search for: estimate

Displaying 20 results from an estimated 12198 matches for "estimate".

2015 Aug 05
2
Fwd: How to use CostModel?
...mailing list address... ---------- Forwarded message ---------- From: Stephen Thomas <stephen.warner.thomas at gmail.com> Date: Wed, Aug 5, 2015 at 10:39 AM Subject: How to use CostModel? To: LLVM Dev <llvmdev at cs.uiuc.edu> Hi, I'm trying to use the built-in CostModel class to estimate the number of machine instructions for each IR Instruction. To get a feel for what kind of output the CostModel pass gives, I ran it on the command line like so: $ cat test.c int main(){ int r = rand(); if (r > 1){ return ++r; } return r*86; } $ clang-3.6 -S -emit-llvm...
2014 Jan 16
3
[LLVMdev] Loop unrolling opportunity in SPEC's libquantum with profile info
...itable. Specifically: LV: Checking a loop in "quantum_sigma_x" LV: Found a loop: for.body LV: Found an induction variable. LV: Found a write-only loop! LV: We can vectorize this loop! LV: Found trip count: 0 LV: The Widest type: 64 bits. LV: The Widest register is: 128 bits. LV: Found an estimated cost of 0 for VF 1 For instruction: %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ] LV: Found an estimated cost of 0 for VF 1 For instruction: %state = getelementptr inbounds %struct.quantum_reg_node_struct* %2, i64 %indvars.iv, i32 1, !dbg !58 LV: Found an estimate...
2005 Feb 15
1
shrinkage estimates in lme
Hello. Slope estimates in lme are shrinkage estimates which pull the OLS slope estimates towards the population estimates, the degree of which depends on the group sample size and the distance between the group-based estimate and the overall population estimate. Although these shrinkage estimates as said to be more pre...
2006 Apr 07
4
saving estimates from a for loop for later use
Thanks to the help of many on this list, I am now an R user and have been able to write some functioning code to do matching estimation. I have two for loops (i in 1:3, and j in 0:2). Within the loops, I had been creating matrices of relevant estimation coefficents in order to make lots of LaTeX tables. Well, now I want to be able to combine the results of many different estimations from within
2011 Jun 30
2
Saving fExtremes estimates and k-block return level with confidence intervals.
...t(z, z$n) res2 <-lapply(z, function(x){ ?????????????? m <- as.numeric(x$y) ?????????????? gevFit(m, block = 1, type = c("pwm")) ??????????????? }) > res2 $`1` Title: ?GEV Parameter Estimation Call: ?gevFit(x = m, block = 1, type = c("pwm")) Estimation Type: ? gev pwm Estimated Parameters: ?????? xi??????? mu????? beta 0.1033614 2.5389580 0.9092611 Description ? Wed Jun 29 23:07:48 2011 $`2` Title: ?GEV Parameter Estimation Call: ?gevFit(x = m, block = 1, type = c("pwm")) Estimation Type: ? gev pwm Estimated Parameters: ?????? xi??????? mu????? beta 0.34...
2006 Jun 07
4
Density Estimation
Dear R-list, I have made a simple kernel density estimation by x <- c(2,1,3,2,3,0,4,5,10,11,12,11,10) kde <- density(x,n=100) Now I would like to know the estimated probability that a new observation falls into the interval 0<x<3. How can I integrate over the corresponding interval? In several R-packages for kernel density estimation I did not found a corresponding function. I could apply Simpson's Rule for integrating, but perhaps somebody knows a...
2006 May 08
1
Panel Data Estimators (within, between, Random Effects estimator)
Dear R Users, Here is another probelm/question. I would like to run some panel regressions with R. Therefore I have combined several time periods of data for different individuals in my database. I have already run pooled OLS but I would need to calculate a Fixed Effects Estimator (within estimator). Unfortunately I couldn't find anything like that in the RSearch and I suppose that lme
2018 Aug 14
2
[PATCH] v2v: Add --print-estimate option to print source size estimate.
This option prints the estimated size of the data that will be copied from the source disk. For interest, the test prints: 3747840 ../test-data/phony-guests/windows.img Estimate: 3710976 --- v2v/Makefile.am | 2 ++ v2v/cmdline.ml | 17 ++++++++++-- v2v/cmdline.mli | 2 ++ v2v/tes...
2008 Jan 27
1
OR estimate
Hello, I have a loop with 1000 repetitions which includes OR computation of an exposure factor and outcome. I compute OR like this: t<-table(exposure,outcome) oddsratio(t)$measure["estimate"] This gives me the estimates for exposure=0 and exposure=1 but exposure=0 is the reference group and i need only the estimate for exposure=1. I specified a matrix OR with 3 columns (for OR estimate and lower and upper confidence limits) and 1000 rows OR[k,]<-oddsratio(t)$measure["e...
2005 May 19
3
Simultaneous estimation of mean and garch eq'n
Is it possible to simultaneously estimate mean and GARCH parameters in R? In other words, I would like to estimate the normal regression equation Y = b X + u and simultaneously do a garch process on the u's to correct the standard errors. I was thinking maybe something with systemfit(), but I can't quite come up with it. Tha...
