This is a specialized package that fairly few of us are likely to have familiarity with, especialy when you have not followed the posting guide (below) and posted code and a reproducible example.
That said, a web search on R MODIS appeared to bring up relevant hits, including a MODIS tutorial. Have you tried that? Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Thu, Jun 22, 2017 at 2:12 PM, Caroline <glidd...@science.oregonstate.edu> wrote: > I am using MODIS Tools and am having a lot of difficulty troubleshooting my > code. > > I am a PhD student studying African buffalo in Kruger National Park, South > Africa. The study I am currently working on involves a herd of 200 African > buffalo caught every six months for 4 years. I am trying to use EVI and NDVI > to assess seasonal variation thus I would like mean EVI and NDVI for each > observation (each time each buffalo was captured). I have capture date, lat > and long for each observation. > > However, when using ‘250m_16_days_pixel_reliability’ as my quality control > band I keep getting the warning message: > > Warning in MODISSummaries(LoadDat = period, FileSep = ",", Product = > "MOD13Q1", : > Only single data point that passed the quality screen: cannot summarise > > When using ‘250m_16_days_VI_Quality’ as my quality control band I keep > getting the warning message: > > Error in QualityCheck(Data = band.time.series, QualityScores = > QA.time.series, : > QualityScores not all in range of MOD13Q1's QC: 0-3 > > I seem to get this message with all subsets of my data (I have tried running > all of my data at once and then just one data point at a time). I have also > tried using wider date ranges as well as wider size ranges (in case the pixel > reliability is poor within a certain area or time frame) but still get the > same messages. > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.