Displaying 20 results from an estimated 2000 matches similar to: "Integrate and mapply"
2007 Nov 19
6
Reg : using two different matrix : how to do t.test
I have two matrix with same dimensions. I want to do t.test using each column from 2 different matrix.
Row n Column names in both matrix are same.
e.g.
Matrix1
id VC1 VC2 VC3
R 1 2 3
R1 4 5 6
R3 7 8 9
Matrix2
id VC1 VC2 VC3
R 10 11 12
R1 13 14 15
R3 16 17 18
want to do t.test using each column (with same name ) using Matrix1 and Matrix2
for eg
2009 Sep 21
4
Working around 256 byte variable names? + trouble opening large file
Dear R users,
I am trying to read in a file with 105 columns, and when trying to attach
it, get an error as follows:
> vc1<-read.table("P:\\R\\Everything-I.txt", header=T, sep=" ", dec=".",
na.strings=NA, strip.white=T)
> attach(vc1)
Error in attach(vc1) : variable names are limited to 256 bytes
Is there a way to get around this, and make R accept the
2015 Mar 17
2
GM206 support?
On Fri, Feb 13, 2015 at 9:52 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> On Fri, Feb 13, 2015 at 8:59 PM, Andy Lutomirski <luto at amacapital.net> wrote:
>> My new GTX 960 (GM206, I think) says:
>>
>> [ 10.329351] nouveau ![ DEVICE][0000:09:00.0] unknown Maxwell chipset
>> [ 10.329355] nouveau E[ DEVICE][0000:09:00.0] unknown chipset, 0x126010a1
2007 Nov 19
1
using two different matrix : how to do t.test
I have two matrix with same dimensions. I want to do t.test using each column
from 2 different matrix.
Column names in both matrix are same.
e.g.
Matrix1
id VC1 VC2 VC3
R 1 2 3
R1 4 5 6
R3 7 8 9
Matrix2
id VC1 VC2 VC3
R 10 11 12
R1 13 14 15
R3 16 17 18
want to do t.test
for eg t.test(Matrix1$VC1, Matrix2$VC1)$p.value
What is the best way to do it. I have dataset with
2024 Apr 23
1
System GMM yields identical results for any weighting matrix
A copy of this question can be found on Cross Validated:
https://stats.stackexchange.com/questions/645362
I am estimating a system of seemingly unrelated regressions (SUR) in R.
Each of the equations has one unique regressor and one common regressor. I
am using `gmm::sysGmm` and am experimenting with different weighting
matrices. I get the same results (point estimates, standard errors and
2006 Jun 30
2
aggregate data.frame by one column
Hi, everyone,
I have a data.frame named "eva" like this:
IND PARTNO VC1 EO1 EO2 EO3 EO4 EO5
114 114001 2 5 4 4 5 4
114 114001 2 4 4 4 4 4
114 114001 2 4 NA NA NA NA
112 112002 2 3 3 6 2 6
112 112002 2 1 1 3 4 4
112 112003 2 6 6 6 5 6
112 112003 2 5 7 6 6 6
112 112003 2 6 6 6 4 5
114 114004 2
2024 Apr 23
1
System GMM yields identical results for any weighting matrix
Generally speaking, this sort of detailed statistical question about a
speccial package in R does not get a reply on this general R
programming help list. Instead, I suggest you either email the
maintainer (found by ?maintainer) or ask a question on a relevant R
task view, such as
https://cran.r-project.org/web/views/Econometrics.html . (or any other
that you judge to be more appropriate).
2016 Mar 22
2
Question about GlobalOpt
Hi,
On my phone right now but I'll fish out the pertinent threads when I get to
the office. Keyword searches for 'norecurse' on llvm-dev will probably get
most of them.
Indeed, this correctness improvement caused a performance regression on
some programs. There is a way to revert to the old, broken behaviour:
'-mllvm -force-attribute=main:norecurse'. Given how many people run
2015 May 05
2
[LLVMdev] [RFC][PATCH] Adding absd/hadd/sad intrinsics
On 4 May 2015 at 08:37, Shahid, Asghar-ahmad
<Asghar-ahmad.Shahid at amd.com> wrote:
> My worry is regarding the query for cost calculation for specific SAD
> instructions such as ‘psad’ (X86) or ‘usad’ (ARM) in Loop Vectorizer.
Hi Shahid,
The vectorizer's cost model has the ability to return different costs
for the same instruction based on the arguments (scalar/vector,
2008 May 14
4
Accessing items in a list of lists
Using R 2.6.2, say I have the following list of lists, "comb":
data1 <- list(a = 1, b = 2, c = 3)
data2 <- list(a = 4, b = 5, c = 6)
data3 <- list(a = 3, b = 6, c = 9)
comb <- list(data1 = data1, data2 = data2, data3 = data3)
So that all names for the lowest level list are common. How can I most
efficiently access all of the sublist items "a" indexed by the outer
2009 Jun 10
2
How to get the unique pairs of a set of pairs dataframe ?
Hi friends,
Please can anyone help me with an easier solution of doing the below
mentioned work.
