r - lapply and interp (akima) -


i'd interpolate on many individual data.frames stored within list using akima package.

having split original data frame: 

store <- split(data, data$frameid)

i tried this...

 results <- lapply(store, interp, x = lon, y = lat, z = precip)

but error message error in interp(x = lon, y = lat, z = precip) : object 'lat' not found.

single results can successfully generated following..

results <-list() # create , empty list results  results[[i]]<-with(store$`600`, interp(x = lon, y = lat, z = precip)).

where 600 represents name of 1 of data.frames within list.

however attempting generalise entire list using loop-approach..

i=1  (i in i:length(store)){   results[[i]]<-with(store$`i`, interp(x = lon, y = lat, z = precip))  }

i again receive error in interp(x = lon, y = lat, z = precip) : object 'lat' not found.

any advice appreciated.

using suggestions, , accounting duplicate points (same lat , lon stations) job.

i=1  (i in i:length(store)){   results[[i]]<-with(store[[i]], interp(x = lon, y = lat, z = precip, duplicate = "mean")) }

-

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