r - How to find an object within multiple rdata files -


i trying find way can search folder containing many rdata , rda files find specific object have forgotten in rda file exists.
thank you.

you can load .rdata file (is same rda file?) environment , test if name present function:

 hasgot=function(f,name){       e=new.env()       load(f,env=e)       name %in% ls(env=e,all.names=true)       }

the following variation might faster:

 hasgot=function(f,name){       e=new.env()       load(f,env=e)       !is.null(e[[name]])       }

usage hasgot("my.rdata","foo") see if foo in my.rdata. not vectorised on either argument, feed 1 thing @ time.

a full solution problem involve wrapping in list.files , loop.


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