[R] MODISTools Help

[Bert Gunter]

1. You should always cc the list unless there is a clear reason not to.

2. You still have failed to follow the posting guide: You say you have
difficulty troubleshooting your code, but you have shown us no code.
You got an error message that seems explicit, but with neither code
nor data, I do not know whether anyone can make sense of it. In any
case, I certainly cannot.


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 4:41 PM, Caroline
<gliddeca at science.oregonstate.edu> wrote:
> Hi Bert,
>
> I have spent a lot of time searching the web for my error message and have gone through multiple tutorials. I have not found anything relevant to my error message which is why I posted on R-help.
>
> Caroline
>
>> On Jun 22, 2017, at 4:38 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
>>
>> 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
>> <gliddeca at 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 at 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.
>