dependencies - 'Adehabitat' package installation without tk dependency? -

dependencies - 'Adehabitat' package installation without tk dependency? -

i'd run r programme (that works on pc) on server. programme uses 'adehabitat' bundle functions 'enfa', 'kasc', etc. 'adehabitat' has dependency 'tkrplot' bundle phone call 'tk'. 'tk' not installed on server because there no graphical interface !

so, 2 options : - there possibility install 'adehabitat' bundle without dependencies ? - contain enfa functions ?

thanks help,

i tried adapt code using 'adehabitat' bundle , similar functions enfa next code:

predictors_enfa <- stack(raster(sst_climato),raster(chloro_climato)) predictors_enfa <- as(predictors_enfa,'spatialpixelsdataframe') names(predictors_enfa)=c("sst","chl") pr <- slot(count.points(species, predictors_enfa), "data")[,1] warning message: in count.points(species, predictors_enfa) : several columns in spatialpointsdataframe, no id considered predictors_enfa <- na.omit(predictors_enfa) pc <- dudi.pca(slot(predictors_enfa, "data"), scannf=false) error in dudi.pca(slot(predictors_enfa, "data"), scannf = false) : na entries in table

i don't understand why error dudi.pca() function.

thanks help.

dependencies tk