Displaying 20 results from an estimated 10000 matches similar to: "Returning "overall ms" for CVlm"
2013 Mar 28
0
using cvlm to do cross-validation
Hello,
I did a cross-validation using cvlm from DAAG package but wasn't sure how to assess the result. Does this result means my model is a good model?
I understand that the overall ms is the mean of sum of squares. But is 0.0987 a good number? The response (i.e. gailRel5yr) has min,1st Quantile, median, mean and 3rd Quantile, and max as follows: (0.462, 0.628, 0.806, 0.896, 1.000, 2.400) ?
2013 Feb 15
0
CVlim
Can anyone help explain to me why the two codes below have different result? I thought I can use log(time)~. to replace log(time)~dist+climb+timef.I am using CVlm from DAAG package. I think nihills is preloaded with the package. Thanks in advance.
> CVlm(df=nihills, form.lm=formula(log(time)~.),plotit="Observed",m=2)Analysis of Variance Table
Response: log(time) Df Sum Sq
2013 Jun 04
1
How to write a loop in R to select multiple regression model and validate it ?
I would like to run a loop in R. I have never done this before, so I would be
very grateful for your help !
1. I have a sample set: 25 objects. I would like to draw 1 object from it
and use it as a test set for my future external validation. The remaining 24
objects I would like to use as a training set (to select a model). I would
like to repeat this process until all 25 objects are used as a
2013 Apr 19
1
Sequence analysis
Hiya,
I am trying to look at the similarities between a number of
sequences, for example i am trying to see how similar "ababbbassdaa" is to
"addffggssbbsbbs" I was wondering is the some way for me to see how similar
they are in terms of, for example, number of a's, number of b's, how often a
and ab are consecutive, how often abab is together etc.
Any advice
2010 Jul 05
0
R squared from cv.lm
Hello,
I used the cv.lm function to validate a linear regression model
fit<-lm(y ~ x1+x2+x3+x4+0, data=mydata) without intercept
I tried to validate the model by performing a leave one out cross validation
procedure usinfg the cvlm function:
CVlm(df=mydata, fit, m=196)
But how can I get the adjusted R? from the output of this function.
Or is there any other function to
2018 May 29
1
Difficulty in writing R code for one pool dynamic model
Hi everyone,
I was trying to mode the following exercise using R.
The question: Set up a one pool model using numericintegration. The model will run from time 1 to time 30 using a time step of 1.The pool (A) will be fed by flux "inA" at a rate of 5 units per hour anddrained by flux "outA" at a rate of 20% per hour. At time 0, A has 5units. At time 30, what is the pool size of
2018 May 31
0
Help in dynamic simulation using deSolve
Hi R help,
I wanted to simulate two pool model (A&B) using deSolve package for time 0 to 12 by 1.? Initial values of the state variables are A=5, B=3. The fluxes are as follows1) Flux into A= 5 units per unit time?2) Flux from A to B= 0.33) Flux out of A=0.1?4) Flux from B to A=0.35) Flux out of B=0.3
Here is the R code I compiled to estimate the size of A and B and graph the output
2011 Mar 04
4
cv.lm syntax error
Dear all,
I've tried a multiple regression, and now I want to try a cross-validation.
I obtain this error (it must be sth related to df) that I don't understand,
any help would be appreciated.
cv.lm(df= dat, lm2.52f, m=3)
Error en `[.data.frame`(df, , ynam) : undefined columns selected
lm2.52f is my lm object, dat is a dataframe where the variables involved in
.lm are
I tried CVlm
2003 Oct 30
2
AW: trying to figure out how the --delete option works.
Add this:
--delete-excluded
See the manual.
Rainer
-----Urspr?ngliche Nachricht-----
Von: rsync-bounces+rsync=diplan.de@lists.samba.org
[mailto:rsync-bounces+rsync=diplan.de@lists.samba.org]Im Auftrag von
Mandrake Pe
Gesendet: Mittwoch, 29. Oktober 2003 13:33
An: rsync@lists.samba.org
Betreff: trying to figure out how the --delete option works.
