Displaying 10 results from an estimated 10 matches for "jacy".
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jack
2009 May 11
3
Looking for a quick way to combine rows in a matrix
...2 16
'AT' and 'TA' are essentially the same, and I'd like to combine (add) the rows to reflect this. The final matrix should be:
[,1] [,2] [,3] [,4]
AA 1 5 9 13
AT 5 13 21 29
TT 4 8 12 16
Is there a fast way to do this?
Thanks in advance!
Jacy Crosby
jacy.r.crosby@uth.tmc.edu
[[alternative HTML version deleted]]
2009 Apr 07
1
Pulling data into a model
...: aov1<-aov(y~x1+x2+REG[,2:num], data=REG)
I'm not looking for interaction effects, I just want to create a model for the first few columns of variables (exact number and names will vary) and a few other predetermined variables (in the example I named them x1 and x2).
Thanks in advance.
- Jacy
[[alternative HTML version deleted]]
2009 Mar 25
1
Hopefully a simple question
What am I missing here? Both of my column headers in the 'FREQ' table are found in the 'genotype'; however, they aren't being recognized.
> colnames(FREQ)
[1] "X17362526" "X17362627"
> colnames(genotype)
[1] "X17362311" "X17362316" "X17362346" "X17362420" "X17362421" "X17362422"
2006 Oct 25
1
Quantile Regression
Hi,
how is it possible to retrieve the corresponding tau value for each observed data pair (x(t) y(t), t=1,...,n) when doing a quantile regression like
rq.fit <- rq(y~x,tau=-1).
Thank you for your help.
Jaci
--
2009 Apr 21
3
Deleting rows or cols that do not meet cut off
How can I delete both rows and columns that do not meet a particular cut off value.
Example:
> d <- rbind(c(0, 1, 6, 4),
+ c(2, 5, 7, 5),
+ c(3, 6, 1, 6),
+ c(4, 4, 4, 4))
> f <- as.matrix(d)
> f
[,1] [,2] [,3] [,4]
[1,] 0 1 6 4
[2,] 2 5 7 5
[3,] 3 6 1 6
[4,] 4 4 4 4
I would like to delete all
2006 Nov 04
1
Error when using cobs library
Dear R-Users,
I have problems with the cobs library. When doing the cobs example, I get the folling error message:
example(cobs)
cobs> x <- seq(-1, 3, , 150)
cobs> y <- (f.true <- pnorm(2 * x)) + rnorm(150)/10
cobs> con <- rbind(c(1, min(x), 0), c(-1, max(x), 1), c(0,
0, 0.5))
cobs> Rbs <- cobs(x, y, constraint = "increase", pointwise = con)
2006 Nov 09
0
problems with loading packages in R 2.4.0
Hi,
I have just installed R 2.4.0 and when I try to load fMultivar I get
the following error message:
Loading required package: methods
Error in identical(pkg, value at package) : formal classes cannot be used without the methods package
Error: .onAttach failed in 'attachNamespace'
Error: package 'methods' could not be loaded
I have already updated all packages using
2006 Nov 27
0
quantile regression - estimation of CAViaR
How is it possible to estimate the conditional autoregressive Value-at-Risk model
qantile_t(tau)=a0+a1*qantile_(t-1)(tau)+a2*abs(r_(t-1))
see http://www.faculty.ucr.edu/~taelee/paper/BLSpaper1.pdf (page 10)) of Engle & Manganelli in R? The qantile_(t-1)(tau)-term causes headache.
Kind regards,
Jaci
--
"Ein Herz f?r Kinder" - Ihre Spende hilft! Aktion: www.deutschlandsegelt.de
2006 Dec 27
1
how to suppress a "loading required package: ..." message
Hi,
how to suppress a "loading required package:... " message?
Kind regards
Jaci
--
2009 Apr 22
2
Exporting objects plotted with plot3d() - rgl package
...(manta)
> 99. Re: create objects in a loop and adding sqlQuery content to
> them (Katharina May)
> 100. plot with 2 y axes (Christophe Dutang)
> 101. Re: multiple plots in same graph window (William Dunlap)
> 102. Deleting rows or cols that do not meet cut off (Crosby, Jacy R)
> 103. Re: Cross-Correlation function (CCF) issues (David Winsemius)
> 104. Re: Deleting rows or cols that do not meet cut off
> (Stephan Kolassa)
> 105. Re: Deleting rows or cols that do not meet cut off (Rolf Turner)
> 106. Re: plot with 2 y axes (Ben Bolker)
>...