I want to download Modis product MOD13Q1 to use the Scientific Data Sets (SDS) layers of "250m_16_days_EVI", "250m_16_days_pixel_reliability". MODISTools library in R software provides the capability to download the Modis data from LP DAAC data center. I have read the Using MODISTools pdf guide by Sean Tuch which provides the basic understanding of how to use the library to subset the MOD13Q1 data layers by using the points location. One can install the library by giving the command library("MODISTools") and vignette("UsingMODISTools") provides the Sean Tuck guide to use the tools to download or subset the modis data. The following subset function which i want to use:
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MODISSubsets(LoadDat = modis.subset, Products = "MOD13Q1", Bands = c("250m_16_days_EVI", "250m_16_days_pixel_reliability"), Size = c(1,1))
Here LoadDat = modis.subset is the data frame of latitude and longitude points in decimal format and according to Size = c(1,1) parameter that is used to extract the 1 Km left and 1 Km right from the focal point as extent. But I want to used the extent of whole study area like
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