Displaying 20 results from an estimated 6000 matches similar to: "How to get predicted values of y for different x values?"
2012 Sep 04
1
binary data
Dear list,
Hello to everybody, I´m interested in finding a package for statistical analysis of binary data, I have a matrix with the following structure:
Case1 Case2 Case 3 ....... CaseX Control1 Control2 Control3 ....... ControlY
Pep1 1 0 1 1 0 0 0 1
Pep2 1 1 1 1 1 0 0 1
Pep3 0 1 1 1 1 0 0 1
...
Pepz 1 1 1 1 1 0 0 1
I would like to know some R package to calculte similarity matrix or
2012 Aug 23
3
Please help....normalization by the median of some control genes
Can someone show me some code to do normalization by the median of some control genes for the example below?
Many Many Thanks in advance
This strategy selects a subset of genes (called ?control genes?) and makes the median of their data distribution similar across arrays.
??? ??? id1??? id2??? id3
control1??? 0.8??? 0.7??? 0.6
control2??? 0.6??? 0.2??? 0.4
probe1??? ??? 0.3??? 0.2??? 0.5
2003 May 22
1
Experimental Design
I don't know if this is the best place to post this question but I will
try anyway. I have two experiements for which I use one-way
matched-randomized ANOVA for the analysis and I would like to compare
different treatments in the two experiments. The only common group in
the two experiments are the controls. Is there any ANOVA design that
allows me to make this comparison taking into
2016 Dec 14
4
Enabling scalarized conditional stores in the loop vectorizer
I haven't verified what Matt described is what actually happens, but
assuming it is - that is a known issue in the x86 cost model.
Vectorizing interleaved memory accesses on x86 was, until recently,
disabled by default. It's been enabled since r284779, but the cost model is
very conservative, and basically assumes we're going to scalarize
interleaved ops.
I believe Farhana is working
2016 Dec 14
0
Enabling scalarized conditional stores in the loop vectorizer
Hi Michael-
Since you bring up libquantum performance can you let me know what the IR will look like for this small code snippet (libquantum-like) with –enable-cond-stores-vec ? I ask because I don’t see vectorization kicking in unless -force-vector-width=<> is specified. Let me know if I am missing something.
-Thx
struct nodeTy
{
unsigned int c1;
unsigned int c2;
unsigned
2016 Dec 14
2
Enabling scalarized conditional stores in the loop vectorizer
Hi Dibyendu,
Are you using a recent compiler? What architecture are you targeting? The
target will determine whether the vectorizer thinks vectorization is
profitable without having to manually force the vector width.
For example, top-of-trunk vectorizes your snippet with "clang -O2 -mllvm
-enable-cond-stores-vec" and "--target=aarch64-unknown-linux-gnu". However,
with
2016 Dec 14
0
Enabling scalarized conditional stores in the loop vectorizer
Hi Matt-
Yeah I used a pretty recent llvm (post 3.9) on an x86-64 ( both AMD and Intel ).
-dibyendu
From: Matthew Simpson [mailto:mssimpso at codeaurora.org]
Sent: Wednesday, December 14, 2016 10:03 PM
To: Das, Dibyendu <Dibyendu.Das at amd.com>
Cc: Michael Kuperstein <mkuper at google.com>; llvm-dev at lists.llvm.org
Subject: Re: [llvm-dev] Enabling scalarized conditional stores in
2016 Dec 15
0
Enabling scalarized conditional stores in the loop vectorizer
If there are no objections, I'll submit a patch for review that sets the
default value of "-enable-cond-stores-vec" to "true". Thanks!
-- Matt
On Wed, Dec 14, 2016 at 12:55 PM, Michael Kuperstein via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> I haven't verified what Matt described is what actually happens, but
> assuming it is - that is a known
2016 Dec 15
0
Enabling scalarized conditional stores in the loop vectorizer
Thanks Michael and Dibyendu for doing the experimentation and bringing this up to our attention. It might be the case what Matt described here. I will take a look at it.
Farhana
From: Michael Kuperstein [mailto:mkuper at google.com]
Sent: Wednesday, December 14, 2016 9:56 AM
To: Das, Dibyendu <Dibyendu.Das at amd.com>; Aleen, Farhana A <farhana.a.aleen at intel.com>
Cc: Matthew
2018 Apr 06
1
Fast tau-estimator line does not appear on the plot
R-experts,
I have fitted many different lines. The fast-tau estimator (yellow line) seems strange to me?because this yellow line is not at all in agreement with the other lines (reverse slope, I mean the yellow line has a positive slope and the other ones have negative slope).
