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Hi all: I have a question on how to go about creating a correlation matrix. I have a huge amount of data....21 variables for 3471 times. I want to see how each of the variables correlate to each other. Any help would be appreciated, including which package and which functions I should use to do this. Thanks, Jessica Higgs Masters Student Department of Meteorology Penn State University

I am trying to bring data into R from an excel spreadsheet in order to perform several statistical tests on it. I was trying to use odbcConnectExcel in the RODBC package. Once I am connected to the excel file, how do I select rows and columns from the file in order to analysis them in R.

Hi all, This is a GSoC 2013 proposal for LLVM project. Please see the formatted version at here: http://pacman.cs.tsinghua.edu.cn/~liuml07/files/gsoc2013-proposal-program-slicing.pdf Program slicing has been used in many applications, the criteria of which is a pair of statement and variables. I would like to write an inter-procedural program slicing pass in LLVM, which is able to calculate C

Sorry to bother everyone, but I've looked in all of the help files and manuals I have and I can't find the answer to this question. I'm doing principle component analysis by calculating the eigen vectors of a correlation matrix that I have that is composed of 21 parameters. I have the eigen vectors and their values that R produced for me but I'm not sure how to tell which

I am trying to search through a matrix I have (x) to see if there are any missing values. This is what I have been using: for (i in 1:3455) for (j in 1:24) if (is.na(x[i,j])) break; i j When I run the program, it either freezes or stops and returns the last entry in the matrix (x[3455,24]). I need to figure out what values in my data matrix are missing because I am using prcomp

Dear R-users, I am looking for a way to assign to slices of arrays where dimensionality of the array is not a-priory known. Specifically, I would like to be able to generalize the following example of dimensionality 2 to an arbitrary diminsionality: In this example we create an array x, a smaller array y and then assign y to a slice of x. > dimnmx <- list(c('a','b'),

Hi all, I had a second thought of the dynamic slicing, as well as the source code generating. Firstly, the dynamic slicing is very useful to software community (I'll illustrate more in the refined proposal later), but it's already implemented by Swarup and John Criswell from UIUC. The static slicing code has been released as Giri project in LLVM, and they would kindly release the dynamic

Right now, the tests try to accomplish the following 1. Define a sequence of instructions (e.g a,b,c) 2. Insert that sequence into k places with an unique instruction between them to make sure the outliner will yank them out *without overlaps* 3. Check for k calls to an outlined function 4. Check that the outlined sequence still exists in the program This can result in some pretty long tests

Dear all, I am working with a csv file. Some data of the file are not valid and they are marked with a star '*'. For example : *789. I have attached with this email a example file (test.txt) that looks like the data I have to work with. I see 2 possibilities ..thast I cannot manage anyway in R: 1-first & easiest solution: Read the data with read.csv in R, and define as na strings

Hi I had a few test shares  created and they were working fine. Users could read or write depending on the windows group that was defined on the share. I have since removed the test shares and created the file structure needed and setup the smb.conf file with the share names.  I have also setup the groups and assigned them to the respective directories.  Problem is the users can connect to

Hi Jessica, This time I'm replying all.... On Fri, May 4, 2018 at 12:45 PM, Jessica Paquette <jpaquette at apple.com> wrote: > I would personally like a feature like that in FileCheck because it would > make it a lot easier to write MachineOutliner tests, and would make the > tests significantly smaller and easier to understand. > How do MachineOutliner tests accomplish

Hi Violeta, I compiled with clang -Oz and clang -Oz -mno-red-zone for comparisons against Oz and clang -O0 and clang -O0 -mno-red-zone for comparisons against a default clang. I unfortunately don’t have the clang commit I worked with on my home laptop, and don’t have access to the computer I was using at Apple, so I can’t help you there. Jessica > On Sep 28, 2016, at 11:22 AM, Violeta

Sorry, I was using a modified compiler, which by coincidence made the bug much easier to reproduce. In some rare cases, the compiler will use x30 as a general-purpose register; in that case, outlining breaks because the "ret" branches to the wrong address.  Testcase (reproduce with "clang -O3 --target=aarch64-pc-linux-gnu -mllvm -enable-machine-outliner"): extern long g1;

I just ran SPEC at -O3 with the outliner enabled for AArch64 and didn’t get any failures on my end. Which flags did you use? I’m curious about what’s going on here... I used -O3 -mllvm -enable-machine-outliner -arch arm64. - Jessica > On Apr 23, 2018, at 1:41 PM, Jessica Paquette <jpaquette at apple.com> wrote: > > Hi Eli, > >> I just tried some tests, and I'm

Hi Fellow R Users, I recently upgraded to Mac OS X 10.5 (Snow Leopard) and had some issues downloading and running R 2.10.1. I fixed the tcl/tk problem I was originally having but it was replaced with another. I run R out of the shell (terminal) and when I ask it to download.packages() it gives me the following message: *Loading Tcl/Tk interface ... done* *Error in file.info(x) : argument

> Porting the outliner on ARM is in my plans for this year (as discussed > with other ARM folks at EuroLLVM last week), to avoid duplication is > it ok for you if I work on it, David, Jessica ? Sounds good to me; an ARM target would be great! - Jessica > On Apr 26, 2018, at 2:17 AM, Yvan Roux <yvan.roux at linaro.org> wrote: > > Hi, > > On 25 April 2018 at

Dear R user, After I imported data (csv format) in R, I called it out. But it is in non-numeric format. Then using "as.numeric" function. However, the output is really awful !!!!! > PE[1,90:99] V90 V91 V92 V93 V94 V95 V96 V97 V98 V99 1 16.8467742 17.5853166 19.7400328 21.7277241

Hi All I have a column/variable called time difference. It has a whole list of numbers from 0 through to the hundreds eg 236. I want to assign a corresponding "name" to each variable from a predefined list: Month or less, 1 -2 months, 2-3 months etc So the result would look something like: Time Difference Month 1 Month or

Hi, I'm trying to get a plot that looks somewhat like the attached image (sketched in word). I think I need somthing called a rose diagram? but I can't get it to do what I want. I'm happy to use any library. Essentially, I want a circle with degree slices every 10 degrees with 0 at the top representing north, and 'tick marks' around the outside in 10 degree increments to

Dear all, I have a list of precipitation record and a list of time I would like to sum them up per hour, or per day. Does such a function exist ? example: time<-c("2000-10-03 14:00:00","2000-10-03 14:10:00","2000-10-03 14:20:00","2000-10-03 15:30:00","2000-10-03 16:40:00","2000-10-03 16:50:00","2000-10-03