On Sun, Dec 05, 2010 at 08:04:08AM +0530, Santosh Srinivas wrote:
> I am trying to find the function where I can search for a pattern in a
> text string (I thought I could use grep for this but no :().
>
> > x
> [1] "abcdefghijkl"
>
> I want to find the positions (i.e. equivalent of nchar) for "c
On 2010-12-04 21:29, Andrew Collier wrote:
hi peter and david,
thanks for the excellent suggestions. here is something like what i am
finally using (those fancy fonts were really tempting, but i chose
something a little more mundane!):
library(lattice)
x<- sort(rnorm(100,50,10))
y<- sort(runif
hi peter and david,
thanks for the excellent suggestions. here is something like what i am
finally using (those fancy fonts were really tempting, but i chose
something a little more mundane!):
library(lattice)
x <- sort(rnorm(100,50,10))
y <- sort(runif(100,0,20))
d <- expand.grid(x=x, y=y)
d$z
> x <- "abcdefghijkl"
> ?regexpr
starting httpd help server ... done
> regexpr('cd', x)
[1] 3
attr(,"match.length")
[1] 2
>
On Sat, Dec 4, 2010 at 9:34 PM, Santosh Srinivas
wrote:
> I am trying to find the function where I can search for a pattern in a
> text string (I thought I could use grep f
On Sun, 5 Dec 2010, Santosh Srinivas wrote:
I am trying to find the function where I can search for a pattern in a
text string (I thought I could use grep for this but no :().
Correct, but reading
?grep
and running
example( grep )
should show you how to do that search.
I am trying to find the function where I can search for a pattern in a
text string (I thought I could use grep for this but no :().
> x
[1] "abcdefghijkl"
I want to find the positions (i.e. equivalent of nchar) for "cd" and
in case there are multiple hits .. then the results as a array
Thank you
On Dec 4, 2010, at 8:56 PM, Nasrin Pak wrote:
Hi;
I'm trying to use bandplot function. I've installed the gplots
package but
still the function is not found in R. what's the problem?
That usually means you have not yet loaded it. Try one of:
library(gplots)
require(gplots)
--
David Win
Hi Andre
Just saw your email; I'm the author of the 'debug' package but I don't
subscribe to R-help, so it's best to email me directly with questions about
'debug' or 'mvbutils'.
The quick answer is that you can either:
- mtrace( mymodel), then after it has executed the 'build <-
function().
Hi;
I'm trying to use bandplot function. I've installed the gplots package but
still the function is not found in R. what's the problem?
--
Sincerely
Nasrin Pak
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
http
Hi Rich,
I was looking for something that I could make general, as a latex.ftable
method for ftable objects. I realize you showed how to do this for a
particular case, but I'm having a bit of trouble translating this into
a general solution for 1 or more row variables and 1 or more col variables.
Hi:
dt[, mean(A), by = 'B']
B V1
[1,] 1 1.00
[2,] 2 1.67
[3,] 3 2.33
[4,] 4 3.00
...and I can see you've found the data.table mailing list...
HTH,
Dennis
On Fri, Dec 3, 2010 at 3:38 PM, Santosh Srinivas wrote:
> Hello Group,
>
> I need a modification in the data.tab
year1 is the time series data set below
11.64
11.50
11.49
11.16
11.15
11.37
11.37
11.57
11.83
11.87
11.85
11.92
11.77
11.71
11.57
11.24
11.27
11.33
11.17
.
With a total of 1304 rows of data.
When I try to run the code:
diff(sqrt(year10))
I get the response: "data frame with 0 col
Andrew,
see below
On 2010-12-04 08:25, David Winsemius wrote:
On Dec 4, 2010, at 8:25 AM, Andrew Collier wrote:
hi,
i am trying to figure out how to put a caption on the colour scale
of a
levelplot. there does not seem to be an option for this in
levelplot().
Agreed. I could not find one i
> From: josh.m.ulr...@gmail.com
> Date: Sat, 4 Dec 2010 14:47:45 -0600
> To: debmi...@yahoo.com
> CC: r-help@r-project.org
> Subject: Re: [R] Downloading quote data from yahoo finance
>
> On Wed, Dec 1, 2010 at 11:15 PM, Deb Midya wrote:
> > Hi R user
I know little of statistics and have created this function out of intuition.
