spectrolab (version 0.0.18)

try_keep_txt: Wrap function to try to keep text

Description

Function operator returning a function f that tries to keep text.

Usage

try_keep_txt(f)

Value

modified function f (f').

Arguments

f

function to be applied

Author

Jose Eduardo Meireles

Details

try_keep_txt takes a function f as argument, typically a mathematical operation such as mean, median, etc. and returns a modified version of it that will try return a string of unique values in case function f emits a warning. Useful when aggregating over spectral metadata that has both numeric values (which you want to aggregate) and text values, which you want to keep.

Examples

library(spectrolab)
g = try_keep_txt(mean)
g(c(1, 2))
g(c("a", "b"))