Displaying 3 results from an estimated 3 matches for "tom_colson".
2005 Sep 15
4
Error in vector("double", length) : vector size specified is too large....VLDs
I have what R seems to consider a very large dataset, a 12MB text file of
lat,long,and height values, 130,000 rows to be exact.
Here's what I get:
Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson at ncsu.edu
Calendar:
www4.ncsu.edu/~tpcolson
2005 Feb 14
1
64 Bit R Background Question
...hat would make intalling it
on a grid (http://www.ncsu.edu/itd/hpc/Hardware/Hardware.php) a wasted
effort? We have the memory and drive space to do this.
Thanks for any advice
Tom Colson
Center for Earth Observation
North Carolina State University
Raleigh, NC 27695
(919) 515 3434
(919) 673 8023
tom_colson at ncsu.edu
Online Calendar:
http://www4.ncsu.edu/~tpcolson
2005 Feb 18
2
bivariate empirical cdf
Dear R users,
I'm trying to write a small function in order to compute empirical cumulative density function.All seems to work but when I try to plot the function, I always get error messages.
This is the function I use
mecdf<-function(u,v,z) {
u=sort(u)
v=sort(v)
n=length(u)
nb=0
for (i in seq(1,n)) {
if (u[i]<z & v[i]<z) {
nb<-nb+1
}
}
nb=nb/n