Get data limiting function to use in rglactions as 'trans_fun' to transform data. This is typically used to limit the colorbar in a plot to a certain range. This is similar to clip.data, but uses absolute values instead of percentiles to clip.
Usage
limit_fun_na(vmin, vmax)
Arguments
vmin
numerical scalar, the lower border. Data values below this will be set to `NA` in the return value.
vmax
numerical scalar, the upper border. Data values above this will be set to `NA` in the return value.
Value
a function that takes as argument the data, and clips it to the requested range. I.e., values outside the range will be set to `NA`. Designed to be used as rglactions$trans_fun in vis functions, to limit the colorbar and data range.