Get the attributes of case or file.
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Type of attributes.
character vector, subset of attributes to retrieve.
when subset is not missing, return subset only.
an object from
Not used currently.
You can add and modify the attributes of cases or files.
returns this attributes as a data frame.
Sometimes, you only want to show a subset of files or cases according to
their attributes. You can do the subset operation of the result from
getAttr and pass it to
showSubset, or you can pass a
subset argument to
GetAttr. The meaning of subset is the same as
getAttr, when type is "case", it is a data frame with class
of "CaseAttr"; when type is "file", it is a data frame with class of
showSubset, no value is returned, the
side-effect is to change the file list or case list in respective
All the variables in the data frame is of class "character", you need to convert to suitable class when conducting statistical analysis.
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