[R] other way of making a table?

[Jessica Streicher]

So..

		real=factor(realLabels)
		predicted=factor(predictedLabels)
		fl<-unique(levels(real),levels(predicted))
		real=factor(realLabels,fl)
		predicted=factor(pl,fl)
		table(real,predicted)

?

i kinda dont like it :/


On 09.10.2012, at 15:00, Jeff Newmiller wrote:

> Use factors?
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> Jeff Newmiller                        The     .....       .....  Go Live...
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> Sent from my phone. Please excuse my brevity.
> 
> Jessica Streicher <j.streicher at micromata.de> wrote:
> 
>> I'm making tables for prediction results of classifiers (2 classes)
>> that show the usual numbers, true positives, false positives, etc
>> 
>> I used the command
>> 
>> table(predictedLabels,realLabels)
>> 
>> to make those.
>> 
>> I just had a case though ,where one of the label vectors had only one
>> class in it. This will result in only half a table.
>> 
>> Compare:
>> x<-c(1,1,1,0,0)
>> y<-c(1,1,1,0,1)
>> table(x,y)
>> 
>> to 
>> 
>> x<-c(1,1,1,0,0)
>> y<-c(1,1,1,1,1)
>> table(x,y)
>> 
>> I want the second one to still have all 4 cases (second column all
>> zeros then).
>> 
>> Any easy solutions?
>> 
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>