trs: Resample time series

In GlossyBoat/foqat: Field observation quick analysis tookit

Description

Resamples time series, and returns complete time series with new time resolution. (wind data is acceptable)

Usage

trs(
  df,
  bkip,
  colid = 1,
  st = NULL,
  et = NULL,
  na.rm = TRUE,
  wind = FALSE,
  coliws = 2,
  coliwd = 3,
  cpms = TRUE
)

Arguments

df	dataframe of time series.
bkip	new resolution breaking input of time series, such as '1 hour'.
colid	column index for date-time. The default value is 1.
st	start time of resampling. The default value is the fisrt value of datetime column.
et	end time of resampling. The default value is the last value of datetime column.
na.rm	logical value. Remove NA value or not?
wind	logical value. if TRUE, please set coliwd, coliws.
coliws	numeric value, column index of wind speed in dataframe.
coliwd	numeric value, column index of wind direction (degree) in dataframe.
cpms	logical value. Compensate the insufficient amount of the millisecond bit for datetime column.

Details

If you have wind data (wind speed, and wind direction in dgree), please set 'wind' as 'TRUE', and set values for 'coliwd' and 'coliws'.

Value

a dataframe which contains a time series with a new time resolution.

Examples

trs(met, bkip = "1 hour", st = "2017-05-01 00:00:00", wind = TRUE, coliws = 4, coliwd = 5)

GlossyBoat/foqat documentation built on Jan. 18, 2021, 11:31 p.m.