Displaying 20 results from an estimated 5000 matches similar to: "test for difference between non-independent correlations"
2009 Dec 28
2
Modified R Code
Dear R helpers,
I have following input files. (Actually they are more than 10 rates but here i am considering only 2 rates to write my problem)
rate1.csv
min1 max1 min2 max2 min3 max3
1.05 1.30 1.30 1.65 1.65 1.99
rate2.csv
min1 max1 min2 max2 min3
2010 May 03
1
Comparing the correlations coefficient of two (very) dependent samples
Hello all,
I believe this can be done using bootstrap, but I am wondering if there is
some other way that might be used to tackle this.
#Let's say I have two pairs of samples:
set.seed(100)
s1 <- rnorm(100)
s2 <- s1 + rnorm(100)
x1 <- s1[1:99]
y1 <- s2[1:99]
x2 <- x1
y2 <- s2[2:100]
#And both yield the following two correlations:
cor(x1,y1) # 0.7568969 (cor1)
cor(x2,y2)
2011 Jun 30
2
sdev value returned by princomp function (used for PCA)
Dear all,
I have a question about the 'sdev' value returned by the princomp function (which does principal components analysis).
On the help page for princomp it says 'sdev' is 'the standard deviations of the principal components'.
However, when I calculate the principal components for the USArrests data set, I don't find this to be the case:
Here is how I
2004 Jul 20
3
regression slope
Hello,
I'm a newcomer to R so please
forgive me if this is a silly question.
It's that I have a linear regression:
fm <- lm (x ~ y)
and I want to test whether the
slope of the regression is significantly
less than 1. How can I do this in R?
I'm also interested in comparing the
slopes of two regressions:
fm1 <- lm (x ~ y)
fm2 <- lm (a ~ b)
and asking if the slope of fm1 is
2008 Nov 17
2
[LLVMdev] Does current LLVM target-independent code generator supports my strange chip?
I have a very strange and complicate H/W platform.
It has many registers in one format.
The register format is:
------------------------------
----------------------------------------------------------------------------------------
| 24-bit | 24-bit |
24-bit | 24-bit |
2008 Feb 26
8
[PATCH 0/8] RFC: ia64/xen TAKE 2: paravirtualization of hand written assembly code
Hi. I rewrote the patch according to the comments. I adopted generating
in-place code because it looks the quickest way.
The point Eddie wanted to discuss is how to generate code and its ABI.
i.e. in-place generating v.s. direct jump v.s. indirect function call
Indirect function call doesn't make sense because ivt.S is compiled
multi times. And it is up to pv instances to choose in-place
2008 Feb 26
8
[PATCH 0/8] RFC: ia64/xen TAKE 2: paravirtualization of hand written assembly code
Hi. I rewrote the patch according to the comments. I adopted generating
in-place code because it looks the quickest way.
The point Eddie wanted to discuss is how to generate code and its ABI.
i.e. in-place generating v.s. direct jump v.s. indirect function call
Indirect function call doesn't make sense because ivt.S is compiled
multi times. And it is up to pv instances to choose in-place
2007 Nov 22
3
question about extreme value distribution
Hello,
I have a question about using extreme
value distribution in R.
I have two variables, X and Y, and have pairs
of points (X1,Y1),(X2,Y2), (X3,Y3) etc.
When I plot X against Y, it looks
like the maximum value of Y (for a particular X) is
correlated with X.
Indeed, when I bin the data by X-value into
equally sized bins, and test whether the maximum
value of Y for a bin is correlated with
2004 Oct 29
3
missing values in logistic regression
Dear R help list,
I am trying to do a logistic regression
where I have a categorical response variable Y
and two numerical predictors X1 and X2. There
are quite a lot of missing values for predictor X2.
eg.,
Y X1 X2
red 0.6 0.2 *
red 0.5 0.2 *
red 0.5 NA
red 0.5 NA
green 0.2 0.1 *
green 0.1 NA
green 0.1 NA
green 0.05 0.05 *
I am wondering can I combine X1 and
2008 Feb 25
6
[PATCH 0/4] ia64/xen: paravirtualization of hand written assembly code
Hi. The patch I send before was too large so that it was dropped from
the maling list. I'm sending again with smaller size.
This patch set is the xen paravirtualization of hand written assenbly
code. And I expect that much clean up is necessary before merge.
We really need the feed back before starting actual clean up as Eddie
already said before.
Eddie discussed how to clean up and suggested
2008 Feb 25
6
[PATCH 0/4] ia64/xen: paravirtualization of hand written assembly code
Hi. The patch I send before was too large so that it was dropped from
the maling list. I'm sending again with smaller size.