But since this algorithm is so basic I wonder what is the proper name of
this function and is it build in R.
here is some code in PHP to illustrate what the function is doing, it uses
some function I created but the mean
Hello.
I'm trying to solve a quadratic programming problem of the form min
||Hx - y||^2 s.t. x >= 0 and x <= t using solve.QP in the quadprog
package but I'm having problems with Dmat not being positive definite,
which is kinda okay since I expect it to be numerically semi-definite
in most cases.
Hi All... I haven¹t found mention of this error anywhere. I'm trying to
draw spline curves using grid graphics. Most of the time, I have no
problems, but I have some data sets that give the error in the subject line.
I'm not sure which end points are identical, but the end points passed to
the fu
On Wed, Dec 1, 2010 at 11:15 PM, Deb Midya wrote:
> Hi R users,
>
> Thanks in advance.
>
> I am using R 2.12.0 on Windows XP.
>
> May I request you to assist me in the following please.
>
> 1. I am getting error while downloading quote data from yahoo finance.
>
> The example code is below (taken
On Dec 4, 2010, at 8:25 AM, Andrew Collier wrote:
hi,
i am trying to figure out how to put a caption on the colour scale
of a
levelplot. there does not seem to be an option for this in
levelplot().
Agreed. I could not find one in the levelplot help page or in the
chapter of Lattice on
Your R script works very well. Thank you very much.
Lisa
--
View this message in context:
http://r.789695.n4.nabble.com/Add-columns-of-dataset-tp3071722p3072513.html
Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mai
On Sat, Dec 4, 2010 at 10:09 AM, Christophe Dutang wrote:
> Months ago, when I wanted to compute Nash equilibria (both standard and
> generalized), I only found one package that implements the discrete, i.e.
> when the player payoff is represented by a matrix.
Could you please tell us which R p
Finally, I decided not to depends on SQUAREM, which I used for testing.
Nevertherless extrapolation methods for fixed point iteration are at least
twice faster than the crude fixed-point iteration or other relaxation methods.
Later I would like to do a real benchmark of all methods, not just fix
Hi Christophe,
Aren't you also using fixed-point acceleration schemes (from the SQUAREM
package) for solving the Nash equilibria?
How does fixed-point acceleration approach compare to the optimization approach
in terms of speed and robustness (i.e. convergence from bad starting values)?
Rav
hi,
i am trying to figure out how to put a caption on the colour scale of a
levelplot. there does not seem to be an option for this in levelplot().
i tried using mtext() but as soon as you put the text far out enough on
the right of the plot, it goes beyond the plot boundary. so i tried to
extend
On 04/12/2010 5:40 AM, Alexander Salim wrote:
Hi all,
I have a zoo object issue. When I create a zoo object I have following error
message: "some methods for 'zoo' objects do not work if the index entries in
'order.by' are not unique."
I checked if I have some duplicates in the 'Time' column, R
On Sat, Dec 4, 2010 at 5:40 AM, Alexander Salim wrote:
> Hi all,
>
> I have a zoo object issue. When I create a zoo object I have following error
> message: "some methods for 'zoo' objects do not work if the index entries in
> 'order.by' are not unique."
>
> I checked if I have some duplicates in
Hi all,
I have a zoo object issue. When I create a zoo object I have following error
message: "some methods for 'zoo' objects do not work if the index entries in
'order.by' are not unique."
I checked if I have some duplicates in the 'Time' column, R says yes, but
when I check the data set I can't
Hello all,
Months ago, when I wanted to compute Nash equilibria (both standard and
generalized), I only found one package that implements the discrete, i.e. when
the player payoff is represented by a matrix. So I decided to implement the
computation when the payoff is a continuous payoff, gener
Thanks Jim! I posted the specifics of what I'm trying to accomplish here:
http://r.789695.n4.nabble.com/Slow-Data-Table-Merge-td3072027.html
--
View this message in context:
http://r.789695.n4.nabble.com/Non-visible-functions-merge-data-table-tp3072051p3072075.html
Sent from the R help mailing l
Hi all,
I recently wrote some code to store a number of polynomial models in a list and
return this list. The model is returned fine, but when I make a subsequent call
to predict(), I have an error. The code for polyModel selection is listed at
the end of the email. Here is an example of the er
30 matches
Mail list logo
