[R] help! Error in using Boosting...

[Patrick Connolly]

On Fri, 10-Jul-2009 at 09:41AM -0700, Michael wrote:

|> Here is my code:
|> mygbm<-gbm.fit(y=mytraindata[, 1], x=mytraindata[, -1],
|> interaction.depth=4, shrinkage=0.001, n.trees=20000, bag.fraction=1,
|> distribution="bernoulli")
|> 
|> Here is the error:
|> Error in gbm.fit(y = mytraindata[, 1], x = mytraindata[, -1],
|> interaction.depth = 4,  :
|>   The dataset size is too small or subsampling rate is too large:
|> cRows*train.fraction*bag.fraction <= n.minobsinnode
|> 
|> What might be the problem?

Well, it tells you:

cRows*train.fraction*bag.fraction <= n.minobsinnode

You don't tell us anything about what you have and what you're trying
to do, so I couldn't possibly say more.

-- 
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.   
   ___    Patrick Connolly   
 {~._.~}                   Great minds discuss ideas    
 _( Y )_  	         Average minds discuss events 
(:_~*~_:)                  Small minds discuss people  
 (_)-(_)  	                      ..... Eleanor Roosevelt
	  
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.