Shifts known values to the nearest equidistant timestamp and fills in any
missing timestamps with NA values. An additional binary column named
<column to impute>_imp is added where 1 represents an unknown value
and zero represents a known value.
ts_inflate(data, ts_col, col_to_imp, dt)A data frame containing columns ts_col and
col_to_imp.
The name of the timestamp column.
The name of the column to impute.
The expected time between consecutive timestamps, in minutes.