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Hello, vegMeans <- by(SoilVegHydro[3:37] , SoilVegHydro$Physiogomy, mean) vegSD <- by(SoilVegHydro[3:37] , SoilVegHydro$Physiogomy, sd) write.table(vegMeans, file="A:\\Work_Area\\Steve\\Hydrology_Data\\data\\vegMeans.txt") Error in as.data.frame.default(x[[i]], optional = TRUE, stringsAsFactors = stringsAsFactors) : cannot coerce class '"by"' into a data.frame Is there anyway to convert these output objects for use with write.table or an alternate...

Here is a patch for place plugin. It add a "place_mode" option wich actually can have two values: "Cascade" (original placement mode) and "Centered". Thanks for any comment! Cedric -------------- next part -------------- A non-text attachment was scrubbed... Name: place.patch Type: text/x-diff Size: 3556 bytes Desc: not available Url :

...as_Dissolve.shp", package="maptools")[1], proj4String=CRS("+proj=utm +zone17 +datum=WGS84")) # here an error is reported. (Error in getinfo.shape(filen) : Error opening SHP file # change to the working directory where the NetCDF file is stored setwd("A:\\Work_Area\\Steve\\EDEN") eden <- open.ncdf("Jan_9-28_2011_q1_rt.nc") print(eden) Stage <- get.var.ncdf(nc=eden, varid = "stage") saveHTML({ for (i in 1:90) { image.plot(Stage[, , i], zlim=c(-20,500), main = "EDEN Jan 10 - 28 2011\n Uncorrected Real...