
There is still missing some statistics, 
like sd and IQR and I prefer the output to be matrix 

Thanks 

Date: Thu, 22 Nov 2012 18:00:20 -0800
From: ml-node+s789695n4650493h34@n4.nabble.com
To: frespider@hotmail.com
Subject: Re: Summary statistics for matrix columns



	HI,

You could try this:

set.seed(125)

x <- matrix(sample(1:80),nrow=8)

colnames(x)<- paste("Col",1:ncol(x),sep="") 

 sapply(data.frame(x),function(x) summary(x))

#         Col1  Col2  Col3  Col4  Col5  Col6  Col7  Col8  Col9 Col10

#Min.    10.00  1.00 17.00  3.00 18.00 11.00 13.00 15.00  2.00  6.00

#1st Qu. 24.75 29.50 26.00  7.75 40.00 17.25 27.50 34.75 24.50 12.50

#Median  34.00 46.00 42.50 35.50 49.50 23.50 51.50 51.50 33.50 48.00

#Mean    42.50 42.75 41.75 35.75 44.88 26.88 44.75 50.12 34.88 40.75

#3rd Qu. 67.75 58.50 50.00 63.25 54.25 30.25 56.25 70.50 45.25 63.00

#Max.    74.00 77.00 76.00 70.00 65.00 63.00 79.00 80.00 71.00 72.00

A.K.

	
	
	
	

	

	
	
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