Displaying 20 results from an estimated 5000 matches similar to: "lm for matrix of response..."
2007 Apr 20
3
How to return more than one variable from function
Dera R users,
I have written a function which computes variance, sd,
r^2, R^2adj etc. But i am not able to return all of
them in return statement.
So how to return more than one variable from
function. In C i used to return by pointers etc. is
there any way like that.
Thanks in advance.
2007 Feb 12
3
Help neural network in R
I am interested in Neural network models in R. Is
there any reference material/tutorial which i can use.
Regards,
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2007 Jun 27
1
stepAIC on lm() where response is a matrix..
dear R users,
I have fit the lm() on a mtrix of responses.
i.e M1 = lm(cbind(R1,R2)~ X+Y+0). When i use
summary(M1), it shows details for R1 and R2
separately. Now i want to use stepAIC on these models.
But when i use stepAIC(M1) an error message comes
saying that dropterm.mlm is not implemented. What is
the way out to use stepAIC in such cases.
regards,
2007 Jan 27
1
Canging the type of point points sizein plots..
I want to plot variation of more than one variable in
single plot with different point types and points
sizes . Can someone help me to do that,
Thanks in advance.
vinod
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2011 Oct 13
1
Can I use lm() to fit more than one response and more than one variables in single expression
Dear All,
Can I use lm() to fit more than one response in
single expression. e.g data is a matrix of these
variables
R1 R2 R3 X1 X2 X3
1 2 1 1 2 3
Now i wnat to fit
R1~X1
R2~X2
R3~X3
in turn, and I don't want to do it use loops
of couse it it easy to make it using loops,but the proceed is very slow since the data is very big
Can't anybody give me some tips or help, my eamil:
2006 Mar 14
2
problem with optim: (list) object cannot be coerced to 'double'
Hi,
I am trying to use optim to solve a heavy calibration problem. I supply
the parameters in vector form. But before entering my target
The call is simply:
optim(par = parameters, fn = SumLSQ, method = "Nelder-Mead")
the function SumLSQ is simply:
SumLSQ<-function(parameters, data = timeseries){
print("sumLSQ")
nbseries =
2007 Feb 07
2
What is the diffrence between port filtering and packet filtering ?
Hi all,
I want to set up a firewall on CentOS 4.4.
I wnat to know the diiffrence between port filtering and packet filtering ?
Can iptables do both?
Is there another pkg better than this? if so, pls let me know.
The purpose of this is to setup a firewall for production use.
--
Thank you
Indunil Jayasooriya
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2008 Oct 21
2
[help] Realtime Swich any context dinamically
when i wnat to working with realtime and mysql
for any context i have to insert (switch => Realtiem/context at extensions) statment into extensions.conf
for example if i want to have 10 context, i have to insert these lines into extension.conf :
[context1]
switch => Realtiem/context1 at extensions
[context2]
switch => Realtiem/context2 at extensions
[context3]
switch =>
2006 Aug 11
2
POP to IMAP Transition
I am using Dovecot IMAP and added an IMAP folder to an Outlook client
which is also popping another account. Both account folders exist in the
same client. I am wondering if I can drag the pop-ed mail to the IMAP
folder, thereby transferring old mail to the IMAP folder? Outlook allows
me to click and drag folders into the IMAP folder.
You see where I am going with this, I wnat to
2003 Oct 08
3
2 questions regarding base-n and identifing digits
Dear listers,
I have two questions:
(1)
Is there a way in R to change the base-n of the calculations. I wnat to run
some calculations either in binary (base-2) or base-4. Is there a way to
specify that in R - to chnage from the decimal?
(2)
I also want to extract the digits from a larger number and store them as a
vector.
I could do it through converting top string, parsing the string and
2006 Feb 24
4
too many components?
okay.
on /posts/show/13
i have show.rhtml, which does
render_component(:controller=>''comments'', :action=>''display_comments'',
:id=>post.id)
on comments/display_comments
i iterate through the comments and then, display_comments.rhtml
render_component(:controller=>''comments'', :action=>''new'', :id=>@id)
2007 Mar 03
2
Question about stubborn RPM
Hi,
I've made mysqlf a RPM and installed it.
