extractmonths: Extracts the rows of a matrix corresponding to requested...
In RMAWGEN: Multi-Site Auto-Regressive Weather GENerator

Description Usage Arguments Value Note Author(s) See Also Examples

Extracts the rows of a matrix corresponding to requested months of a year given the date (origin) of the first row

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extractmonths(data = array(1:ndim_max, dim = c(ndim_max, 1)),
  ndim_max = 1e+05, when = c("Dec", "Jan", "Feb"), year = NULL,
  origin = "1961-1-1")

`data`	an input data matrix where each row corresponds to a daily record
`ndim_max`	maximum (integer) number of rows in `data` where to find `when`. Default is 100000 and works if `data` is missing.
`when`	character vactor of months for which the data are required. It must be a subset of `c("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")`
`year`	year(s) when data must be extracted
`origin`	date corresponding to the first row of `data`

a matrix containing the requested rows

It uses months and julian

Emanuele Cordano, Emanuele Eccel

extractdays

extractmonths()

data(trentino)
dates <- sprintf("%02d-%02d-%02d",TEMPERATURE_MAX$year,TEMPERATURE_MAX$month,TEMPERATURE_MAX$day)
origin <- dates[1]
out <- extractmonths(data=TEMPERATURE_MAX,origin=origin)