Description Usage Format Source Examples
Gross NDVI time series extracted from Spot Vegetation data.
The sites of interest are the South Asian study sites of CGIAR
Systemwide Livestock Programme.
A kml file containing the location of the sites can be found at the following path :
print(system.file("extdata/shape/SLP-SAs.kml",package="ndvits"))
1 |
SLPSAs_full is a list containing the 4 following objects :
full : a data.frame with 79 obs. of 397 variables
name
is a factor with levels Assandh, India
, Gharaunda
, Goganda,India
, Khansama, Bangladesh
, Phulbari, Bangladesh
, Sarada,India
.
All the other fields are the time series as extracted directly from the NDVI images.
period indicates the number of observations per year (period = 36).
Ystart indicates the starting year of the analysis (Ystart = 1999).
maxNDVI indicates way of coding the ndvi images (maxNDVI = 255).
Spot Vegetation data comes from : http://free.vgt.vito.be/
1 2 3 4 5 6 7 | data(SLPSAs_full)
ts = normNDVI(SLPSAs_full$full, SLPSAs_full$maxNDVI)
signal=STLperArea(ts, area = SLPSAs_full$full$name,
Ystart = SLPSAs_full$Ystart, period = SLPSAs_full$period,
SGfilter=FALSE)
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