Hi,
it is possible. but don't you think it will slow the code if you convert to
data.frame?
Thanks
Date: Thu, 22 Nov 2012 18:31:35 -0800
From: ml-node+s789695n4650500...@n4.nabble.com
To: frespi...@hotmail.com
Subject: RE: Summary statistics for matrix columns
HI,
Is it possible to use as.matrix()?
res<-sapply(data.frame(x),function(x) c(summary(x),sd=sd(x),IQR=IQR(x)))
res1<-as.matrix(res)
is.matrix(res1)
#[1] TRUE
res1[c(1:4,7,5,8,6),]
# Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8
#Min. 10.00000 1.00000 17.00000 3.00000 18.00000 11.00000 13.00000 15.00000
#1st Qu. 24.75000 29.50000 26.00000 7.75000 40.00000 17.25000 27.50000 34.75000
#Median 34.00000 46.00000 42.50000 35.50000 49.50000 23.50000 51.50000 51.50000
#Mean 42.50000 42.75000 41.75000 35.75000 44.88000 26.88000 44.75000 50.12000
#sd 25.05993 27.77846 19.57221 28.40397 16.39196 16.60841 21.97239 25.51995
#3rd Qu. 67.75000 58.50000 50.00000 63.25000 54.25000 30.25000 56.25000 70.50000
#IQR 43.00000 29.00000 24.00000 55.50000 14.25000 13.00000 28.75000 35.75000
#Max. 74.00000 77.00000 76.00000 70.00000 65.00000 63.00000 79.00000 80.00000
# Col9 Col10
#Min. 2.00000 6.00000
#1st Qu. 24.50000 12.50000
#Median 33.50000 48.00000
#Mean 34.88000 40.75000
#sd 24.39811 28.21727
#3rd Qu. 45.25000 63.00000
#IQR 20.75000 50.50000
#Max. 71.00000 72.00000
Solves the order and the matrix output!
A.K.
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