[R] Rows with positive values

[arun]

Hi,
set.seed(285)
dat1<- as.data.frame(matrix(sample(c(-3:30),10*100,replace=TRUE),ncol=10))
dat2<- dat1[!rowSums(dat1<0),]
head(dat1,3)
#  V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
#1 21 19 16 24 11 -1  4 13 18  -3
#2  3 13 13 29 16 29 16 18 12  12
#3 13 22 14 25  9 19 13 30  6   6

head(dat2,3)
#   V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
#2   3 13 13 29 16 29 16 18 12  12
#3  13 22 14 25  9 19 13 30  6   6
#11 23 20  5 27  1 24 18 18 26  14
A.K.


________________________________
From: Vivek Das <vd4mmind at gmail.com>
To: arun <smartpink111 at yahoo.com> 
Sent: Tuesday, September 3, 2013 10:34 AM
Subject: 



Hi Arun,

I would like to know if you have any idea of any function in R by which you can only extract rows from a data frame having only positive values. Is there any way to do it?

----------------------------------------------------------

Vivek Das
PhD Student in Computational Biology
Giuseppe Testa's Lab
European School of Molecular Medicine
IFOM-IEO Campus
Via Adamello, 16
Milan, Italy

emails: vivek.das at ieo.eu
            vchris_05 at yahoo.co.in
            vd4mmind at gmail.com