I want to list all files in a directory that met certain conditions (date and currency). So with only one condition the argument pattern
in list.files
works well:
file.ls <- list.files(path='~/DATA/PiP/Curvas/',pattern='20130801')
For multiple conditions I've tried:
file.ls <- list.files(path='~/DATA/PiP/Curvas/',pattern=c('20130801','USD'))
But had the same result as the first one. Is there a way to have multiple criteria in pattern
argument of list.files
?
file.ls <- list.files(path='~/DATA/PiP/Curvas/',pattern="20130801|USD")