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.

Using STATA "mixed" command with autoregressive correlation of residuals for comparing time series of medical Google queries
Using STATA "mixed" command with autoregressive correlation of residuals for comparing time series of medical Google queries

Dear all,

thanks in advance.

I need an information.

I have 4 different time series (number of daily google clicks in the last 3 years for 4 different medical keywords).

I want to compare the 4 time series, i.e. estimate whether the variation in these 3 years has been different between the keywords.

I wonder if it makes sense to use a mixed model with autoregressive error correlation.

Something like:

mixed numberofclicks.. indepvars. . . || i.keyword:, residuals(ar 1, t(time))

Thank you very much!

BJ Data Tech Solution

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