Noah Silverman wrote:
Thanks for all the suggestions.
My data was loaded in from a csv file with about 80 columns (3 of these
columns are nominal) no specific settings for the nominal columns.
Currently, if I call svm (e1071), I get an error about the nominal column.
Do I need to tell R to
Hi,
The answers to my previous question about nominal variables has lead me
to a more important question.
What is the best practice way to feed nominal variable to an SVM.
For example:
color = (red, blue, green)
I could translate that into an index so I wind up with
color= (1,2,3)
But my
Hi,
On Aug 12, 2009, at 2:53 PM, Noah Silverman wrote:
Hi,
The answers to my previous question about nominal variables has lead
me to a more important question.
What is the best practice way to feed nominal variable to an SVM.
For example:
color = (red, blue, green)
I could translate
That makes sense.
I my data is already nominal, I need to expand a single column into
several binary ones.
Is there an easy function to do this in R, or do I need to create
something from scratch? (If I have to create my own, any suggestions?)
Thanks!
-N
On 8/12/09 1:55 PM, Steve
Noah Silverman wrote:
That makes sense.
I my data is already nominal, I need to expand a single column into
several binary ones.
Is there an easy function to do this in R, or do I need to create
something from scratch? (If I have to create my own, any suggestions?)
Thanks!
-N
Hi Noah,
Silverman
Sent: Wednesday, August 12, 2009 3:59 PM
Cc: r help
Subject: Re: [R] Nominal variables in SVM?
That makes sense.
I my data is already nominal, I need to expand a single column into
several binary ones.
Is there an easy function to do this in R, or do I need to create
something from scratch
On Wed, 12 Aug 2009, Noah Silverman wrote:
Hi,
The answers to my previous question about nominal variables has lead me
to a more important question.
What is the best practice way to feed nominal variable to an SVM.
As some of the previous posters have already indicated: The data structure
Thanks for all the suggestions.
My data was loaded in from a csv file with about 80 columns (3 of these
columns are nominal) no specific settings for the nominal columns.
Currently, if I call svm (e1071), I get an error about the nominal column.
Do I need to tell R to change the column to a
OR, as Steve suggested in a previous post, would it make more sense in
training an SVM to convert a single nominal column into a series of
binary columns?
color = (red, blue, green)
So, imagine if the features for your examples were color and height,
your feature matrix for N examples
Subject: Re: [R] Nominal variables in SVM?
Thanks for all the suggestions.
My data was loaded in from a csv file with about 80 columns (3 of these
columns are nominal) no specific settings for the nominal columns.
Currently, if I call svm (e1071), I get an error about the nominal column.
Do I need
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