Used to convert multiple split columns to two columns, Split_Time
and
Split_Distance
. Effectively a T&F specific version of
tidyr::pivot_longer
or base::reshape
flash_pivot_longer(df, varying)
a data frame or list of data frames containing event data from Flash Results
names of columns containing varying information (i.e. splits)
a version of df with split column values as Split_Time
and split
column names as Split_Distance