset. Each company has two-stage (e.g., stage = 0 or stage =1). However, the times of the two stages are dif...
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