similar to: sum elements of dataframe

Displaying 20 results from an estimated 10000 matches similar to: "sum elements of dataframe"

2000 Feb 21
2
read.table and factor
I have a data file like this: std cf hit miss fa cr 920 980 40 15 14 31 950 1010 24 23 23 30 1190 1250 26 21 27 26 1010 1070 33 10 28 29 1040 1100 35 10 11 44 I use read.table to read it in. My problem is that read.table makes std and cf into factors. I want them just
2010 Mar 25
3
Returning Data Frame from Function for use Outside Function
I have a function (see below) that does some bootstrapping (I am happy to expand offline why I could use existing functions.) I put my results into and empty matrix and add a row of results with each iteration. My problem is i am a new user to R and I don't understand data frames, matrices, elements, and vectors well. What I would like is to have a data frame I can manipulate outside of the
2010 Mar 25
0
Counting a number of "elements" in an object
I apologize if this has been answered. I have researched this to the best of my ability, that's not to say the answer isn't in the archives just I am a new user and I don't know the proper terms to search under. I have an object: f <- mpr100 ~ time + nhb + hispanic + other + rural + hrural + factor(age) + factor(gender) +
2007 Mar 06
3
Is there a quick way to count the number of times each element in a vector appears?
Hi there, I'm writing a function that calculates the probability of different outcomes of dice rolls (e.g., the sum of the highest three rolls of five six-sided dice). I'm using the "combinations" function from the "gtools" package, which is great: it gives me a matrix with all of the possible combinations (with repetitions allowed). Now I want to count the number
2006 May 08
3
Non repetitive permutations/combinations of elements
Hello all, I am trying to create a matrix of 1s and -1s without any repetitions for a specified number of columns. e.g. 1s and -1s for 3 columns can be done uniquely in 2^3 ways. -1 -1 -1 -1 -1 1 -1 1 -1 -1 1 1 1 -1 -1 1 -1 1 1 1 -1 1 1 1 and for 4 columns in 2^4 ways and so on. I finally used the function combn([0 1],3) that I found at the following link
2013 Jun 05
2
reshape2 issue continued
Hi again all, Several replied ASAP that I also needed reshape loaded and not just reshape2. Hmmm tried that and I had some output but not the correct format. What I need is to run simulations of time overlap between species as per the simulation program data input constraints: The basis for the simulations is a species by _time-use matrix in which species are arranged in rows, and time
2015 Jun 18
2
[LLVMdev] Contributing a buildbot for the BPF backend
Thank you. Alexei just committed the change to SVN. Regards, Marco Leogrande Sent by a carbon-based life form; hence, it may contain repetitions, inaccuracies, logical fallacies and repetitions. On Wed, Jun 17, 2015 at 2:52 PM, Galina Kistanova <gkistanova at gmail.com> wrote: > LGTM. > Please commit. > > Thanks > > Galina > > On Tue, Jun 16, 2015 at 8:32 PM,
2015 Jun 17
2
[LLVMdev] Contributing a buildbot for the BPF backend
Galina, thanks again for your help. I have cooked a new patch that should make a bit more sense. I have added the new builder under _get_experimental_scheduled_builders(), as the comment above that function suggested me it would be a good idea. :) Does it look a reasonable start? Regards, Marco Leogrande Sent by a carbon-based life form; hence, it may contain repetitions, inaccuracies,
2010 Apr 27
2
Curve Fitting/Regression with Multiple Observations
I recently came to realize the true power of R for statistical analysis -- mainly for post-processing of data from large-scale simulations -- and have been converting many of existing Python(SciPy) scripts to those based on R and/or Perl. In the middle of this conversion, I revisited the problem of curve fitting for simulation data with multiple observations resulting from repetitions. In the
2015 Nov 14
2
Inexplicable ASAN report. Code generation bug?
