search for: jpfededa

Dear Contributors: I have the next matrix: "X" "Y" "Z" 1 2 526 2 5 723 3 10 110 4 7 1110 5 9 34 6 8 778 7 1 614 8 4 876 9 6 249 10 3 14 I want to order the matrix from bigest Z (1110) to lower Z (14). Then I want to asign a color scale vector from blue ( bigest Z) to orange

Hi all, I have the next matrix: a b c 1 2 23 2 3 42 3 0 54 4 5 23 5 0 22 6 7 21 7 1 20 8 9 19 I want to filter the rows with the values of b higher than 1 in a way that leaves me the next matrix: a b c 1 2 23 2 3 42 4

Hi all, I want to make a vector with the third column of a matrix, but only for the 2+3n rows of the matrix, with n being an entire number from 0 to a million. How can I do that in an easy way? Thanks in advance, Juan Pablo [[alternative HTML version deleted]]

...(i in 1:(length(z)-1)) { for (j in i:length(z)) { v1<-rbind(v1,z[i]) v2<-rbind(v2,z[j]) } } df<-data.frame(cbind(v1=v1,v2=v2)) names(df)<-c("v1","v2") df$ratio<-df$v1/df$v2 Kind regards, Miltinho Brazil ----- Mensagem original ---- De: Juan Pablo Fededa <jpfededa@gmail.com> Para: r-help@stat.math.ethz.ch Enviadas: Quinta-feira, 17 de Janeiro de 2008 13:24:33 Assunto: [R] vector generation Dear Contributors: I have the next vector: "Z" 526 723 110 1110 34 778 614 249 14 I want to generate a vector containing the ratios of all the values ver...

Hi all, Is there an easy way to generate an object wich will be the same matrix, but ordered by de cfp value? The data frame consists of numeric columns: "Block" "X" "Y" "cfp" "yfp" "ID" 0 524 244 213.41795 7.18482109 1 0 556 270 65.383904 9.568372661 2 0 528 316 40.789474

Hello How to compare  two statistical histograms? How i can know if these histograms are equivalent or not??   Regards [[alternative HTML version deleted]]

...ilto:cberry at tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 ------------------------------ Message: 122 Date: Thu, 14 Oct 2010 12:15:37 +1100 From: Michael Bedward <michael.bedward at gmail.com> To: Juan Pablo Fededa <jpfededa at gmail.com>, Rhelp <r-help at r-project.org> Subject: Re: [R] compare histograms Message-ID: <AANLkTi=oLNVM2Thy6w2YUdk6uxS5FB0+8ph6mkxPKRpo at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Hi Juan, Yes, you can use EMD to quantify the difference between any pair...

Hi all, I want to invert the y axis of a plot, how can I do that in an easy way? Thanks in advance, Juan Pablo

Dear Contributors: I have the next vector: "Z" 526 723 110 1110 34 778 614 249 14 I want to generate a vector containing the ratios of all the values versus all the values of the z vector. I mean a vector containing the values of 526/723, 526/110, and so on, 723/723, 723/110, and so on, and so on. Is this doable in a simple way?? Thanks in advance again, Juan Pablo Fededa

Dear contributors: I have vector A composed of numbers wich have values equal to 1 and different to 1. I want to transform de components with a value=1 to a component of value=0, and those with a value different to1, to a value=1. Then I want to take out the components=0. Thanks in advance, Juan Pablo [[alternative HTML version deleted]]

I have two matrixes, red: a 123 c 200 d 400 e 650 g 127 f 100 and blue: a 10 b 20 c 30 d 40 e 50 f 60 g 70 is there any easy way to get the next matrix: a 10 123 b 20 0 c 30 200 d 40 400 e 50 650 f 60 100 g 70 127 i.e. to add in the third column of blue the [,2] values of red corresponding to the file with same [x,1] value of blue, adding a cero in the case that there is no [x,1]

Dear r-help contributors, I have two questions: first: I have a matrix A and a vector B. I want to make a new matrix C, which is made of the rows of A having a value included in B. Second: I have two matrixes A and B, of different dimensions. B has unique values in column 2 and A has not unique values on column 2. I want to merge this two matrixes by the values in the columns 2 of B and 2 of

Dear Contributors: I have two vectors x and z, and I want to display the histograms of both vectors in the same graph, x in red bars, z in blue bars. If you have any clue on how to do that, I will be very glad to hear it!!!!!! Thanks in advance again, Juan Pablo Fededa [[alternative HTML version deleted]]