How to create raster stack from names on R

Question

I have a dataframe containing the best predictors by their contribution to a model:

bestpredictors
           var contrib
2  Pfallwinter  8.1141
15      Tofall 58.0000
23          ai  5.3573
26     radmean  7.9753
27   radseason  0.9027 

Every variable name is also a raster object. So, how can I make a raster stack with those variables? Like this:

predictors<-stack(Pfallwinter,Tofall,ai,radmean,radseason)

I have tried to extracting the string character and using the do.call and eval functions but seems that isn't the correct way, because they can't call the object already saved.

Answer 1

You can use mget() to search for objects given a character vector.

predictors<-stack(mget(unique(as.character(bestpredictors$var))))