2011 Feb 28
1
Robust variance estimation with rq (failure of the bootstrap?)
I am fitting quantile regression models using data collected from a sample of 124 patients. When modeling cross-sectional associations, I have noticed that nonparametric bootstrap estimates of the variances of parameter estimates are much greater in magnitude than the empirical Huber estimates derived using summary.rq's "nid" option. The outcome variable is severely skewed, and I am afraid that this may be affecting the consistency of the bootstrap variance estimates....
2016 Oct 06
2
LoopVectorizer -- generating bad and unhandled shufflevector sequence
...uniform instruction: %len.0288 = phi i32 [ %dec, %while.body320 ], [ %conv316, %while.body320.preheader ] LV: Found uniform instruction: %dec = add nsw i32 %len.0288, -1 LV: Found trip count: 0 LV: The Smallest and Widest types: 64 / 64 bits. LV: The Widest register is: 128 bits. LV: Found an estimated cost of 0 for VF 1 For instruction: %dl.0291 = phi i64* [ %incdec.ptr335, %while.body320 ], [ %73, %while.body320.preheader ] LV: Found an estimated cost of 0 for VF 1 For instruction: %ll.0290 = phi i64* [ %incdec.ptr332, %while.body320 ], [ %74, %while.body320.preheader ] LV: Found an es...
2011 Nov 15
1
Estimating model parameters for system of equations
Hi all, I'm trying to estimate model parameters in R for a pretty simple system of equations, but I'm having trouble. Here is the system of equations (all derivatives): eqAlgae <- (u_Amax * C_A) * (1 - (Q_Amin / Q_A)) eqQuota <- (p_max * R_V) / (K_p + R_V) - ((Q_A-Q_Amin)*u_Amax) eqResource <- -C_A * (p_max * R_V)...
2005 Apr 20
2
heckit / tobit estimation
Dear All, we (Ott Toomet and I) would like to add functions for maximum likelihood (ML) estimations of generalized tobit models of type 2 and type 5 (*see below) in my R package for microeconomic analysis "micEcon". So far we have called these functions "tobit2( )" and "tobit5( )". Are these classifications well known? How are these functions called in other
2009 Nov 03
1
Maximum Likelihood Estimation
Hi, I would like estimate a model for function of production's Coob-Douglas using maximum likelihood. The model is log(Y)= beta[1]+beta[2]*log(L)+beta[3]*log(K). I tried estimate this model using the tools nlm ( ) and optim ( ) using the log-likelihood function below: > mloglik <- function (beta, Y, L, K) { +...
2018 Aug 14
0
Re: [PATCH] v2v: Add --print-estimate option to print source size estimate.
On Tue, Aug 14, 2018 at 8:29 PM Richard W.M. Jones <rjones@redhat.com> wrote: > This option prints the estimated size of the data that will be copied > from the source disk. > > For interest, the test prints: > > 3747840 ../test-data/phony-guests/windows.img > Estimate: 3710976 > Why not use qemu-img measure on the overlay? It gives a conservative estimate that will never fail, based o...
2005 Nov 17
1
Standard Error
...ge----- > From: r-help-bounces at stat.math.ethz.ch [SMTP:r-help-bounces at stat.math.ethz.ch] On Behalf Of Mark Miller > Sent: Thursday, November 17, 2005 10:16 AM > To: r-help at stat.math.ethz.ch > Subject: [R] Standard Error > > I have worked out that when I fit data I get an estimate and a standard error, > but all the definitions I can find describe the standard error of a sample as > the standard deviation over the square root of the sample size, so if I am > fitting to a log-normal distribution, what is the standard error associated > with the standard deviat...
2018 Aug 16
0
[PATCH v2] v2v: Add --print-estimate option to print copy size estimate.
This option prints the estimated size of the data that will be copied from the source disk. Currently this overestimates by the size of the qcow2 header, but for real disk images that doesn't matter much. For example: $ virt-builder fedora-27 $ virt-v2v -i disk fedora-27.img -o null --machine-readable --print-estimate [......
2003 Oct 01
1
hypergeometric & population estimates
"help" We want to estimate the number of caribou in Jasper. We recently conducted an aerial survey and saw 70 uncollared caribou and 8 of 11 collared caribou. We want to estimate the number of caribou in this population with 95% confidence limits. Gary White uses the hypergeometric distribution and determines the populati...
2004 Oct 05
2
Nelson-Aalen estimator in R
.... Recently I need to do the Nelson-Aalen estimtor in R. I searched through the R help manual and internet, but could not find such a R function. I tried another way by calculating the Kaplan-Meier estimator and take -log(S). However, the function only provides the summary of KM estimator but no estimated values. Could you please help me with this? I would highly appreciate your great help! Thanks, Tongtong ---------------------------------------------------------- IMPORTANT WARNING: This email (and any attachments) is only intended for the use of the person or entity to which it is addressed,...