check_input: Check validity of input for the 3 main functions
In biostatUniBS/RDataXMan: Data Extraction Management

Description Usage Arguments Details Examples

Check validity of input for the 3 main functions

1	check_input(...)

...

Any input.

This function is needed because default values of input is overwritten to "" by Rcmdr.

{
RDataXMan:::check_input(NA)
RDataXMan:::check_input(NULL)
RDataXMan:::check_input(NULL, NULL)
RDataXMan:::check_input(NA, NULL)
RDataXMan:::check_input(NULL, NA)
RDataXMan:::check_input(NULL, "a")
RDataXMan:::check_input("a", NULL)
RDataXMan:::check_input(c("a", NULL, NA, "b", ""))
}