similar to: how to find unique pairs of variables?

I'm doing a text mining project where I have to manually enter a double quote as an element inside a vector. I tried char[10]='"'#where i enclosed the double quote in a pair of single quotes. But the result is [1] "\"". Somehow a back slash is added automatically. I also tried to enclose the double quote in a pair of double quotes. That didn't work either.

This is has been bugging me for a long time. Nobody around me seems to have this problem. I hope someone on the forum could help me. When I generate a R graph and want to bring the image into Word. I cannot copy and paste it like many of my classmates can do. The "Select" in Edit menu have all options grayed out. So what I ended up doing is to save it as pdf file and bring it

Hello, I'm trying to separate my dataset into 4 parts with the 4th one as the test dataset, and the other three to fit a model. I've been searching for the difference between these 2 functions in Caret package, but the most I can get is this-- A series of test/training partitions are created using createDataPartition while createResample creates one or more bootstrap samples.

Hi, I just started playing with county FIPS feature in maps package which allows geospatial visualization of variables on US county level. Pretty cool. I did some search but couldn't find answer to this question--how can I map more than 2 variables on US map? For example, you can map by the breakdown of income or family size. How do you further breakdown based on the values of both

Hello all, I have not been able to find an answer to this problem. I feel like it might be so simple though that it might not get a response. Suppose I have a dataframe like the one I have copied below (minus the 'calib' column). I wish to create a column like calib where I am subtracting the 'Count' when 'stain' is 'none' from all other 'Count' data for

hi list, i have a little problem with 2-node RAC using OCFS. the application running on this cluster does heavily index-based accesses. the data volumes are SAN volumes connected by fibrechannel. the throughput does not exceed 10mb/s, average is 7-8 mb/s. i've used 'iostat -x' and got rkB/s=8000 while %util=100% (device was saturated) from kernel's POV. i did some

Hello list First of all: Good work and thanks for GlusterFS! I'm totally new to GlusterFS, but i like it a lot and think about migrating my NFS setup completely to GlusterFS. But i ran into some problems with my chosen structure. Hopefully someone can help out. The first questions: i ran into some performance issues with a certain structure/setup and like to know (before i continue testing)

I have a file Server CentOS 5.10, its on the internet, so I compress all csv into one file using (tar -czvf compressed_files.tar.gz *.csv) on this server so that I can download them as one compressed file to save bandwidth, Disk space on this server available is 50Gig, so when I copy the files onto Redhat EL 5.9 and decompress them using (tar -zxvf *.gz) It decompresses maybe 80% then get error:

SYSTEM: rh6x based system, 2.2.19-6.2.7 rh errata kernel + 0.0.7a patch, I rebuilt rpm for i686; celeron466, 64MB, PIIX4. root fs is on software raid1 ext2, 6 additional fs's on software raid1 ext2. There's a 3rd HD, not mirrored, which is mounted ext3. EXT3-fs: mounted filesystem with ordered data mode. I enabled journal with tune2fs -j with unmounted fs. The 3 HDs are tuned with

I have a dataset where I have missing times (11:00 and 16:00). I would like the outputs to include the missing time so that the final time vector looks like "realt" and has the previous time's value. Ex. If meas at time 15:30 is 0.45, then the meas for time 16:00 will also be 0.45. meas are the measurements and times are the times at which they were taken. meas<-runif(18)

Hi, is there a way to replicate a data.frame like you can replicate the entries of a vector (with the repeat-function)? I want to do this: x <- data.frame(x, x) (where x is a data.frame). but n times. And it should be as cpu / memory efficient as possible, since n is pretty big in my case. thanks for any suggestions!

Dear all, I have one problem and did not find any solution.(I have also attached the problem in text file because sometimes column spacing is not good in mail) I have a file(file.txt) attached with this mail.I am reading it using this code to make a data frame (file)- file=read.table("file.txt",fill=T,colClasses = "character",header=T) file looks like this- Chr Pos

Hi, how can I print "<=" (I mean the symbol of just one character) in the main title of a plot? for example: plot(1:10, main=paste("x <=", x)) where variable x is some number generated on the fly. Thanks John

Dear R-users I need to fit a nonlinear model to a piece of data. The model to be fitted uses past values of the input and the ouput - something like y(k) ~ f(y(k-1),y(k-2),u(k),u(k-1) ....) (k is time index). As far as I know I could use earth(MARS), nnet and etc but I am not sure how to deal with the past values since most, if not all, examples I saw formula does not take in account past

Thanks Bill. Do you and others think that a link to this guide (or another)should be included in the Posting Guide and/or R FAQ? -- Bert On Tue, May 17, 2011 at 4:07 PM, <Bill.Venables at csiro.au> wrote: > Amen to all of that, Bert. ?Nicely put. ?The google style guide (not perfect, but a thoughtful contribution on these kinds of issues, has avoiding attach() as its very first line.

Hello R experts I have two linear regressions for sexes (Male, Female, Unknown). All have a good correlation between body length (response variable) and head length (explanatory variable). I know it is not recommended, but for a good practical reason (the purpose of study is to find a single conversion factor from head length to body length), the regressions need to go through the origin (0

I'm plotting x and y and there are a couple of outliers. I want to show the value of z for these couple of outliers. Is there an easy way to do this?

Hi guys, I need your help with the boxplot. I've to create a boxplot starting from a table (.csv) in which there are the result of a test. Each column is a question and the rows are the answer of the respondents (from 0 to 5). Some answer is missing and has been filled with NA. the table has been loaded in R with the function read.csv I created the boxplot with the function boxplot and all

I'm running samba 2.2.3a-6 under Debian (testing) and I am having a heck of a time getting Windows 2000 to print to my printer. I keep getting that "Access denied, unable to connect" message. At one point I had it so you could print test pages, but as soon as you tried to print from an application, it would break. However, that doesn't even work anymore. I've been reading

Full_Name: Bonnie Version: 1.6.1 OS: Windows Submission from: (NULL) (160.129.25.106) glm() seems to converge, even when it shouldn't. I am trying to fit a model where $converge=FALSE and I am fitting models that do not converge in SAS, but they seem to converge in R ... Thank you.