Quantide is pleased to announce the above course in Milan:
--
Introduction to the R language
6-7th July 2009
Milano Italy
--
* Who Should Attend ?
Th
May be:
plot(c(-1, 1) , c(-1, 1), type = "n")
n = 4
a = rep(0, n)
b = 1:n/n
fun = function(i, a, b, col = 1 , ...) {
abline(a[i], b[i], col = col[i], ...)
}
lapply(1:n, fun, a=a, b=b, col = 1:n)
Andrea
Thomas Levine wrote:
I really want to do this:
abline(
a=tan(-kT*pi/180),
b=kY-tan(-
Dear R User
I am using JGR on a Linux Ubuntu Computer with 2 Cpus
When Opening JGR, one Cpu goes up to 100% even if no calculation is yet
started
Did any of you already noticed this strange behaviour?
Thanks for your help
Andrea
__
R-help@r-project.or
The point is that one Cpu stays at 100% for all time JGR is up.
Any ideas?
Andrea
Uwe Ligges wrote:
r...@quantide.com wrote:
Dear R User
I am using JGR on a Linux Ubuntu Computer with 2 Cpus
When Opening JGR, one Cpu goes up to 100% even if no calculation is
yet started
Did any of you
Could be ...
legend("topright",legend=c("Histogram","Kernel Density
Estimate"),lty=c(NA,1), lwd=c(NA,2), pch = c(15, NA), col =
c("lightblue", "black"), merge=TRUE,inset=.01,cex=.8,adj=0)
A.
John Kerpel wrote:
Hi folks! I'm trying to get a histogram legend to give me a filled box and
a line
Something like this should work
library(R.utils)
out = numeric()
qr = c("AAC", "ATT")
n =countLines("test.txt")
file = file("test.txt", "r")
for (i in 1:n){
line = readLines(file, n = 1)
A = strsplit (line, split = " ")[[1]][1]
if(is.element(A, qr)) {
value = as.numeric(strsplit (line, split = "
df = data.frame(x = sample(7:9, 100, rep = T), y = sample(1:5, 100, rep
= T))
fun = function(x){length(unique(x))}
by(df$x, df$y, fun)
Simon Pickett wrote:
Hi all,
I want to calculate the number of unique observations of "y" in each
level of "x" from my data frame "df".
this does the job b
e,
then a database solution is surely better
A.
Wacek Kusnierczyk wrote:
if the file is really large, reading it twice may add considerable penalty:
r...@quantide.com wrote:
Something like this should work
library(R.utils)
out = numeric()
qr = c("AAC", "ATT")
n =countLines
The problem is in the intersect function that does x = as.vector(x) and
therefore transforms date vector into a numeric .
Try to:
d1 = as.character(data1) ; d2 = as.character(data2)
d = intersect(d1, d2)
data = as.Date(d)
A.
Tom La Bone wrote:
I have two collections of dates and I want to fig
If I understood propelly
> tapply(fact3, list(fact1, fact2) , paste, collapse = ",")
A.
Derek Ogle wrote:
I am trying to construct a two-way table where, instead of printing the
two-way frequencies in the table, I would like to print the values of a
third variable that correspond to the freque
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