On Thu, Nov 12, 2015 at 8:42 PM, Kostya Serebryany <kcc at google.com> wrote: > 2 questions: > - Do you see this with the fresh llvm trunk? > - Can you prepare a minimized example? Pretty recent, I updated a couple days ago. I tried to minimize the attached but at the same time I didn't want to lose too many unions and casts in case it didn't trigger any more. $ clang
2012 Nov 02
1
[LLVMdev] linker warnings in Linking CXX executable Debug/AsanTest
On Fri, Nov 02, 2012 at 06:45:07PM +0400, Alexey Samsonov wrote: > Hi, Jack! > > > I'll take a look at this. However, tests below fail for a different reason > (they don't use Debug/AsanTest at all). > How do you configure a CMake build tree? Can you somehow get (or run > manually) the script which is used > for running log-path_test.cc and other failing test
2017 Oct 31
2
[Bug 13112] New: receive_xattr heap overread with non null terminated name and xattr filter
https://bugzilla.samba.org/show_bug.cgi?id=13112 Bug ID: 13112 Summary: receive_xattr heap overread with non null terminated name and xattr filter Product: rsync Version: 3.1.3 Hardware: All OS: All Status: NEW Severity: normal Priority: P5 Component: core
2012 Dec 17
1
subset handling
Dear Rui and UseRs,[a text file has also been attached, in case the format of my email is difficult to get]I am extremely sorry that I am bothering you once again, but I?ll have to get to the bottom of it. The following command sp <- lapply(split(agg, agg$st), function(x) x[order(x$year, x$month), ]) gave me an output with monthly mean of population(as under). i am not able to apply
2008 Aug 15
2
Combination with repetition
Hi there! I can't find any information about creating combinations with repetitions in R. The function combn() does create combinations, but _without_ repetitions. Here is what I need to do: svIter <- 1000 xx <- matrix(rnorm(m*n), c(m, n)) sequence <- seq(range(xx)[1], range(xx)[2], length.out = svIter^(1/q)) expand.grid(secuence, secuence, .../q times/..., secuence) That is,
2015 Jun 10
2
[LLVMdev] Contributing a buildbot for the BPF backend
Hello Marco, Welcome aboard! slaves.py keeps the build slaves definitions, builders.py keeps the builders definitions. You have to have both. The steps of adding a new slave is here: http://llvm.org/docs/HowToAddABuilder.html. Please make sure you done the step # 10 before bringing your slave up, otherwise it wouldn't be authorized by the master and will be blacklisted after multiple
2020 Aug 31
2
Vectorization of math function failed?
Hi, After reading https://llvm.org/docs/Vectorizers.html#vectorization-of-function-calls I decided to write the following C++ program: #include <cmath> using v4f32 = float __attribute__((__vector_size__(16))); v4f32 fct1(v4f32 x) { v4f32 y; y[0] = std::sin(x[0]); y[1] = std::sin(x[1]); y[2] = std::sin(x[2]); y[3] = std::sin(x[3]); return y; } v4f32 fct2(v4f32 x) { v4f32 y;
2016 Jan 22
2
Clang 3.8 fails with asan enabled
Kostya, all, I'm trying to build my project by clang 3.8rc1 with enabled asan (clang itself is address sanitized) and it fails on several files from my project (ISPC, https://github.com/ispc/ispc). I've reproduced this on MacOS and Linux. Please let me know if you need any other info. How to reproduce: 1) Build address sanitized clang 3.8rc1: cd /path-to-working-dir svn co
2006 Jun 29
2
Biobass, SAGx, and Jonckheere-Terpstra test
Hi list, I tried to load the package SAGx and failed because it complains it's looking for the Biobass which is not there. Then I looked up the package list and Biobass is not found. I'm trying to run the Jonckheere-Terpstra test and from what I see in the R archive, SAGx is the only place it's been implemented. > library(SAGx) Loading required package: multtest Loading required
2004 Jun 01
2
Problem in random (lme)
In a lattice 11x11 with 6 repetitions, we want to compare lines to their two parents. 3 of the 6 repetitions are sprinkled and the 3 others not. There are 5 factors : hm (hydrous mode), variety, block, rep and grandrep. grandrep gathers two repetition, a sprinkled and a not (as in Split Plot !). I use lme but I have problems in random. Can someone help me ? Ibnou DIENG
2005 Feb 18
5
FXTable segfaults after multiple setTableSize calls
When I empty and refill an FXTable multiple times with a large data set (10,000 rows x 1 column in the example below, around 1000 rows x 6 columns in a more complicated app), the application eventually fails with a segmentation fault. The number of repetitions required to produce the segfault is rather random, ranging from just a couple reps to 15 or 20 in some trials. The program disappears