tolist: To list
In ndvits: NDVI Time series extraction and analysis

Description Usage Arguments Details Value Author(s) References See Also Examples

Create a file containing a list with the directories of maps. This file can be used in Timesat or with the function ExtractFile.

1	tolist(ndvidirectory, region, Ystart, Yend, outfile = "list.txt", type = "VITO_CLIP")

`ndvidirectory`	path to the ndvi images folder (GeoTIFF files). Please note that paths to files in R can be specified with either "/" or "\\" in Windows OS and with "/" in UNIX OS.
`region`	name of the region, same as in the name of the ndvi images. Please refer to details section for more information on the nomenclature.
`Ystart`	starting year of the analysis (in four-digit format).
`Yend`	ending year of the analysis (in four-digit format).
`outfile`	name of the file where the list is saved (extenstion ".txt"). By default, `outfile`="list.txt".
`type`	type of nomenclature followed by the NDVI images : "VITO_CLIP", "VITO_VGT" or "GIMMS" (see details for more information). By default, `type` = "VITO_CLIP".

The format of the output file is as follows:
N
path\image1.tif
path\image2.tif
...
path\imageN.tif
with N the number of image files.
File names of image are in chronological order. It is important, for further utilisation, that ndvidirectory include the complete path to the file.

More about the variable type :
type = GIMMS : nomenclature from Global Land Cover Facility
[RE][YY][MMM][DDD].[SAT]-VIg.tif

RE : identifies the continent (AF for Africa,AZ for Australia and New Zealand, EA for Eurasia, NA for North America and SA for South America and Central America)
YY : the two last digits of the year
MMM : three-letter abbreviation of the month
DDD : identifies the composite period, 15a denotes the days 1-15 of the month, and 15b denotes the days from 16 to the end of the month.
SAT : identifies the satellite, NOAA-7, 9, 11, 14, 16, or 17 from which the data originated.

type = VITO_VGT : FreeVGT VITO's nomenclature
NDV_[YYYYMMDD]_[REGION]_Extract.tif

YYYY : identifies the year (four digits)
MM : identifies the months (two digits)
DD : identifies the date of the period : "01", "11" or "21" (10-day composite).
REGION : idendifies the region selected while extracting maps

type = VITO_CLIP : nomenclature after clipping the images in a particular region.
[REGION][YYYY]M[MM]P[D].tif

REGION : the region as entered while clipping data.
YYYY : identifies the year (four digits)
MM : identifies the months (two digits)
D : identifies the period (0, 1 or 2).

Nothing return.

Romain Frelat and Bruno Gerard

Jonsson, P. and Eklundh, L. 2004, Computers & Geosciences, TIMESAT a program for analyzing time-series of satellite sensor data, 30, 833–845

ExtractFile

#local variables
ndvidirectory=paste(system.file("extdata/VITO_Mzimba",
    package="ndvits"), "/", sep="")
region="Mzimba"
Ystart=2004
Yend=2009

#executing tolist
tolist(ndvidirectory, region, Ystart, Yend, 
    , outfile="MzimbaList.txt")