R: Update key and index for a tsibble

update_tsibble {tsibble}

R Documentation

Update key and index for a tsibble

Update key and index for a tsibble

update_tsibble(x, key, index, regular = is_regular(x), validate = TRUE,
  .drop = key_drop_default(x))

`x`	A tsibble.
`key`	Unquoted variable(s) that uniquely determine time indices. `NULL` for empty key, and works with tidy selector (e.g. `dplyr::starts_with()`).
`index`	A bare (or unquoted) variable to specify the time index variable.
`regular`	Regular time interval (`TRUE`) or irregular (`FALSE`). The interval is determined by the greatest common divisor of index column, if `TRUE`.
`validate`	`TRUE` suggests to verify that each key or each combination of key variables leads to unique time indices (i.e. a valid tsibble). If you are sure that it's a valid input, specify `FALSE` to skip the checks.
`.drop`	If `TRUE`, empty key groups are dropped.

Unspecified arguments will inherit the attributes from x.

library(dplyr)
pedestrian %>% 
  group_by_key() %>% 
  mutate(Hour_Since = Date_Time - min(Date_Time)) %>% 
  update_tsibble(index = Hour_Since)

[Package tsibble version 0.8.2 Index]