I use this comand to back up my entirely drive
2011 Mar 16
0
cross validation? when rlm, lmrob or lmRob
Dear community,
I have fitted a model using comands above, (rlm, lmrob or lmRob). I don't
have new data to validate de models obtained. I was wondering if exists
something similar to CVlm in robust regression. In case there isn't, any
suggestion for validation would be appreciated.
Thanks, user at host.com
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2009 Apr 26
7
Bumps chart in R
Hi there,
I would like to make a 'bumps chart' like the ones described e.g.
here: http://junkcharts.typepad.com/junk_charts/bumps_chart/
Purpose: I'd like to plot the proportion of people in select countries
living for less then one USD pr day in 1994 and 2004 respectively. I
have already constructed a barplot - but I think a bumps chart would
be better
# The barplot and data
2009 Feb 25
2
1/2 OFF-TOPIC: How to use CLVM (on top AoE vblades) instead just plain LVM for Xen based VMs on Debian 5.0?
Guys,
I have setup my hard disc with 3 partitions:
1- 256MB on /boot;
2- 2GB on / for my dom0 (Debian 5.0) (eth0 default bridge for guests LAN);
3- 498GB exported with vblade-persist to my network (eth1 for the AoE
protocol).
On dom0 hypervisor01:
vblade-persist setup 0 0 eth1 /dev/sda3
vblade-persist start all
How to create a CVLM VG with /dev/etherd/e0.0 on each of my dom0s?
Including the
2007 Oct 20
0
security domain
I have two Linux computers suse and RH enterprises. The first one (suse)
works as PDC and everything is OK with PDC, all Shares work correctly. Now I
have installed second samba Server on RH Enterprise and try set it as domain
memember, so I set the security on domain. As I read, if this second samba
stay a member of domain every share I try to rich would be checked with
password on domain I mean
2003 Oct 29
0
trying to figure out how the --delete option works.
I use this comand to back up my entirely drive to a second drive. Because the
second drive is smaller I have excluded my movies directory. I also excluded
the /mnt/ diectory, becous I dont want to back up the backup. This part works
just fine.
It's the --delete option I cant get to work. I want rsync to delete files on
the backup(destination) drive, that I have deleted or moved on the
2012 Oct 23
2
multi-panel figure: overall title for each row
Dear all,
I have a 3x2 plot and in addition to the title of the individual plots I
would like to have an overall title
for each row. I managed to get an overall title for the whole plot matrix
with mtext:
par(mfrow=(c(3,2)), mar=c(6.4,4.5,4.2, 1.8), oma=c(0,0,3,0))
for (i in 1:6)
barplot(sample(1:10,5), main=paste("Plot #",i))
mtext("Overall Title Row 1", outer=TRUE)
but I
2010 Sep 29
0
eha aftreg overall p-value
Dear useRs,
I am currently fitting an advanced failure time model using G?ran
Brostr?m's excellent "eha" library with the "aftreg" command.
My question: How do I interpret the "Overall p-value", that is
reported at the very bottom of the output? I already figured out it
must be a chi-square test, but I am wondering what a p-value < 0.01
means:
Does it mean
2011 Jul 14
1
LME and overall treatment effects
Hello fellow R users,
I am having a problem finding the estimates for some overall treatment
effects for my mixed models using 'lme' (package nlme). I hope someone
can help.
Firstly then, the model:
The data: Plant biomass (log transformed)
Fixed Factors: Treatment(x3 Dry, Wet, Control) Year(x8 2002-2009)
Random Factors: 5 plots per treatment, 5 quadrats per plot (N=594 (3*5*5*8)
2007 May 25
1
Xen and overall system load
In a CentOS 5 dom0, how does one find out the overall system load?
In the early days of Xen, I believe an uptime on dom0 provides an overall
load for the server. This doesn't seem to be the case anymore.
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2012 Apr 20
1
Is there a overall calculation precision control in R
Hi all,
I know the overall display precision can be changed in R...
but what about overall calculation precision?
Thank you!
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2006 Mar 14
0
Test of Significance for overall-accuracy
Hello,
I have two classifications. How can I compare the overall-accuracy of these
classifications to each other?
Is there a possibility within R to test if the achieved overall-accuracy
for the classifications are differing significantly?
Additionaly, are the McNemar-Test and Broker-Test implented in a package of R?
Thank in advance for your help,
Markus