Time-varying aggregation functions
tv_count(value, ...)tv_any(value, ...)
tv_lvcf(value, datetime, ...)
tv_ts(datetime, current_time, ...)
tv_min(value, ...)
tv_max(value, ...)
tv_mean(value, ...)
tv_median(value, ...)
tv_sum(value, ...)
A scalar, indicating the corresponding aggregation over value or datetime.
A vector of values
Other arguments (not used at this time)
A datetime
The current grid row's time