Decision Tree: Am I Missing Anything?
Vik,
On Fri, Sep 21, 2012 at 12:42 PM, Vik Rubenfeld <vikr at mindspring.com> wrote:
Max, I installed C50. I have a question about the syntax. Per the C50 manual:
## Default S3 method:
C5.0(x, y, trials = 1, rules= FALSE,
weights = NULL,
control = C5.0Control(),
costs = NULL, ...)
## S3 method for class ?formula?
C5.0(formula, data, weights, subset,
na.action = na.pass, ...)
I believe I need the method for class 'formula'. But I don't yet see in the manual how to tell C50 that I want to use that method. If I run:
respLevel = read.csv("Resp Level Data.csv")
respLevelTree = C5.0(BRAND_NAME ~ PRI + PROM + REVW + MODE + FORM + FAMI + DRRE + FREC + SPED, data = respLevel)
...I get an error message:
Error in gsub(":", ".", x, fixed = TRUE) :
input string 18 is invalid in this locale
You're not doing it wrong. Can you send me the results of sessionInfo()? I think there are a few issues with the function on windows, so a reproducible example would help solve the issue.
Max