Rescales each token's time to the interval 0-1, treating the whole token as a
single segment. No landmarks are needed, so it works for monosyllabic data,
or to put many tokens on one common 0-1 axis. Adds a single column,
token_t01.
Usage
normalise_time_token(df, time, token)
Arguments
- df
Data frame with the time and token columns.
- time
Name of the raw time column (seconds).
- token
Name of the token-ID column (rows are grouped by it).
Value
df with token_t01 appended. Returned unchanged when the required
columns are absent.
