Help: contvert multiband 16 bit tif to 8 band tif
Dear, Does anyone know how to convert multiband (5 bands) 16 bit unsigned integer (tif file) to 8 band tif with R? Help will be appreciated. Thanks Zia
From: r-sig-geo-bounces at r-project.org <r-sig-geo-bounces at r-project.org> on behalf of Tomislav Hengl <hengl at spatial-analyst.net>
Sent: Wednesday, May 14, 2014 6:20 AM
To: r-sig-geo at r-project.org
Subject: Re: [R-sig-Geo] Spatio temporal Kriging
Sent: Wednesday, May 14, 2014 6:20 AM
To: r-sig-geo at r-project.org
Subject: Re: [R-sig-Geo] Spatio temporal Kriging
Technically speaking it is OK to predict in future (prepare a stfdfObj object with spacetime coordinates in future, then run krigeST), but I would assume that the prediction variance will be large (well this depends on your variogram / temporal nugget and temporal range of spatial autocorrelation). Consider for example the prediction models for weather in the Netherlands: http://www.knmi.nl/waarschuwingen_en_verwachtingen/ensemble.html As you get further from the measurement horizon, the confidence limits become wider and wider. Also, I do not know how much is krigeST applicable to non-Gaussian data. PS: Sending more focused questions that refer to some specific line in the code / or specific topic of broad interest are usually more efficient on R-sig-geo (see: "Do your homework before posting" in http://www.r-project.org/posting-guide.html). T. (Tom) Hengl Url: http://www.wageningenur.nl/en/Persons/dr.-T-Tom-Hengl.htm Network: http://profiles.google.com/tom.hengl Publications: http://scholar.google.com/citations?user=2oYU7S8AAAAJ On 9-5-2014 12:55, Franklin Tchakounte wrote: > Hello > > i am exercising (would like) to use spatiotemporal kriging to predict > in the future the rate of populations in neighborhoods in towns. I > have values for population rate in 2011, 2012, 2013, 2014 for many > neighbourhoods and i need to know the corresponding values in 2015 and > 2016 with the spatio temporal kriging using R. > I would to know (if possible) how to apply extrapolation (spatio > temporal kriging) with R from the beginning to the end. > > i have attached the actual R code with the help of Graeler and data file. > > Thank you a lot > > Franklin > > > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo at r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > _______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo