Description Usage Arguments Value See Also Examples
intsvy.reg performs linear regression analysis (OLS) for an observed depedent variable (NOT for plausible values)
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y |
Label for dependent variable. |
x |
Data labels of independent variables. |
by |
The label for the grouping variable, usually the countries (i.e., by="CNTRYID"), but could be any other categorical variable. |
data |
An R object, normally a data frame, containing the data. |
export |
A logical value. If TRUE, the output is exported to a file in comma-separated value format (.csv) that can be opened from LibreOffice or Excel. |
name |
The name of the exported file. |
folder |
The folder where the exported file is located. |
config |
Object with configuration of a given study. Should contain the slot 'prefixes' with prefixes of filenames with the student, home, school, and teacher data. |
intsvy.reg returns a data frame with coefficients, standard errors and t-values. If "by" is specified, results are reported in a list. If the "by" argument is set, then the returning object is of the class "intsvy.reg" with overloaded function plot().
pisa.reg, pirls.reg, timss.reg
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