rgf.create: Functions to read and write raster group files.

In r2dRue: 2d Rain Use Efficience model

Description

Raster group files are essential elements for managing information on time-series in r2dRue. They are simply text lists containing the names of the files of a given time-series. Because names in such lists follow many times regular and sequential patterns, these functions may facilitate their creation.

Usage

rgf.read(inFl)
rgf.create(prefix,suffix='',ini,fin=ini,monthini=1,output)

Arguments

inFl	Filename of the raster group file to be read.
prefix	Prefix for the output filenames.
suffix	Suffix for the output filenames.
ini	Start year.
fin	End year.
monthini	Number-order of the start month (integer in the 1 to 12 range).
output	Filename to be written to disk.

Details

rgf.read reads a raster group file and returns a character vector with the read values.

rgf.create is useful to generate sequences of file names that contain an indicator of the month and year. For example, take the sequence:

Ndvi199001.tif, Ndvi199002.tif ... Ndvi199012.tif, Ndvi199101.tif, Ndvi199102.tif ...

In it, a prefix ("Ndvi") is concatenated to a sequence of years (1990,1991) and months (01,02,...,12), and it ends with a suffix (".tif").

Value

Rgf.read returns a character vector with the filenames in the rgf file.

Rgf.create returns a character vector. If an output file name parameter is specified, then the list is writen to disc.

Author(s)

Alberto Ruiz, [e-mail]

Examples

rgf.create('ndvi','.rst',1970,1975,output='ndvi.rgf')
ndvifiles=rgf.read('ndvi.rgf')

r2dRue documentation built on May 2, 2019, 4:50 p.m.