[R-sig-Geo] Incorrect month order in zApply function

[Thiago V. dos Santos]

Thanks for the information, Oscar. Perhaps it would be a good idea to include it in the zApply description within the raster manual? 
Best, Thiago. 

Sent from Yahoo Mail on Android 
 
  On Thu, Aug 4, 2016 at 3:19 AM, Oscar Perpiñán Lamigueiro<oscar.perpinan at upm.es> wrote:   Hello,

With the current code of zApply, you should use a function that returns an ordered vector. For example:

Month <- function(x)
{
    idx <- as.numeric(format(x, '%m'))
    factor(month.name[idx],
          levels = month.name,
          ordered = TRUE)
}


x2 <- zApply(s, by = Month, mean)

Best,

Oscar.
-- 
Oscar Perpiñán Lamigueiro
Dpto. Ing. Eléctrica, Electrónica, Automática y Física Aplicada
Escuela Técnica Superior de Ingeniería y Diseño Industrial
URL: http://oscarperpinan.github.io  

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