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.

What is the difference between corr() and cov() with panel data?
What is the difference between corr() and cov() with panel data?

When is it more appropriate to use cov() vs corr() for the residual structures for panel data?

Example Code:

xtpoisson Outcome CovariateA##CovariateB CovariateC CovariateD, exposure(area) corr(exchangeable)

xtnbreg Outcome CovariateA##CovariateB CovariateC CovariateD, exposure(area) corr(independent)

mepoisson Outcome CovariateA##CovariateB CovariateC CovariateD, exposure(area) || GroupID:, covariance(unstructured)

menbreg Outcome CovariateA##CovariateB CovariateC CovariateD, exposure(area) || GroupID:, covariance(unstructured)

glm Outcome CovariateA##CovariateB CovariateC CovariateD, exposure(area) vce(robust) family(gamma) link(identity)

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What is the difference between corr() and cov() with panel data?

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Home / Data Cleaning / Data management / Data Processing / What is the difference between corr() and cov() with panel data? What is the difference between corr() and cov() with panel data?

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