Get the attributes of case or file.
getAttr(type = c("case", "file"),attrs = svalue(.rqda$.AttrNamesWidget),
subset)showSubset(x,...)
Type of attributes.
character vector, subset of attributes to retrieve.
when subset is not missing, return subset only.
an object from getAttr
Not used currently.
For 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
"FileAttr". For showSubset, no value is returned, the
side-effect is to change the file list or case list in the respective
widget.
You can add and modify the attributes of cases or files. getAttr
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
that in subset function.
# NOT RUN {
attr <- getAttr("case")
showSubset(subset(attr,attribute1==1)) ## assuming there is a variable
named atttribute1 in attr.
# }
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