Displaying 20 results from an estimated 10000 matches similar to: "Compute rank within factor groups"
2012 Jul 30
2
distance matrix and hclustering
Dear R Users,i am very new to R. I want your help on an issue regarding distance matrix and cluster analysis
i had discharge data of 4 rivers(a,b,c,d) in 4 vectors each having 364 values
> dput(qmu)structure(list(a = c(0.26, 0.25, 0.25, 0.25, 0.24, 0.23, 0.22, 0.21, 0.21, 0.21, 0.2, 0.19, 0.19, 0.19, 0.19, 0.18, 0.18, 0.18, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17, 0.17,
2013 Mar 06
3
About basic logical operators
Hello everyone,
I have a basic question regarding logical operators.
> x<-seq(-1,1,by=0.02)
> x
[1] -1.00 -0.98 -0.96 -0.94 -0.92 -0.90 -0.88 -0.86 -0.84 -0.82 -0.80 -0.78
[13] -0.76 -0.74 -0.72 -0.70 -0.68 -0.66 -0.64 -0.62 -0.60 -0.58 -0.56 -0.54
[25] -0.52 -0.50 -0.48 -0.46 -0.44 -0.42 -0.40 -0.38 -0.36 -0.34 -0.32 -0.30
[37] -0.28 -0.26 -0.24 -0.22 -0.20 -0.18 -0.16
2013 May 23
1
sample(c(0, 1)...) vs. rbinom
Greetings.? My wife is teaching an introductory stat class at UC Davis.? The
class emphasizes the use of simulations, rather than mathematics, to get
insight into statistics, and R is the mandated tool.?? A student in the class
recently inquired about different approaches to sampling from a binomial
distribution.? I've appended some code that exhibits the idea, the gist of
which is that using
2010 Mar 31
1
Weird R behaviour?
Dear list,
I have observed a weird behaviour from R --- apologies if I am missing
something obvious!
df3f826f28
df3f826f28
Say you type in R:
>c.preec <- 10074
>c.gd <- 2200
>p1 <- .2
>c.neo <- p1*9451 + (1-p1)*3883
>n.preec <- 3710
>n.gd <- 2650
>n.neo <- 2120
>n.pcos <- 53000
>unit.met <- 94
>cost.met <- 94*n.pcos
>effect <-
2013 May 15
1
x and y lengths differ
I have a problem with R. I try to compute the confidence interval for my
df. When I want to create the plot I have this problem: Error in
xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ.
I try this code:
library(dplR)
df.rwi <- detrend(rwl = df, method = "Spline",nyrs=NULL)
write.table(df.rwi,file="rwi.txt",quote=FALSE,row.names=TRUE)
2012 Jul 06
3
estimating NA values against selected slots
Dear R Users,
Could you please help me on the following issue?
I have a real large yearly data set. For each year I have
365 flow values. Some of the flow values are not known and that’s why you will
see NA written in those slots. I wanted to know, is there a way that I can
estimate those values? I tried approx command but it seems least helpful for
the kind of issue I am up against.
2012 Jul 10
2
estimation of NA by predict command
Dear arun and all R users,
I will first of all try to simply define my issue..
I have data in the following format
Year Discharge
dd/mm/yyyy x
.. …
… …
There are some NA values in the discharge which I would like to predict by using “predict command”. I cant figure out the way to write the coding for that. Could you please help me on that???
I have also ,written
2012 Oct 06
3
vector is not assigned correctly in for loop
Hi there,
Here is a minimum working example:
----------------------------------------------------------------
lower = 0
upper = 1
n_bins = 50
interval = (upper - lower) / n_bins
bins = vector(mode="numeric", length=n_bins)
breaks = seq(from=lower + interval, to=upper, by=interval)
for(idx in breaks)
{
bins[idx / interval] = idx
}
print(bins)
2003 May 05
3
polr in MASS
Hi, I am trying to test the proportional-odds model using the "polr" function in the MASS library with the dataset of "housing" contained in the MASS book ("Sat" (factor: low, medium, high) is the dependent variable, "Infl" (low, medium, high), "Type" (tower, apartment, atrium, terrace) and "Cont" (low, high) are the predictor variables
2009 Oct 20
0
[LLVMdev] 2.6 pre-release2 ready for testing
Hi Tanya,
> 1) Compile llvm from source and untar the llvm-test in the projects
> directory (name it llvm-test or test-suite). Choose to use a
> pre-compiled llvm-gcc or re-compile it yourself.
I compiled llvm and llvm-gcc with separate objects directories.
Platform is x86_64-linux-gnu.
> 2) Run make check, report any failures (FAIL or unexpected pass). Note
> that you need to
2011 Jan 21
4
clustering fuzzy
hello,
i'm pete ,how can i order rows of matrix by max to min value?
I have a matrix of membership degrees, with 82 (i) rows and K coloumns, K
are clusters.
