Replaces the date-times in columns with integer offsets from timestamp, and replaces timestamp
with the integer offset from the minimum timestamp per group identified by by.
Usage
dataset_normalize_timestamps(
dataset,
timestamp_cols = grep("timestamp", colnames(dataset), value = T, ignore.case = T),
by = "group_customer_no",
...
)
Arguments
- dataset
data.table of data to normalize
- timestamp_cols
character vector of columns to normalize; defaults to all columns with a name containing the word timestamp
- by
character column name to group the table by
- ...
not used
Value
normalized data.table