I am trying to code a steepest ascent algorithm to optimize parameters used
in a survivor function type problem. My unknown parameters (alpha, Beta0,
and Beta1) for which I have been able to optimize using Newton's method. I
keep getting an error because my alpha becomes negative and I can't
Hi
I need to test scores from questionnaires ADDQoL by age group by Kruskal
test. But he wrote me:
kruskal.test (wis1 ~ vekkat)
Error in kruskal.test.default (c (-2, -4, 0, -1, -1, -3, 0, -4, 0, -1, 0,:
all group levels must be finite
Vekkat is as.factor and wis1 is as.nuemric
How to remove
http://www.cattechneering.com/srr/wahbw/cw/hai/cckdf/yt/ov.swe
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PLEASE do read the posting guide
Hello,
That error occurs if you have Inf values in vekkat. Try to see them with
finite - is.finite(vekkat)
sum(!finite)
If this is not zero, you can fix your test with
kruskal.test(wis1[finite] ~ vekkat[finite])
Hope this helps,
Rui Barradas
Em 10-03-2013 10:37, Adriana Škrinárová
1.Please cc to the list, as I have here, unless your comments are off topic.
2. Use dput() (?dput) to include **small** amounts of data in your
message, as attachments are generally stripped from r-help.
3. I have no experience with itemsets or the arules package, but a
quick glance at the docs
On 09.03.2013 22:06, Jeff Newmiller wrote:
I have found life to be considerably simpler since I have stopped using
Run-As-Administrator. If you use it at any point with R, various files
throughout your filesystem become accessible only when you use RAA again... it
is like heroin... use
Dear all,
I am curious if anyone knows of a command/program that would enable one to
edit a figure in R once it is created (akin to Matlab). Currently, if I
need to make any changes to the figure I do so and then have to run the
plotting portion of the code again. I have searched the R site
Hello everyone,
I have programmed a function and, among other things, it has to compute the
differential of a function. I have been using the function grad() and I have
programmed some simulated studies. I have testes with 72,576 different
combinations of the initial values and now I got an
See the CRAN task view on Graphics and its section on colors:
http://cran.r-project.org/web/views/Graphics.html
Uwe Ligges
On 06.03.2013 18:09, Fisher Dennis wrote:
R 2.15.2
OS X
Colleagues,
I often use rainbow to select colors. I encountered a surprise with
rainbow(11). It yielded
On 10-03-2013, at 16:43, Oleguer Plana Ripoll oleguerpl...@gmail.com wrote:
Hello everyone,
I have programmed a function and, among other things, it has to compute the
differential of a function. I have been using the function grad() and I have
programmed some simulated studies. I have
But updating the system R library is not necessary unless you are managing a
multi-user system. Just update your personal library. I used to do a two-phase
update where I updated my personal libraries and then ran R as administrator
just for the purpose of updating the system library. However,
Does R have any function for performing cluster analysis when each subject
contributes more than one observation to the analysis, i.e. a repeated measures
cluster analysis? I prefer an agglomerative clustering, but would certainly be
happy with a K-mean or other clustering technique. To the
The normal method is to rerun the code. If you use the ggplot2 library you can
store plots in variables and modify them, but you still have to print them
again when you want to see the results.
---
Jeff Newmiller
Dear All,
Unfortunately, I cannot come up with a script or a concrete example at
this stage.
I am trying to investigate statistically a card game (not a game like
poker, but something more like Magic).
There are various kinds of cards (agents, missions, victory points) each
obeying a given
On 2013-03-10 10:49, Lorenzo Isella wrote:
Dear All,
Unfortunately, I cannot come up with a script or a concrete example at
this stage.
I am trying to investigate statistically a card game (not a game like
poker, but something more like Magic).
