search for: jacy

Displaying 10 results from an estimated 10 matches for "jacy".

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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) >...