I uploaded many csv files to combine into one big table That new table has a column in format hhmmss with time durations, I want to transform that time duration into seconds. I'm stuck on how to do it.
If I use class on that column, it tells me "hms" "difftime" If I try to calculate the mean of that column, I get "Time difference of NA secs" If I try to use period_to_seconds, I get **trying to get slot "minute" from an object (class "hms") that is not an S4 object **