I need first and second largest elements of the i-th row.
for example
1 0.66 0.04 0.01 0.30
2 0.02 0.89 0.09 0.00
3 0.06 0.92 0.01 0.01
4 0.07 0.71 0.21 0.01
5 0.10 0.85 0.04 0.01
6 0.91 0.04 0.02 0.02
7 0.00 0.01 0.98 0.00
8 0.02
2016 May 25
1
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
On 2016-05-25 19:13, Kelly Lesperance wrote:
> Hdparm didn?t get far:
>
> [root at r1k1 ~] # hdparm -tT /dev/sda
>
> /dev/sda:
> Timing cached reads: Alarm clock
> [root at r1k1 ~] #
Hi Kelly,
Try running 'iostat -xdmc 1'. Look for a single drive that has
substantially greater await than ~10msec. If all the drives
except one are taking 6-8msec, but one is very
2008 Dec 06
1
Morlet wavelet not supportd by wavCWTPeaks
aa <- (structure(list(X.0.85 = c(-1.02, -1.17, -1.29, -1.39, -1.46,
-1.5, -1.52, -1.5, -1.46, -1.39, -1.3, -1.19, -1.07, -0.93, -0.79,
-0.65, -0.5, -0.36, -0.22, -0.08, 0.05, 0.18, 0.3, 0.41, 0.52,
0.62, 0.72, 0.81, 0.89, 0.98, 1.05, 1.13, 1.19, 1.25, 1.29, 1.31,
1.31, 1.29, 1.24, 1.16, 1.06, 0.93, 0.77, 0.58, 0.38, 0.16, -0.07,
-0.31, -0.89, -1.05, -1.19, -1.31, -1.41, -1.47, -1.51, -1.51,
2009 Oct 17
12
[LLVMdev] 2.6 pre-release2 ready for testing
LLVMers,
2.6 pre-release2 is ready to be tested by the community.
http://llvm.org/prereleases/2.6/
If you have time, I'd appreciate anyone who can help test the release.
To test llvm-gcc:
1) Compile llvm from source and untar the llvm-test in the projects
directory (name it llvm-test or test-suite). Choose to use a pre-
compiled llvm-gcc or re-compile it yourself.
2) Run make check,
2006 Jun 19
4
Qurey : How to add trendline( st. line) in Graph
How to add trendline (i.e. straight line passing through maximum points)
in graph.
I have worked on the data given below.
Please tell me how to add trendline in the graph.
The script is as follows
=================================== start
====================================================
# The data is as follows
data <- c( 0.01, 0.02, 0.04, 0.13, 0.17 , 0.19 , 0.21 , 0.27 , 0.27 ,
2010 Feb 17
2
extract the data that match
Hi r-users,
I would like to extract the data that match. Attached is my data:
I'm interested in matchind the value in column 'intg' with value in column 'rand_no'
> cbind(z=z,intg=dd,rand_no = rr)
z intg rand_no
[1,] 0.00 0.000 0.001
[2,] 0.01 0.000 0.002
[3,] 0.02 0.000 0.002
[4,] 0.03 0.000 0.003
[5,] 0.04 0.000 0.003
[6,]
2017 Feb 02
2
(RFC) Adjusting default loop fully unroll threshold
> On Feb 1, 2017, at 4:57 PM, Xinliang David Li via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> clang, chrome, and some internal large apps are good candidates for size metrics.
I'd also add the standard LLVM testsuite just because it's the suite everyone in the community can use.
Michael
>
> David
>
> On Wed, Feb 1, 2017 at 4:47 PM, Chandler Carruth via
2008 Jan 24
6
[LLVMdev] 2.2 Prerelease available for testing
LLVMers,
The 2.2 prerelease is now available for testing:
http://llvm.org/prereleases/2.2/
If anyone can help test this release, I ask that you do the following:
1) Build llvm and llvm-gcc (or use a binary). You may build release
(default) or debug. You may pick llvm-gcc-4.0, llvm-gcc-4.2, or both.
2) Run 'make check'.
3) In llvm-test, run 'make TEST=nightly report'.
4) When
2007 Oct 22
2
Help interpreting output of Rprof
Hello there,
I am not quite sure how to interpret the output of Rprof (in the following the output I was staring at). I was poking around the web a little bit for documentation but without much success. I guess if I want to figure out what takes so long in my code the 2nd table $by.total and the total.pct column (pct = percent) is the most helpful. What does it mean that [ or [.data.frame is
2009 Oct 20
1
[LLVMdev] 2.6 pre-release2 ready for testing
G'Day Tanya,
Is it too late to bring in the following patches to fix some major
brokenness in the AuroraUX tool chain for 2.6?
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?r1=84468&r2=84469&view=diff&pathrev=84469
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?r1=84265&r2=84266&view=diff&pathrev=84266