Displaying 20 results from an estimated 10000 matches similar to: "Correct Syntax for a Loop"
2004 Nov 28
0
Re: [R-sig-finance] syntax for a loop
I don't think I understand you entirely, but here are a couple
things.
You need to shorten the loop so you don't run off the end.
You basically just write the code as you've stated it except that
"and" is && for single values and & for vectors
You don't say what should happen if the test is not true.
You can probably use "ifelse" instead of a
2007 Apr 25
1
help
Hi all,
I have 2 questions:
1)How do I calculate the mean on an imported txt file? I've imported the
file below and that's what it looks like imported. How do I then calcuate
the mean, median, or mode on the column LeafArea using the desktop R
package?
Any help would be greatly appreciated!!
Thanks,
Nat
LeafType Leaflets LeafArea ShapeRatio LeafWeight LeafThickness
1 1
2012 Sep 28
2
Converting array to matrix
Hi,
I have a 3d array as below, I want to make this array to a matrix of p=50(rows) and n=20(columns) with the coverage values .
The code before the array is:
library(binom)
Loading required package: lattice
pi.seq<-seq(from = 0.01, to = 0.5, by = 0.01)
no.seq<-seq(from = 5, to = 100, by = 5)
cp.all = binom.coverage( p = pi.seq, n = no.seq , conf.level = 0.95, method = "exact")
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 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
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
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 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
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,
2004 Nov 30
1
xy_plot
R users;
Does anyone have a recommendation for a faster
plotting function rather than plot(x,y)?
when I use plot(x,y) for a large number of variables,
it take couple of moments to plot the graph?
Sincerely,
Sean
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
2007 Sep 18
10
Routes
hi all,
I want to move some routing tasks out of the router and into the
controller. The goal is to make Merb feel less like mod_rewrite and
give the user more control at the controller. The new Router is
simple: it takes the path_info (not the whole request) then outputs a
controller class and some parameters from the path matching. The rest
of the routing would be done at the controller level.
2004 Nov 23
2
How to extract data?
I appreciate if anyone can help me,
I have a table as follow,
> rate
DATE VALUE
1 1997-01-10 5.30
2 1997-01-17 5.30
3 1997-01-24 5.28
4 1997-01-31 5.30
5 1997-02-07 5.29
6 1997-02-14 5.26
7 1997-02-21 5.24
8 1997-02-28 5.26
9 1997-03-07 5.30
10 1997-03-14 5.30
. ...... ...
. ...... ...
. ...... ...
I want to extract the DATE(s) on
2007 May 25
9
Scaling Asterisk: Dual-Core CPUs not yielding gains at high call volumes
List users,
Using Asterisk in an inbound call center environment has led us to
pushing the limits of vertical scaling. In order to treat each caller
fairly and to utilize our agents as efficiently as possible, it is
desirable to configure each client as a single queue. As far as I know,
Asterisk's queues cannot be distributed across servers, so the size of
the largest queue we service
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 Aug 02
1
ordering columns (longitudinal data in wide format)
Hi,
I am working on some longitudinal data in wide format and I am having a problem ordering the data columns. To expand, a subset of what I am working on is as follows;
>s
L.qol.0 L.qol.0.08 L.qol.0.17 L.qol.0.25 L.qol.0.5 L.qol.0.42 L.qol.0.34
1 83 86 89 92 91 87 90
>names(s)
[1] "L.qol.0" "L.qol.0.08"
2008 Jan 28
2
matrix creation
Hello,
I am trying to create multiple matrices (to run a PVA) but can't import all
of them from a .csv without the numbers treated as labels and not factors.
I can enter the matrix slowly:
Site05_96 <- matrix(c(0.07,0,0.03,0.00,NA,0.00,
0.09,0.166666667,0.31,0.42,NA,0.00, 0.00,0,0.00,0.00,NA,0.00,
0.00,0,0.00,0.00,NA,0.00,
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
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
2008 Jun 26
1
How to turn Time Series daily values into weekly means (aggregate?)
#this is a daily series of precipitation data. I would like to condense it
into weekly means. How can I do this
#as a side note I would like to do this same thing to two years worth of
fifteen minute interval data and make it into
#a series of daily averages (there are 96 readings per day)
#is aggregate the right function? or...
y <- c(1.23, 0, 0, 0, 0, 0, 0, 0, 0, 0.27, 0, 0.29, 0, 0, 0,