[R] attribute color to a list

[Jim Lemon]

Hi Karim,
I'm not sure that this is what is causing the error, but your "list" is
actually a vector. The following runs, but the function is obviously not
working:

sapply(list,
 function(x)
as.character(attriColorValue(x,list,colors=c("blue","white","red"),feet=1)))

There is probably a better name for your vector than "list".

Jim


On Fri, Aug 28, 2015 at 8:16 PM, Karim Mezhoud <kmezhoud at gmail.com> wrote:

> Hi,
> attriColorValue works with one value. I would like to get the color of a
> list with lappy but in input I have two variables (the value and the list).
>
>
> attriColorValue <- function(Value, list, colors=c(a,b,c, d,e),feet){
>
>      list <- round(list, digits = 0)
>     Max <- max(list, na.rm=TRUE)
>     Min <- min(list, na.rm=TRUE)
>
>   my.colors <- colorRampPalette(colors)
>   #generates Max-Min colors from the color ramp
>   color.df<-data.frame(COLOR_VALUE=seq(Min,Max,feet),
> color.name=my.colors(length(seq(Min,Max,feet))))
>
>   colorRef <- color.df[which(color.df[,1]==Value),2]
>   return(colorRef)
> }
>
> list <-
>
> c(7607.2149,36.0673,26.5613,-21.094,535.1462,8460.8617,3112.3839,1810.5521,-2783.7832,-1283.5496,879.4978,-307.8481,133.6729,51.6518,-212.3436,-118.6624,912.8616,16.7501,465.6139,486.3803,1051.6673,-1529.426,198.9787,-265.013,74.0492,-52.0192,-97.655,-5963.4183,-2118.4033,5701.5644,1987.7252,1638.274,1576.775,1520.7626,1039.4264,905.7974,-966.3739,365.2626,364.8378,258.3969,-323.999,-394.7463)
>
> works
> as.character(attriColorValue(123,list, colors=c("blue","white","red") ,
> feet=1))
>
> not working??
> lapply(list, function(x) attriColorValue(x,df$exprsMeanDiff ,colors, feet))
>
> Thanks
> Karim
>
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