IPSUR.Utilities: IPSUR Utility Functions
In RcmdrPlugin.IPSUR: An IPSUR Plugin for the R Commander

Description Usage Arguments Details Author(s) References

These functions support writing additions to the IPSUR package, and were patterned after their Rcmdr equivalents. Additional R code can be placed in files with file type .R in the etc subdirectory of the package. Add menus, submenus, and menu items by editing the file menus.txt in the same directory.

checkMultiLevelFactors(n=1)
listMultiLevelFactors(dataSet=ActiveDataSet())
MultiLevelFactors(names)
multiLevelFactorsP(n=1)

`dataSet`	the quoted name of a data frame in memory.
`names`	optional names to be stored.
`n`	number of variables to check for.

There are several groups of functions exported by the Rcmdr package and documented briefly here. To see how these functions work, it is simplest to examine the dialog-generating functions in the Rcmdr package.

Checking for errors: The function checkMultiLevelFactors checks for the existence of objects and writes an error message to the log if it is absent (or insufficiently numerous, in the case of different kinds of variables).

Information: The following function returns vectors of object names: listMultiLevelFactors

G. Jay Kerns gkerns@ysu.edu

T. Lumley (2001) Programmer's niche: Macros in R. R News, 1(3), 11–13.

RcmdrPlugin.IPSUR documentation built on May 2, 2019, 2:43 a.m.