extractdays: Extracts the rows of a matrix corresponding to the requested...

Description Usage Arguments Value Note

Description

Extracts the rows of a matrix corresponding to the requested days (expressed as dates YYYY-MM-DD) given the date (origin) of the first row

Usage

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extractdays(data = array(1:ndim_max, dim = c(ndim_max, 1)),
  ndim_max = 1e+05, when = "1990-1-1", origin = "1961-1-1", nday = 1)

Arguments

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

desired dates for which the data are requested

origin

date corresponding to the first row of data

nday

(optional) number of days since when to extract the data

Value

a matrix containing the requested rows

Note

It uses julian



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