search for: esitmation

Displaying 9 results from an estimated 9 matches for "esitmation".

2003 Sep 26
2
performance question
Hi, I am about to write functions for multivariate kernel densitiy estimation with mixed categorical and continuous date (accoring to Jeff Racine and Qi Li), and the leave-one-out window esitmation needs a lot of computation. I am now optimizing the code performance and therefore fhe following questions: As R uses call-by-value for functions, is it computational expensive to pass large matrices in function arguments? (i.e. are they really copied and does this need much computing time?) Is i...
2018 May 12
3
(no subject)
...=NA, V=V, boot=TRUE) attach(res) temps = time M_i = n.event L_t = res F_t=1-L_t??????????????????????????????????? ? par(mfrow=c(1,1)) plot(L_t$time,L_t$survival,type="s",lty=2:3,lwd=2,las=1,cex.lab=1.1,font.lab=2,col="red",xlab="temps",ylab="L(t)",main="Esitmation de la Fonction de Survie L(t)") i need to calculate the probability p(X>V) Le jeudi 10 mai 2018 ? 17:15:06 UTC+2, John Kane <jrkrideau at yahoo.ca> a ?crit : We need some idea of the problem. http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-exa...
2010 Jul 13
1
Three-way Panel Data Analysis
Dear R users, I have panel data on the amount of money spent by travellers from 8 origin countries in 4 destinations. I would like to carry out analysis for destinations, origins and time. However, it seems to me that the package "plm" can only esitmate two-way panel data (indexed by a two-dimensional array). Any suggestions would be greatly appreciated. Thank you. Best regards,
2006 Jun 21
1
Extract information from the summary of 'lm'
Hi Everyone, I just don't know how to extract the information I want from the summary of a linear regression model fitting. For example, I fit the following simple linear regression model: results = lm(y_var ~ x_var) summary(results) gives me: Call: lm(formula = y_var ~ x_var) Residuals: Min 1Q Median 3Q Max -5.9859 -1.5849 0.4574 2.0163 4.6015 Coefficients:
2018 May 13
0
(no subject)
...on, this may be what you are seeking. It's the Pr( X > t ) > > par(mfrow=c(1,1)) > plot(L_t$time,L_t$survival,type="s",lty=2:3,lwd=2,las=1,cex.lab=1.1,font.lab=2,col="red",xlab="temps",ylab="L(t)",main="Esitmation de la Fonction de Survie L(t)") > > > i need to calculate the probability p(X>V) As I see it the probability of X>V is: sum(X > V) [1] 0 And I see this as a matter of definition. I'm guessing you wanted the estimated Hazard. If I'm wrong, I wonder if you can reph...
2018 May 10
0
(no subject)
We need some idea of the problem. http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example http://adv-r.had.co.nz/Reproducibility.html On Thursday, May 10, 2018, 11:07:30 a.m. EDT, malika yassa via R-help <r-help at r-project.org> wrote: Hello Do You help me, i have the problem in the package DTDA for ?find the probability of truncation
2018 May 14
0
(no subject)
...ent > > L_t = res > > F_t=1-L_t? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? > > par(mfrow=c(1,1)) > > plot(L_t$time,L_t$survival,type="s",lty=2:3,lwd=2,las=1,cex.lab=1.1,font.lab=2,col="red",xlab="temps",ylab="L(t)", > > > main="Esitmation de la Fonction de Survie L(t)") [[alternative HTML version deleted]]
2006 Nov 16
3
X-fold cross validation function for discriminant analysis
Hi all, I ran a discriminant analysis with some data and want to get a general idea of prediction error rate. Some have suggested using X-fold cross validation procedure. Anyone know if there is a function for this in R? Thanks, Wade [[alternative HTML version deleted]]
2003 Feb 26
7
[OT] Just saying hi!
I hope this list is small enough for not beeing banned when introducing oneself. So... Hi, I just subscribed to the theora-lists. I'm from the XVID project, so I know a deal about video and MPEG-4 in particular, but nothing about Vorbis/Theora etc., That's why I'm here, because I'm interested in patent-free alternatives. I guess there is no documentation of the current status