[R] Why 'gbm' is not giving me error when I change the response from numeric to categorical?

[peter dalgaard]

On Oct 4, 2013, at 21:16 , Mary Kindall wrote:

> Y[Y < mean(Y)] = 0   #My edit
> Y[Y >= mean(Y)] = 1  #My edit

I have no clue about gbm, but I don't think the above does what I think you think it does. 

Y <- as.integer(Y >= mean(Y)) 

might be closer to the mark.

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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