While listing it like that is it possible to remove the rows that has same row and col numbers?
Like.. 1 1 x 2 2 x2 .... Regards, Kumaraguru On Jan 28, 2011, at 9:23 AM, Petr PIKAL <petr.pi...@precheza.cz> wrote: > Hi > > KumaraGuru <kumaragur...@gmail.com> napsal dne 28.01.2011 17:03:50: > >> I want to melt the cor matrix and form a 3 col matrix with row# col# and > cor. > > Well, in that case it will be probably better to transform it to data > frame and use melt. Or you can drop dimensions of this matrix and generate > proper sequences of row and column numbers. Try it with smaller matrix. > > Row names does not matter > >> x<-matrix(1:12, 4,4) >> row.names(x)<-letters[1:4] >> colnames(x)<-letters[1:4] >> x > a b c d > a 1 5 9 1 > b 2 6 10 2 > c 3 7 11 3 > d 4 8 12 4 >> dim(x)<-NULL >> x > [1] 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 >> cbind(rep(1:4, 4), rep(1:4, each=4), x) > x > [1,] 1 1 1 > [2,] 2 1 2 > [3,] 3 1 3 > [4,] 4 1 4 > [5,] 1 2 5 > [6,] 2 2 6 > [7,] 3 2 7 > [8,] 4 2 8 > [9,] 1 3 9 > [10,] 2 3 10 > [11,] 3 3 11 > [12,] 4 3 12 > [13,] 1 4 1 > [14,] 2 4 2 > [15,] 3 4 3 > [16,] 4 4 4 >> > > > > Regards > Petr > > >> >> This I m using to draw a graph. >> >> Regards, >> Kumaraguru >> >> >> On Jan 28, 2011, at 6:47 AM, Petr PIKAL <petr.pi...@precheza.cz> wrote: >> >>> Hi >>> >>> r-help-boun...@r-project.org napsal dne 28.01.2011 09:52:05: >>> >>>> >>>> What makes matrix to print V1, V2 as the row and col indices instead > of >>>> numbers?? >>>> >>>> cdata = read.table("ramesh.txt") #cdata is read from a file. >>>> c1 = cor(cdata) >>>> >>>> I am printing c1 below. I need only numbers. I dont need V1, > V2...what >>>> should I do in this case?? >>>> http://r.789695.n4.nabble.com/file/n3243980/ramesh.txt ramesh.txt >>>> >>>> V1 V2 V3 V4 V5 V6 V7 >>>> V1 1.0000000 0.9471591 0.9191233 0.9403129 0.9689690 0.9621362 >>> 0.9529811 >>>> V2 0.9471591 1.0000000 0.8888108 0.9108174 0.9703906 0.9425248 >>> 0.9294308 >>>> V3 0.9191233 0.8888108 1.0000000 0.8788107 0.9077245 0.9078971 >>> 0.8965331 >>>> V4 0.9403129 0.9108174 0.8788107 1.0000000 0.9477058 0.9017977 >>> 0.8646251 >>>> V5 0.9689690 0.9703906 0.9077245 0.9477058 1.0000000 0.9531459 >>> 0.9162016 >>>> V6 0.9621362 0.9425248 0.9078971 0.9017977 0.9531459 1.0000000 >>> 0.9447130 >>>> V7 0.9529811 0.9294308 0.8965331 0.8646251 0.9162016 0.9447130 >>> 1.0000000 >>>> V8 0.9167526 0.9395067 0.8491496 0.8942693 0.9460702 0.9304229 >>> 0.8505287 >>>> V9 0.9512951 0.9598302 0.8666839 0.9465725 0.9645178 0.9486105 >>> 0.8979753 >>>> V10 0.9551633 0.9040160 0.9180022 0.9429816 0.9448644 0.9220875 >>> 0.9075537 >>> >>> Vn are names of columns which R gave to your matrix when you read it > as a >>> data frame. And cor just makes a matrix of pairwise corelation >>> coefficients from this data frame conveniently named from this data > frame. >>> If you do not want those names just unname it. >>> >>> c1 = unname(cor(cdata)) >>> >>> But I wonder why you dislike those names which are, well, just names. >>> >>> Regards >>> Petr >>> >>> >>>> >>>> -- >>>> View this message in context: >>> http://r.789695.n4.nabble.com/Letters-V1-V2-as- >>>> row-col-indices-instead-of-numbers-tp3243980p3243980.html >>>> Sent from the R help mailing list archive at Nabble.com. >>>> >>>> ______________________________________________ >>>> R-help@r-project.org mailing list >>>> https://stat.ethz.ch/mailman/listinfo/r-help >>>> PLEASE do read the posting guide >>> http://www.R-project.org/posting-guide.html >>>> and provide commented, minimal, self-contained, reproducible code. >>> > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.