There are various kinds of cards (agents, missions,
On Thu, Mar 7, 2013 at 6:36 PM, Peter Maclean pmaclean2...@yahoo.comwrote:
Is there a R package that use sampling weights in multilevel modeling? The
survey package does not handle multilevel modeling and the weight option in
lmer and nlmer functions from lme4 (used for multilevel modeling) is
Hi,
I'm trying to perform a hierachical, second order CFA.
That's the thing that I need to leave AMOS.
I found some sim.hierarchical and omega stuff, but nothing clear enough.
Can anyone help me?
I just need a simple and clear manual.
Best,
Pablo.
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Bert Gunter gunter.berton at gene.com writes:
(Sorry, failed to cc the list)
On Sat, Mar 9, 2013 at 10:11 PM, Bert Gunter bgunter at gene.com wrote:
[snip]
But quoting George Box (from a long time ago) on the same sort of
query for a much different problem: Well, of course the
Dear Pablo,
The sem() function in the sem package can do second-order CFA. See the
Thurstone example in ?sem. You could also use the lavaan or OpenMx packages
(the latter not on CRAN).
I hope this helps,
John
-Original Message-
From: r-help-boun...@r-project.org
On 03/11/2013 02:19 AM, Sherri Heck wrote:
Dear all,
I am curious if anyone knows of a command/program that would enable one to
edit a figure in R once it is created (akin to Matlab). Currently, if I
need to make any changes to the figure I do so and then have to run the
plotting portion of
Ben:
My recollection is that it was an answer to a question he received
from the audience at a (JSM? Gordon Conference? Other ...?)
presentation. For obvious reasons, it stuck with me, but I can't do
better than that. I'm pretty sure it was in the mid to late 1990's
when John Tukey was still
Jim:
Whoaaa... this is only true for base graphics!
For grid graphics -- on which both lattice and ggplot are built --
there is a defined object structure for graphics complete with
extensive editing capabilities. See, e.g. ?grid.edit in the grid
package.
Both lattice and ggplot can and do
Hi Erin:
On Mar 9, 2013, at 7:36 PM, Erin Hodgess erinm.hodg...@gmail.com wrote:
Dear R People:
I have a data set with EEG data. There are 128 measurements per second for
16 locations. What is the best way to handle these series, please?
Thanks,
Erin
I don't know about best, but
Dear All,
Suppose I have a vector X = (x_1, x_2, , x_n), X_sort = sort(X)
= (x_(1), x_(2), ... , x(n) ),
and I would like to know the original position of these ordered x_(i)
in X, how can I do it?
case 1: all values are unique
x - c( 3, 5, 4, 6)
x.sort - sort(x) #
# I would like to obtain
?order
cheers,
Rolf Turner
On 03/11/2013 02:24 PM, Jie wrote:
Dear All,
Suppose I have a vector X = (x_1, x_2, , x_n), X_sort = sort(X)
= (x_(1), x_(2), ... , x(n) ),
and I would like to know the original position of these ordered x_(i)
in X, how can I do it?
case 1: all
Hi,
The answer to your question is written on the help page.
?sort
HTH,
Pascal
On 11/03/13 10:24, Jie wrote:
Dear All,
Suppose I have a vector X = (x_1, x_2, , x_n), X_sort = sort(X)
= (x_(1), x_(2), ... , x(n) ),
and I would like to know the original position of these ordered x_(i)
I have a data.frame object like:
data.frame(x=c('A','A','B','B'), y=c('Ab','Ac','Ba','Bd'))
x y
1 A Ab
2 A Ac
3 B Ba
4 B Bd
how could I create a tree structure object like this:
|---Ab
A---|
_| |---Ac
|
| |---Ba
B---|
|---Bb
Thanks,
Zech
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One approach is to build an agent to play the game repeatably and then
calculate the winning odds if a particular card is played.
The logical first step is to implement a playable version of the game using R.
http://www.personeel.unimaas.nl/g-chaslot/papers/ACGSzitaChaslotSpronck.pdf
On Mon,
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