Gabor Grothendieck wrote:
>
> You should only have to do this from within R:
>
> install.packages("glc", dep = TRUE)
> library(gcl)
> demo("glcdemo", package = "glc")
>
> or in place of the first line you could use the Packages
> menu choosing Install packages...
>
Thanks for your help but I have already run "Packages|Install Packages from
local zip" and it seems to run OK.
There is a directory called glc in C:\R-2.8.1\library\ so the library files
are on my system.
But, I got the following result when I tried to run the last line on Rgui
> demo("glcdemo", package = "glc")
Error in .find.package(package, lib.loc, verbose = verbose) :
there is no package called 'glc'
So, even though the files are there, it looks like the package was not
installed.
I ran search() and the glc package is not listed:
> search()
[1] ".GlobalEnv" "package:stats" "package:graphics"
[4] "package:grDevices" "package:utils" "package:datasets"
[7] "package:methods" "Autoloads" "package:base"
Bob
here is the code I am trying to run:
> # library(gcl)
> #gcldemo <- function() {
> df <-
> structure(list(V1 = c(0.628, 0.317, 0.275, 0.458, 0.926, 0.456,
> 0.894, 0.415, 0.694, 0.193), V2 = c(0.525, 0.746, 0.669, 0.179,
> 0.162, 0.082, 0.951, 0.731, 0.656, 0.478), V3 = c(0.634, 0.994,
> 0.709, 0.198, 0.857, 0.109, 0.896, 0.626, 0.335, 0.615), V4 =
> c(0.714,
> 0.661, 0.208, 0.996, 0.309, 0.306, 0.076, 0.463, 0.187, 0.59),
> V5 = as.integer(c(1, 0, 1, 1, 0, 0, 1, 0, 1, 0))),
> .Names = c("V1", "V2", "V3", "V4", "V5"),
> class = "data.frame",
> row.names = c("1", "2", "3", "4", "5", "6", "7", "8", "9",
> "10"))
>
> cat("Data table:\n")
> print(df)
>
> cat("computing fuzzy rule classifier function cf...\n")
> cf <- gcl(df,filter=df)
> cat("done.\n")
> cat(cf())
> cat("Classifying data:\n")
> print(cf(df))
> # cat("Dumping source of classifying function cf to
> /tmp/example-output.r\n")
> # dump("cf", "/tmp/example-output.r")
> # cat("Removing old definition of classifying function cf...")
> # rm("cf")
> # cat("done.\n")
> # cat("Sourcing /tmp/example-output.r containing definition of function
> cf...")
> # source('/tmp/example-output.r')
> # cat("done.\n")
> # cat("Classifying data again:\n")
> # print(cf(df))
> cat("Making class calls according to max membership:\n")
> calls <- apply(cf(df), 1, which.max) - 1
> m <- cbind(calls, df[,5])
> colnames(m) <- c("GCL Call made", "Actual Class")
> errors <- sum(m[,1] != m[,2])
> cat("Calls:\n")
> print(m)
> cat("Made", errors, "errors.\n")
> cat("That is all folks.\n")
> #}
>
> #gcldemo()
>
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