Suppose i have a dataset like this:---
i1 i2 i3 i4 i5
1 7 13 1 2
2 8 14 2 2
3 9 15 3 3
4 10 16 4 4
5 11 17 5 5
6 12 18 6 7
*i1,i2,i3,i4,i5 are my items.I am able to find all possible pairs i.e
Say this dataframe is "item_pairs"
**i1,i2
**i1,i3
**i1,i4
i1,i5
**i2,i1
2012 Jun 12
2
[LLVMdev] How to use LLVM optimizations with clang
Thanks alot. How can we view those optimization which are enabled when we do
llc -O3 comb.ll
Are these the same as the ones produced by the following command line
llvm-as < /dev/null | opt -O3 -disable-output -debug-pass=Arguments
Regards
Shahzad
On Tue, Jun 12, 2012 at 1:01 PM, Duncan Sands <baldrick at free.fr> wrote:
>> Yes. But how exactly code generation (optimized one)
2007 May 11
1
model seleciton by leave-one-out cross-validation
Hi, all
When I am using mle.cv(wle), I find a interesting problem: I can't do
leave-one-out cross-validation with mle.cv(wle). I will illustrate the
problem as following:
> xx=matrix(rnorm(20*3),ncol=3)
> bb=c(1,2,0)
> yy=xx%*%bb+rnorm(20,0,0.001)+0
> summary(mle.cv(yy~xx,split=nrow(xx)-1,monte.carlo=2*nrow(xx),verbose=T),
num.max=1)[[1]]
mle.cv: dimension of the split subsample
2012 Jun 12
2
[LLVMdev] How to use LLVM optimizations with clang
Thanks again.
I executed the following command line
llc -O3 comb.ll.bc -debug-pass=Arguments
and got
Pass Arguments: -targetdata -targetpassconfig -no-aa -tbaa
-targetlibinfo -basicaa -collector-metadata -machinemoduleinfo
-machine-branch-prob -preverify -domtree -verify -loops -loop-simplify
-scalar-evolution -loop-simplify -iv-users -loop-reduce -gc-lowering
-unreachableblockelim
2012 Jun 28
6
How can I make a list using aggregate function?
Hi friends,
I need to generate a list, that should contain the quantile value of one
column in a data frame. while I am compiling this one i am facing one bug,,
Really I cannot find out that where the problem has occurred? Could any one
help me to come out from this bug??
Here is the code,
data <- lapply(comb.data$zFE, function(x) aggregate(x,
2012 Jun 12
2
[LLVMdev] How to use LLVM optimizations with clang
Hi
Yes. But how exactly code generation (optimized one) be done without
clang. Is it possible that we can specify those optimization
(individual ones instead of standard ones like -O3) some how when
generating code as is done by clang or llc?
Regards
Shahzad
On Tue, Jun 12, 2012 at 12:42 PM, Duncan Sands <baldrick at free.fr> wrote:
> Hi, the reason is that lli does optimized code
2008 Oct 09
2
Help MLE
Dear,
I'm starting on R language. I would like some help to implement a MLE
function.
I wish to obtain the variables values (alpha12, w_g12, w_u12) that maximize
the function LL = Y*ln(alpha12 + g*w_g12 + u*w_u12).
Following the code:
rm(list=ls())
ls()
library(stats4)
Model = function(alpha12,w_g12,w_u12)
{
Y = 1
u = 0.5
g = -1
Y*log(alpha12 + g*w_g12 + u*w_u12)
}
res =
2003 Sep 25
1
apply on a 4D array
I am trying to multiply a 3D array of 4x4x4 by the 4 3D arrays of a 4D array
with dimensions 4x4x4x4 (the last dimension being the one that I want to
split by).
(4x4x4 array)
> hiaAry
, , a1
i1 i2 i3 i4
h1 9.5936098 6.001040 0.08772 0.3138600
h2 1.2003500 1.454570 2.79248 0.0000000
h3 0.1346500 0.201220 0.39256 0.5464000
h4 0.0109000 0.012270 0.16417 0.2766900
,
2010 Jul 19
1
divide grid.newpage into two?
Hi,
?
Is there some easy way to split the grid.newpage() into two columns? For example, how could I put the two forest plots below (meta1 and meta2) next to each other?
library(meta)
data(Olkin95)
meta1 <- metabin(event.e, n.e, event.c, n.c,data=Olkin95, subset=c(41,47,51,59),sm="RR", meth="I",studlab=author)
meta2=meta1
meta2$studlab=rep("",length(meta1$studlab)
2012 Jun 12
0
[LLVMdev] How to use LLVM optimizations with clang
Hi,
On 12/06/12 13:09, Abdul Wahid Memon wrote:
> Thanks alot. How can we view those optimization which are enabled when we do
>
> llc -O3 comb.ll
llc -O3 comb.ll -debug-pass=Arguments
>
> Are these the same as the ones produced by the following command line
no, as I mentioned before they are of a completely different nature
to the optimizations that opt does.
Ciao, Duncan.