[R-sig-Geo] How to resample a map using the statistical mode of class to fill the new pixel

[Isaque Daniel]

Hi Mel!!
Thanks for the contribution, but my problem is to do that using the reference grid a MODIS image to compute value of new image using the Modal function.

The perfectly solution would be a resample raster function with the mode or modal of values can be used.

Best
Isaque


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Eng. Agr. Isaque Daniel Rocha Eberhardt
Mestre em Sensoriamento Remoto - Instituto Nacional de Pesquisas Espaciais (INPE)
Doutorando em Transportes - Universidade de Bras??lia (UNB)
Mobile: +55 (061) 99015658
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Agronomist engineer
Master in Remote Sensing - National  Institute for Space Research (INPE) - Brazil
PHD Student in Transport - Bras??lia University (UNB)


________________________________
De: Bacou, Melanie <mel at mbacou.com>
Enviado: sábado, 27 de agosto de 2016 02:28
Para: Isaque Daniel; r-sig-geo
Assunto: Re: [R-sig-Geo] How to resample a map using the statistical mode of class to fill the new pixel


Isaque, check this thread on StackExchange:
http://gis.stackexchange.com/questions/177423/r-aggregate-raster-with-mode-function-how-does-it-work

[http://cdn.sstatic.net/Sites/gis/img/apple-touch-icon@2.png?v=54e3ab1edcf3&a]<http://gis.stackexchange.com/questions/177423/r-aggregate-raster-with-mode-function-how-does-it-work>

R: aggregate raster with 'mode' function - how does it ...<http://gis.stackexchange.com/questions/177423/r-aggregate-raster-with-mode-function-how-does-it-work>
gis.stackexchange.com
I want to aggregate a very fine resolution raster at various coarser resolutions (that represents many 1000s of categorical polygons). The aggregate{raster} function ...



--Mel.

On 8/26/2016 10:07 PM, Isaque Daniel wrote:

Hi dear all,


I need to resample a tree cover map create by Landsat imagery to the MODIS 250 meters.

If I use the resample function of raster package, it will compute the value based on bilinear or ngb, in this condition the new class map will not answer my expectations.


I loking for a way of resample using the statistical mode to define the value of the pixel of the new map.


Some tip about this?

Thanks
Isaque



------------------------------------------------------------------------------------------------------------------
Agronomist engineer
Master in Remote Sensing - National  Institute for Space Research (INPE) - Brazil
PHD Student in Transport - Bras?lia University (UNB)

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