This patch set is the xen paravirtualization of hand written assenbly
code. And I expect that much clean up is necessary before merge.
We really need the feed back before starting actual clean up as Eddie
already said before.
Eddie discussed how to clean up and suggested
2008 Nov 20
4
[LLVMdev] Does current LLVM target-independent code generator supports my strange chip?
Because each channel contains 24-bit, so.. what is the
llvm::SimpleValueType I should use for each channel?
the current llvm::SimpleValueType contains i1, i8, i16, i32, i64, f32,
f64, f80, none of them are fit one channel (24-bit).
I think I can use i32 or f32 to represent each 24-bit channel, if the
runtime result of some machine instructions exceeds 23-bit (1 bit is
for sign), then it is an
2011 Dec 03
1
partial mantel tests in ecodist with intential NA values.
I would like to perform partial mantel tests on only within group values, with "between group" values assigned to NA.
This is possible in package ncf partial.mantel.test, however this sues a different permutation to that used in ecodist.ecodist will not accept data with NA values, returning a "matrix is not square error.
is it possible to perform this test in ecodist?
many thanks
2004 Aug 06
1
Encrypted password problem with icecast 1.3.11
I have tried these steps and the encryption on the console still does not
seem to validate? Any other thoughts? Thanks,
Tom
-----Original Message-----
From: Jerome Alet [mailto:alet@unice.fr]
Sent: Tuesday, November 20, 2001 3:50 PM
To: icecast@xiph.org
Subject: Re: [icecast] Encrypted password problem with icecast 1.3.11
On Mon, Nov 19, 2001 at 12:03:53PM -0500, Thomas Steiger wrote:
> I
2008 Nov 18
0
[LLVMdev] Does current LLVM target-independent code generator supports my strange chip?
Why not model each channel as a separate physical register?
Evan
On Nov 17, 2008, at 6:36 AM, Wei wrote:
> I have a very strange and complicate H/W platform.
> It has many registers in one format.
> The register format is:
>
> ------------------------------
> ----------------------------------------------------------------------------------------
> | 24-bit
2004 Aug 06
1
Encrypted password problem with icecast 1.3.11
This is what I get when I do ldd on the icecast binary.
[root@gala bin]# ldd icecast
libcrypt.so.1 => /lib/libcrypt.so.1 (0x0ffb3000)
libm.so.6 => /lib/libm.so.6 (0x0ff65000)
libpthread.so.0 => /lib/libpthread.so.0 (0x0ff2e000)
libc.so.6 => /lib/libc.so.6 (0x0fde9000)
/lib/ld.so.1 => /lib/ld.so.1 (0x30000000)
[root@gala bin]#
It looks like
2010 Jun 15
2
[LLVMdev] Question on X86 backend
Hi Micah,
> In X86InstrInfo.td for Call Instructions, it mentions that Uses for
> argument registers are added manually. Can someone point me to the
> location where they are added as the comment doesn't reference a
> where or how?
the register uses are added by the function
X86TargetLowering::LowerCall() during the DAG Lowering phase. This is
the relevant code segment:
// Add
2008 Nov 21
0
[LLVMdev] Does current LLVM target-independent code generator supports my strange chip?
24 bit is not unusual in the DSP world. I suppose int == 24 bit
integer for some of these chips?
There isn't a i24 simple type. However, you can create an extended
integer type. See getExtendedIntegerVT. It's almost guaranteed you
will have to change a chunk of target independent codegen to support
the use of an extended type though.
Evan
On Nov 20, 2008, at 4:46 AM, Wei wrote:
2004 Mar 02
1
Immediate crash on Mac OS X 10.2.8
Hello,
I don't know very much about Macs, so may have missed some obvious steps,
but I downloaded version 1.8.1 of RAqua.dmg and installed from the R
package file. The Start R icon appeared in the applications directory,
but crashed immediately on opening. Here is the log file:
Date/Time: 2004-03-03 08:32:27 +1100
OS Version: 10.2.8 (Build 6R73)
Host: Kylie-Kings-Computer.local.
2010 Feb 10
4
Readjusting the OUTPUT csv file
Dear R helpers
I have some variables say ABC, DEF, PQR, LMN and XYZ. I am choosing any three varaibles at random at a time for my analysis and name these files as input1.csv, input2.csv and input3.csv. So if I choose variables say ABC, DEF and PQR, I am passing the specifications of these variables to input1.csv, input2.csv and input3.csv respectively.
This means in another case even if I