Dear R helpers,
I'm new to R and struggling with applying functions to a spatial grid data
frame, called data for example.data has a variable named "slope" and "uparea"
Basically, I need to calculate the tan(data$slope)Next, I need to divide
data$uparea by data$slope and take the log() of that all
In the basic examples I found how to make simple multiplications with a scalar
likedata[["slope"]] = data[["slope"]]/2 # assigns new attribute
I come from a background in GIS and fortran, so used to dealing with ordinary
matrices, I'll admit I'm having trouble with understanding the format of this
spatial grid data frame structureI've been trying different methods to index
the data frame, or working with the function "lapply" but so far I can't seem
to get my head wrapped around it.
I appreciate any help.TomResearcher@University of CordobaSpain
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