Re: [R] unable to force the vector format
On Wed, Dec 14, 2005 at 02:46:35PM +0100, Petr Pikal wrote : Hi is colMeans(your.df) what you want? BTW searching column mean in CRAN gives me the answer on first hit Thank you all so much for all the answers I got. rowMeans is what I needed. I will bookmark the search page of CRAN for a later usage. As I forgot the basics or R, I also forgot about CRAN :( Best, -- Charles __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] unable to force the vector format
slides - read.table(slides.txt) slides [1:5,] V1V2 V3 V4 V5 V6 V7 V8 1 PLB00090AA02 0.147 0.018 0.046 0.064 -0.018 -0.008 -0.063 2 PLB00090BC08 0.171 0.011 -0.001 0.009 0.052 0.032 -0.065 3 PLB00090CG02 0.029 -0.014 -0.042 0.006 0.024 -0.009 -0.043 4 PLB00091AA08 0.033 0.050 -0.022 -0.002 0.038 0.015 -0.037 5 PLB00091BE02 0.183 0.039 0.052 -0.014 -0.034 -0.037 0.037 maybe: slides$mean - apply( slides[,2:8],1,mean) close - abs(slides$mean) 0.03 slides[close,] best wishes ido __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] unable to force the vector format
Not too sure what you want the means of, but try ?colMeans ?rowMeans On 12/14/05, Charles Plessy [EMAIL PROTECTED] wrote: Dear all, I am so ashamed to pollute the list with a trivial question, but it is a long time I have not used R, and I need a result in the next one or two hour... I have a table which I have loaded with read.table, and I want to make the mean of its columns. slides - read.table(slides.txt) slides [1:5,] V1V2 V3 V4 V5 V6 V7 V8 1 PLB00090AA02 0.147 0.018 0.046 0.064 -0.018 -0.008 -0.063 2 PLB00090BC08 0.171 0.011 -0.001 0.009 0.052 0.032 -0.065 3 PLB00090CG02 0.029 -0.014 -0.042 0.006 0.024 -0.009 -0.043 4 PLB00091AA08 0.033 0.050 -0.022 -0.002 0.038 0.015 -0.037 5 PLB00091BE02 0.183 0.039 0.052 -0.014 -0.034 -0.037 0.037 but I can not get the mean : mean(slides [1,2:8]) V2 V3 V4 V5 V6 V7 V8 0.147 0.018 0.046 0.064 -0.018 -0.008 -0.063 obviously, I fail to tell R that I am using a vector. y- c(1,2,3,4) mean(y) [1] 2.5 but as.vector does not solve my problem lapply(as.vector(slides[1,2:8]),sum) $V2 [1] 0.147 $V3 [1] 0.018 $V4 [1] 0.046 $V5 [1] 0.064 $V6 [1] -0.018 $V7 [1] -0.008 $V8 [1] -0.063 In the end, I would like to use lapply to fill a new column in the table with the means. (and then extract the closest ones to zero...) Once again, sorry for this mail, whose answer is probably trivial, but it would be an enormous help if somebody could sent it to me! -- Charles __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Jim Holtman Cincinnati, OH +1 513 247 0281 What the problem you are trying to solve? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] unable to force the vector format
Hi is colMeans(your.df) what you want? BTW searching column mean in CRAN gives me the answer on first hit HTH Petr On 14 Dec 2005 at 22:12, Charles Plessy wrote: Date sent: Wed, 14 Dec 2005 22:12:16 +0900 From: Charles Plessy [EMAIL PROTECTED] To: r-help@stat.math.ethz.ch Subject:[R] unable to force the vector format Send reply to: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Dear all, I am so ashamed to pollute the list with a trivial question, but it is a long time I have not used R, and I need a result in the next one or two hour... I have a table which I have loaded with read.table, and I want to make the mean of its columns. slides - read.table(slides.txt) slides [1:5,] V1V2 V3 V4 V5 V6 V7 V8 1 PLB00090AA02 0.147 0.018 0.046 0.064 -0.018 -0.008 -0.063 2 PLB00090BC08 0.171 0.011 -0.001 0.009 0.052 0.032 -0.065 3 PLB00090CG02 0.029 -0.014 -0.042 0.006 0.024 -0.009 -0.043 4 PLB00091AA08 0.033 0.050 -0.022 -0.002 0.038 0.015 -0.037 5 PLB00091BE02 0.183 0.039 0.052 -0.014 -0.034 -0.037 0.037 but I can not get the mean : mean(slides [1,2:8]) V2 V3 V4 V5 V6 V7 V8 0.147 0.018 0.046 0.064 -0.018 -0.008 -0.063 obviously, I fail to tell R that I am using a vector. y- c(1,2,3,4) mean(y) [1] 2.5 but as.vector does not solve my problem lapply(as.vector(slides[1,2:8]),sum) $V2 [1] 0.147 $V3 [1] 0.018 $V4 [1] 0.046 $V5 [1] 0.064 $V6 [1] -0.018 $V7 [1] -0.008 $V8 [1] -0.063 In the end, I would like to use lapply to fill a new column in the table with the means. (and then extract the closest ones to zero...) Once again, sorry for this mail, whose answer is probably trivial, but it would be an enormous help if somebody could sent it to me! -- Charles __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Petr Pikal [EMAIL PROTECTED] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
