[R] Help "deleting negative values in a matrix, and do statistic analysis"

[york8866]

Sorry, my mistake.

it works very well!!!

thanks,



Rui Barradas wrote
> 
> Hello,
> 
> 
> york8866 wrote
>> 
>> Hi, John,
>> 
>> the code ran well.
>> 
>> however, somehow, the means were not calculated correctly using the
>> following code.
>> 
>> test <- read.csv("Rtestdataset.csv", as.is=T,header=T)  
>> test <- data.frame(test)
>> test
>> rowMeans(test)
>> apply(test,1,function(y)mean(y>=0))
>> 
>> Is there anything wrong?
>> thanks,
>> 
> 
> Yes!!!
> 
> It's mean( y[y >= 0] )
> 
> Rui Barradas
> 


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