Re: [R] Randomly drop a percent of data from a data.frame

2013-08-16 Thread Richard Kwock
a(x1)]<-NA;x}) > data2 > # x1 x2 x3 x4 > #1 0.482 1.320 -0.859 -0.142 > #2 -0.753 -0.041 NA NA > #3 0.028 -0.256 -0.069 0.354 > #4 -0.086 0.475 0.244 0.781 > #5 0.690 -0.181 1.274 1.633 > A.K. > > > > ----- Original Me

Re: [R] Randomly drop a percent of data from a data.frame

2013-08-16 Thread Christopher Desjardins
86 0.475 0.244 0.781 > #5 0.690 -0.181 1.274 1.633 > A.K. > > > > - Original Message - > From: Christopher Desjardins > To: "r-help@r-project.org" > Cc: > Sent: Friday, August 16, 2013 3:02 PM > Subject: [R] Randomly drop a percent of data from a d

Re: [R] Randomly drop a percent of data from a data.frame

2013-08-16 Thread arun
NA #3 -1.09734838  0.2069539 -0.6997853 #4  0.75919499 -0.5683809  0.4752002 #5 -0.03063141 -0.7549605  2.6038635 A.K. From: Richard Kwock To: arun Cc: Christopher Desjardins ; R help Sent: Friday, August 16, 2013 5:55 PM Subject: Re: [R] Randomly drop a

Re: [R] Randomly drop a percent of data from a data.frame

2013-08-16 Thread arun
.633 A.K. - Original Message - From: Christopher Desjardins To: "r-help@r-project.org" Cc: Sent: Friday, August 16, 2013 3:02 PM Subject: [R] Randomly drop a percent of data from a data.frame Hi, I have the following data. > set.seed(6245) > data <- data.frame(

[R] Randomly drop a percent of data from a data.frame

2013-08-16 Thread Christopher Desjardins
Hi, I have the following data. > set.seed(6245) > data <- data.frame(x1=rnorm(5),x2=rnorm(5),x3=rnorm(5),x4=rnorm(5)) > round(data,digits=3) x1 x2 x3 x4 1 0.482 1.320 -0.859 -0.142 2 -0.753 -0.041 -0.063 0.886 3 0.028 -0.256 -0.069 0.354 4 -0.086 0.475 0.244 0.781 5 0.69