Re: [R] Odp: Letters(V1, V2..) as row col indices instead of numbers
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 V1V2V3V4V5V6 V7 V1 1.000 0.9471591 0.9191233 0.9403129 0.9689690 0.9621362 0.9529811 V2 0.9471591 1.000 0.108 0.9108174 0.9703906 0.9425248 0.9294308 V3 0.9191233 0.108 1.000 0.8788107 0.9077245 0.9078971 0.8965331 V4 0.9403129 0.9108174 0.8788107 1.000 0.9477058 0.9017977 0.8646251 V5 0.9689690 0.9703906 0.9077245 0.9477058 1.000 0.9531459 0.9162016 V6 0.9621362 0.9425248 0.9078971 0.9017977 0.9531459 1.000 0.9447130 V7 0.9529811 0.9294308 0.8965331 0.8646251 0.9162016 0.9447130 1.000 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.
Re: [R] Odp: Letters(V1, V2..) as row col indices instead of numbers
I want to melt the cor matrix and form a 3 col matrix with row# col# and cor. 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 V1V2V3V4V5V6 V7 V1 1.000 0.9471591 0.9191233 0.9403129 0.9689690 0.9621362 0.9529811 V2 0.9471591 1.000 0.108 0.9108174 0.9703906 0.9425248 0.9294308 V3 0.9191233 0.108 1.000 0.8788107 0.9077245 0.9078971 0.8965331 V4 0.9403129 0.9108174 0.8788107 1.000 0.9477058 0.9017977 0.8646251 V5 0.9689690 0.9703906 0.9077245 0.9477058 1.000 0.9531459 0.9162016 V6 0.9621362 0.9425248 0.9078971 0.9017977 0.9531459 1.000 0.9447130 V7 0.9529811 0.9294308 0.8965331 0.8646251 0.9162016 0.9447130 1.000 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.
Re: [R] Odp: Letters(V1, V2..) as row col indices instead of numbers
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 V1V2V3V4V5V6 V7 V1 1.000 0.9471591 0.9191233 0.9403129 0.9689690 0.9621362 0.9529811 V2 0.9471591 1.000 0.108 0.9108174 0.9703906 0.9425248 0.9294308 V3 0.9191233 0.108 1.000 0.8788107 0.9077245 0.9078971 0.8965331 V4 0.9403129 0.9108174 0.8788107 1.000 0.9477058 0.9017977 0.8646251 V5 0.9689690 0.9703906 0.9077245 0.9477058 1.000 0.9531459 0.9162016 V6 0.9621362 0.9425248 0.9078971 0.9017977 0.9531459 1.000 0.9447130 V7 0.9529811 0.9294308 0.8965331 0.8646251 0.9162016 0.9447130 1.000 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.
Re: [R] Odp: Letters(V1, V2..) as row col indices instead of numbers
Suppose your correlation matrix is called cc. One way to do what you want is result = cbind(as.vector(row(cc)),as.vector(col(cc)),as.vector(cc)) result = result[result[,1] != result[,2],] - Phil Spector Statistical Computing Facility Department of Statistics UC Berkeley spec...@stat.berkeley.edu On Fri, 28 Jan 2011, KumaraGuru wrote: 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 V1V2V3V4V5V6 V7 V1 1.000 0.9471591 0.9191233 0.9403129 0.9689690 0.9621362 0.9529811 V2 0.9471591 1.000 0.108 0.9108174 0.9703906 0.9425248 0.9294308 V3 0.9191233 0.108 1.000 0.8788107 0.9077245 0.9078971 0.8965331 V4 0.9403129 0.9108174 0.8788107 1.000 0.9477058 0.9017977 0.8646251 V5 0.9689690 0.9703906 0.9077245 0.9477058 1.000 0.9531459 0.9162016 V6 0.9621362 0.9425248 0.9078971 0.9017977 0.9531459 1.000 0.9447130 V7 0.9529811 0.9294308 0.8965331 0.8646251 0.9162016 0.9447130 1.000 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. __ 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.
