similar to: pvalue calculate

Dear list, I would like to run an ANCOVA using car::Anova with repeated measures factors, but I can't figure out how to do it. My (between-subjects) covariate always interacts with my within-subject factors. As far as I understand ANCOVA, covariates usually do not interact with the effects of interest but are simply additive (or am I wrong here?). More specifically, I can add a covariate as

Hi R users, I am new to R and am trying to merge data frames in the following way. Suppose I have n data frames each with two fields. Field 1 is common among data frames but may have different entries. Field 2 is different. Data frame 1: Src Target1 1 aaa 1 bbb 1 ccc 2 aaa 3 ddd Data frame 2: Src Target2 2 aaaa 3 dddd 4 bbbb 4

I installed some downloaded packages in R. I always do $sudo R CMD INSTALL <anRpackage.tar.gz> By default it is storing these packages into my directory /home/mary/R/x86_64-pc-linux-gnu-library/2.13/. However I want them to be systemwide into /usr/local/lib/R/site-library/ folder. I tried $sudo R R> install.packages("anRpackage", dep=TRUE) I did not succeed into getting

I installed some downloaded packages in R. I always do $sudo R CMD INSTALL <anRpackage.tar.gz> By default it is storing these packages into my directory /home/mary/R/x86_64-pc-linux-gnu-library/2.13/. However I want them to be systemwide into /usr/local/lib/R/site-library/ folder. I tried $sudo R R> install.packages("anRpackage", dep=TRUE) I did not succeed into getting

I am downloading say 100 files from ucsc website and storing it into dest folder. download.file function create a file in destination folder even if the file is not present which is something I dont want. So I wrote if condition to remove the file if the download function has non zero value. Now it exits when there is an error or file not present. How can I use "try" and "if"

I have two one dimensional list of elements and want to perform cbind and then write into a file. The number of entries are more than a million in both lists. R is taking a lot of time performing this operation. Is there any alternate way to perform cbind? x = table1[1:1000000,1] y = table2[1:1000000,5] z = cbind(x,y) //hanging the machine write.table(z,'out.txt) -- -------------

Hi I have a data frame with values in following format. param case1 1 a 2 b 2 c 2 d 3 e 4 f how to use aggregate so that it I only one row for each 'param' value. the output for the above input should be param case1 1 a 2 b,c,d 3 e 4 f Thanks M -- ------------- Mary

> > I have two dataframes and want to perform cbind and then write into a > file. The number of entries are more than a million in both frames. R is > taking a lot of time performing this operation. > > Is there any alternate way to perform cbind? > > x = table1[1:1000000,1:4] > y = table2[1:1000000,3:6] > > z = cbind(x,y) //hanging the machine > >

In a frequency distribution table (bell shaped), how can we find the most frequent range? for example: x = c(1,2, 4,4,4,4, 5,5,5,6,6,5,5,5,5,5,6,6,6,13, 17,17,30,100,300) barplot(table(x)) In the code above, which function do we use to find that the most frequent value range from 4 to 6. Thanks. -- ------------- Mary Kindall Yorktown Heights, NY USA [[alternative HTML version deleted]]

Hi everybody, I am currently quite inexperienced with R. I try to create a function that simply take a value in a dataframe, look for this value in another dataframe and copy all the row that have this value This example is a simplified version of what I am doing but it's enough to help me listA Name NACE a 1 b 2 c 3 ListB NACE aaa bbb ccc 1 a a c 1 a a c 1 a a c 2 a a c 2 a a c 3 a a c 4 a

Hi R users, I try to read a data file (tab delimited format) in which some of the entries in a particular field are missing. Is it possible to fill the unavailable data with 'UnAvailable' string while performing read.table() Something like df = read.table(DataFile, header=FALSE, fill_missing_entry = 'unAvailable') 1 thanks -- ------------- Mary Kindall Yorktown Heights,

Hi. This is likely a trivial problem but have not found a solution. Imagine the following dataframe: Lat Lon x1 x2 x3 01 10 NA NA .1 01 11 NA .2 .3 01 12 .4 .5 .6 I want to generate another column that consist of the first value in each row from columns x1 to x3. That is NewColumn .1 .2 .4 Any input greatly appreciated, Thanks, Camilo Camilo Mora, Ph.D.

Hi Thanks Gabor for your suggestion. I am posting the code that worked for me. dataframe1 = data.frame(cbind(Src = c(1,1,1,2,3), Target1 = c('aaa','bbb','ccc','aaa','ddd'))); #must be data frame dataframe2 = data.frame(cbind(Src = c(2,3,4,4,4), Target2 = c('aaaa','dddd','bbbb','eeee','ffff'))); dataframe3 =

Hi, I performed an ANOVA repeated measures but I still can't find any good news regarding the possibility to perform multiple comparisons. Can anyone help me? Thanks Diego Bucci Fisiologia Veterinaria Dipartimento di Scienze Mediche Veterinarie Università degli Studi di Bologna Via Tolara di Sopra, 50 40064 Ozzano dell'Emilia, BO Tel. 00390512097904 mail diego.bucci3@unibo.it

Dear list members, I am trying to use dump.frames to debug some code that i run non interactively. I use the following method: dump.frames.mod = function() { dump.frames(dumpto = 'test', to.file = TRUE) quit(save = 'no', status = 10) } options(error = dump.frames.mod) Is there any way to acess the content of the global environment from the *.rda file created in

Dear Daniel and Jorge, Thank you very much and it does help. If I have a string "ABCD", how can I access the second element of the string "B"? Thanks, Miao 2012/7/27 Daniel Nordlund <djnordlund@frontier.com> > > -----Original Message----- > > From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org] > > On Behalf Of jpm miao

I am planning to download a large number of files from some website. I am using the following script. files2down = c('aaa', 'bbb', ................) for (i in 1: len) { print(paste('downloading file', i, ' of total ', len)); url = paste(urlPrefix, files2down[i], sep='') destfile = paste (dest, 'inDir', files2down[i], sep='/' )

Hi I have a data frame in the following form. There are two groups and for each 'width' relative frequency for group1 and group2 is given. How to plot this in R using ggplot or other package. Width relativeFrequency1 relativeFrequency2 1 100 0.0006388783 0.02265428 2 200 0.0022677303 0.02948625 3 300 0.0061182673 0.01739936 4 400 0.0152237225 0.02569902 5 500

I have a list of txt files that I want to convert into .rdata R data object. filenames 1. "./file1.txt" 2. "./file2.txt" 3. "./file3.txt" 4. "./file4.txt" 5. "./file5.txt" 6. "./file6.txt" 7. "./file7.txt" 8. "./file8.txt" 9. "./file9.txt" 10. "./file10.txt" I saved these files as for ( i in

Hi, I am currently building an R package and I am facing a peculiar problem where some of the functions does not work within the package. However, if I source the script the function works. For example, in a method for parallelization of analysis on each chromosome simultaneously I am receiving error at the following position of the code: # this profile the information chromosome wise and