CODEWITHSUNDEEP
rplotmodeling
Ruser
Ruser

Reputation: 11

SVM Plot does not show any result in R

I've used the following code :

library(e1071)

svm.model<-svm(default.payment.next.month~PAY_AMT6,data=creditdata,cost=5,gamma=1)

plot(svm.model,data=creditdata,fill=TRUE)

Upvotes: -1

Views: 1525

Answers (2)

InsatiablyCivil
InsatiablyCivil

Reputation: 13

I know this is quite old but still shows up near top of search results for me. I just had similar issue potentially (though hard to tell with lack of details in question).

I had my target as numeric and it would not plot anything nor give feedback as to why it wouldn't.

I simply converted to my target to factor prior to making the model and it worked.

df$target <- as.factor(df$target)

Upvotes: 0

Prem
Prem

Reputation: 11965

Using a reproducible example provided by @parth you can try something like below.

library(caret)
library(e1071)

#sample data
data("GermanCredit")

#SVM model
svm.model <- svm(Class ~ Duration + Amount + Age, data = GermanCredit)

#plot SVM model
plot(svm.model, data = GermanCredit, Duration ~ Amount)

Here I ran a classification model so y (i.e. Class in above case) in ?svm should be a factor (you can verify this using str(GermanCredit)).

Once the model is built you can plot it using plot. ?plot.svm says that you need to provide formula (by fixing 2 dimensions i.e. Duration ~ Amount in above case) if more than two independent variables are used in your model. You may also be interested in slice option (for more detail refer ?plot.svm).

Upvotes: 1

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