Is there something wrong in my R code ? Is it because the Y variable is 1 vector and should be a matrix ?
Here is the
2018 Apr 07
0
Fast tau-estimator line does not appear on the plot
You need to pay attention to the documentation more closely. If you don't
know what something means, that is usually a signal that you need to study
more... in this case about the difference between an input variable and a
design (model) matrix. This is a concept from the standard linear algebra
formulation for regression equations. (Note that I have never used RobPer,
nor do I regularly
2017 Dec 02
0
How can you find the optimal number of values to randomly sample to optimize random forest classification without trial and error?
I have data set up like the following:
control1 <- sample(1:75, 3947398, replace=TRUE)
control2 <- sample(1:75, 28793, replace=TRUE)
control3 <- sample(1:100, 392733, replace=TRUE)
control4 <- sample(1:75, 858383, replace=TRUE)
patient1 <- sample(1:100, 28048, replace=TRUE)
patient2 <- sample(1:50, 80400, replace=TRUE)
patient3 <- sample(1:100, 48239, replace=TRUE)
control
2016 Dec 13
4
Enabling scalarized conditional stores in the loop vectorizer
Hi Michael,
Thanks for testing this on your benchmarks and target. I think the results
will help guide the direction we go. I tested the feature with spec2k/2k6
on AArch64/Kryo and saw minor performance swings, aside from a large (30%)
improvement in spec2k6/libquantum. The primary loop in that benchmark has a
conditional store, so I expected it to benefit.
Regarding the cost model, I think the
2006 Sep 14
2
Adding predicted values as a new variable in a data frame
I am running a regression:
ols.reg1 <- lm(y ~ x1 + x2 + x3 + x4)
on a data.frame
and then generating fitted values:
y.hat <- ols.reg1$fitted.values
Then I would like to add these fitted values to the data.frame as a
new variable. The problem is that when the values are predicted the
resulting output has too few rows. for some reason certian
observations do not get predicted values. So
2009 Mar 09
1
predict.glm predicted prob above 1?
I have a puzzle....
When I include an interaction in the model, many predicted probabilities are above 1. Is that a problem with my model? I thought the predicted prob can't be bigger than 1...
Any help would be really appreciated! Thanks!
K.
reg1<-glm(pyea~male+edu+married+inc+relig+factor(time)+
factor(time)*male, data=mydata, family=binomial(link="logit"))
2007 Dec 05
1
Working with "ts" objects
I am relatively new to R and object oriented programming. I have relied on
SAS for most of my data analysis. I teach an introductory undergraduate
forecasting course using the Diebold text and I am considering using R in
addition to SAS and Eviews in the course. I work primarily with univariate
or multivariate time series data. I am having a great deal of difficulty
understanding and working with
2010 Jan 16
2
predict.glm
Hi,
See below I reply your message for <https://stat.ethz.ch/pipermail/r-help/2008-April/160966.html>[R] predict.glm & newdata posted on Fri Apr 4 21:02:24 CEST 2008
You say it ##works fine but it does not: if you look at the length of yhat2, you will find 100 and not 200 as expected. In fact predict(reg1, data=x2) gives the same results as predict(reg1).
So I am still looking for
2017 Feb 02
3
Register allocator behaves differently when compiling with and without -g
Hi all,
In several of our tests, I have noticed that the register allocator
allocates to virtual registers in a different order when compiling with the
clang option -g. Before entering the register allocator, the code is
identical when compiling with and without -g (with the exception of "
DBG_VALUE" instructions). The only difference I can see is the value
assigned to the slot index
2012 Apr 30
1
question on jitter in plot.Predict in rms
Dear colleagues,
I have a question regarding controlling the jitter when plotting
predictions in the rms package. Below I've simulated some data that
reflect what I'm working with. The model predicts a continuous variable
with an ordinal score, a two-level group, and a continuous covariate. Of
primary interest is a plot of the group by score interaction, where the
score is the ordinal
2009 Jan 19
2
[LLVMdev] HazardRecognizer and RegisterAllocation
Hi list,
in our LLVM-based-project we are writing a backend for our processor. The
architecture is a quite straight-forward RISC, but it does not have
hardware interlocks, i.e. data hazards involving memory access must be
resolved by the compiler, either by scheduling unrelated instructions or
by inserting NOOPs into the load delay slots:
----
For example, code which looks like that:
load