After that i did what i shouldn' do: remove the files it installed.
Now, i wnat to install it agai and i can't.
Already rebuilt the rpm database ( rpm -vv --rebuilddb), used --force,
--replacepkgs, --replacefiles, --justdb, --erase, --initdb, but no good.
Been at rpm.org, but found nothing that i already know.
Any help would be
2006 Aug 22
1
htb prioritise trafic
I have a router with about 300 clients connecting to it. It has htb with
a class per client.
I wnat to create a script to prioritise www trafic and ssh trafic over
p2p trafic....
this is a sample of what i have now:
/sbin/tc class add dev eth0 parent 1:5 classid 1:8012 htb rate 35Kbit
ceil 281Kbit prio 6
/sbin/tc qdisc add dev eth0 parent 1:8012 handle 8012 sfq perturb 8
/sbin/tc filter add
2006 Aug 15
1
coefficients' order in polr()?
Hi all,
I am using polr(). The resulting coefficients of first levels are always 0.
What to do if I wnat to get the coefficients of the last level 0.
For example, suppose x has 3 levels, 1, 2, 3
probit <- plor(y ~ x, data1, method='probit')
will get coefficients of level 2, 3 of x, but I want coefficients of level
1, 2
Thank you,
Tian
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2003 Jul 05
1
How to pull files that are behind excluded directories
Can this be done:
Directory structure under ~/News
News/agent/nntp/(various server names)/=> thousands of actual news
messages/ But also a few files I wnat backed up.
Example
News/agent/nntp/some.news.server/agent.lib
I want agent.lib directory but not all the other stuff under
some.news.server
ls News/agent/nntp/some.news.server/
agent.lib comp gnu alt
The other directories
2004 Mar 26
2
Fwd: MDS problems [ajtee@ajtee.uklinux.net]
Hi all,
I'm trying to perform an MDS of some data that I have. When I use
cmdscale everything is fine and I get some interesting results however,
the tends to be low.
What I wnat to do is compare this with the Non-Metric MDS using isoMDS
or sammon. However, when I try using these I get the following message.
Error in isoMDS(x.dist) : zero or negative distance between objects 2
and 4
2006 Sep 11
3
wireplot margins and additional z-axis
Dear R experts,
it would be very kind if you could help me with two wireplot problems.
First, when I make a wireplot and transform it into an .eps using the postscript function the eps-file leaves always a lot of space below the plot, as if it would leave space for a legend or something like that.
How can i get the plot into the bottom corner without the space below? The space is not there when
2003 Feb 06
6
Confused by SVD and Eigenvector Decomposition in PCA
Hey, All
In principal component analysis (PCA), we want to know how many percentage
the first principal component explain the total variances among the data.
Assume the data matrix X is zero-meaned, and
I used the following procedures:
C = covriance(X) %% calculate the covariance matrix;
[EVector,EValues]=eig(C) %%
L = diag(EValues) %%L is a column vector with eigenvalues as the elements
percent
2012 Sep 30
0
New package: logmult (log-multiplicative models)
This is a wrapper around gnm by Turner and Firth to make fitting
log-multiplicative models as convenient as possible: it provides simple
functions, good starting values, jackknife or bootstrap standard errors,
and direct plotting of the results.
In addition, it makes it possible to identify scores from RC(M)
association models, which gnm does not allow without computing the SVD
yourself. It will
2012 Sep 30
0
New package: logmult (log-multiplicative models)
This is a wrapper around gnm by Turner and Firth to make fitting
log-multiplicative models as convenient as possible: it provides simple
functions, good starting values, jackknife or bootstrap standard errors,
and direct plotting of the results.
In addition, it makes it possible to identify scores from RC(M)
association models, which gnm does not allow without computing the SVD
yourself. It will