Common column naming patterns for analytical data — measure_column

Named list of regex patterns for detecting measurement column types. Used by measure_identify_columns() for auto-detection. Users can extend or modify these patterns and pass them to detection functions.

Usage

measure_column_patterns

Format

Named list with regex patterns:

wavenumber: wn_ prefix for IR wavenumber (cm^-1)
wavelength: nm_ prefix for wavelength (nm)
retention_time: rt_ prefix for chromatography retention time
mz: mz_ prefix for mass-to-charge ratio (MS)
ppm: ppm_ prefix for NMR chemical shift
channel: ch_ prefix for numbered channels
generic: x_ prefix for generic/unknown axis

Examples

# View default patterns
measure_column_patterns
#> $wavenumber
#> [1] "^wn_"
#> 
#> $wavelength
#> [1] "^nm_"
#> 
#> $retention_time
#> [1] "^rt_"
#> 
#> $mz
#> [1] "^mz_"
#> 
#> $ppm
#> [1] "^ppm_"
#> 
#> $channel
#> [1] "^ch_"
#> 
#> $generic
#> [1] "^x_"
#> 

# Create custom patterns
my_patterns <- c(measure_column_patterns, list(custom = "^my_prefix_"))