Displaying 20 results from an estimated 1100 matches similar to: "Debian packaging and openblas related crash when profiling in R"
2007 Jun 07
1
MITOOLS: Error in eval(expr, envir, enclos) : invalid 'envir' argument
R-users & helpers:
I am using Amelia, mitools and cmprsk to fit cumulative incidence curves
to multiply imputed datasets. The error message that I get
"Error in eval(expr, envir, enclos) : invalid 'envir' argument"
occurs when I try to fit models to the 50 imputed datasets using the
"with.imputationList" function of mitools. The problem seems to occur
2012 Apr 25
2
Accessing a list
Hi,
I have the following problem- I want to access a list whose elements are
imp1, imp2, imp3 etc I tried theusing the paste comand in a for loop see
the last for loop below. But I keep calling it df but df = imp1 (for the
first run). Any ideas on how I can access the elements of the list?
Isaac
require(Amelia)
library(Amelia)
data.use <- read.csv("multiplecarol.CSV", header=T)
2011 Jul 22
0
Using package amelia
Hello
I do not think I have fully grasped how to use Amelia to deal with missing
data.
For instance, suppose I have a data.frame variable with 4 columns (year,
mon, ssn, dev) = (year, month, measurements, standard deviation of the
measurement). Of course, there are some random missing values on columns 3
and 4. The measurements are an almost periodic time-series contaminated by
noise.
2011 Jul 14
1
Amelia_Multiple_Imputation_with_observational_priors_noms
I am fairly new at using R/programming in general so I apologize if I am
leaving crucial parts of the puzzle out, but here goes.
First and foremost this is the error I am receiving:
Error in muPriors[priors[, 1:2]] <- priors[, 3] :
NAs are not allowed in subscripted assignments
This occurs only when I am using observational priors and some number of
nominal variables, it does not
2013 Feb 15
0
Ho w Do I Get Cox Model Convergence After Multiple Imputation
Due to missing data with some of my predictor variables I first do multiple
imputation as follows:
library(foreign)
library(Amelia)
library(norm)
set.seed(666)
M=10
impdat <-
2007 May 31
0
Using MIcombine for coxph fits
R-helpers:
I am using R 2.5 on Windows XP, packages all up to date. I have run
into an issue with the MIcombine function of the mitools package that I
hoped some of you might be able to help with. I will work through a
reproducible example to demonstrate the issue.
First, make a dataset from the pbc dataset in the survival package
---------------
# Make a dataset
library(survival)
d <-
2012 May 19
2
how to predict/forecast missing values in time series ?
i have time series as
1.3578511
0.5119648
1.3189847
0.9214787
1.2272616
4.9167998
1.2272616
1.2272616
0.8854192
2.3386331
1.6132899
0.2030302
0.8426226
1.2277843
NA
1.3189847
1.3578511
0.8530141
2.3386331
1.0541099
0.7747481
0.5764672
1.3189847
1.2160533
1.2272616
0.6715839
0.9651803
1.6132899
1.2006974
0.6875047
1.3245534
1.2006974
0.8221709
1.3101684
1.6132899
1.6132899
1.2006974
1.3189847
2012 Oct 30
1
Amelia imputation - column grouping
Hi everybody,
I am quite new to data imputation, but I would like to use the R package '
Amelia II: A Program for Missing Data '. However, its unclear to me how
the input for amelia should look like:
I have a data frame consisting of numerous coulmns, which represent
different experimental conditions, whereby each column has 3 replicates. I
want amelia to perform an imputation across
2010 Dec 22
3
Help with Amelia
Hi
I have used the amelia command from the Amelia R package. this gives me a number
of imputed datasets.
This may be a silly question, but i am not a statistician, but I am not sure how
to combine these results to obtain the imputed dataset to usse for further
statistical analysis. I have looked through the amelia and zelig manuals but
still can not find the answer. This maybe because I dont
2013 Jan 07
1
Amelia algorithm
Dear all.
First of all, my english isn't verry good, but I hope I can convey my concern.
I've a general question about the Amelia algorithm. I'm no mathematician or
statistician, but I had to use R and impute and analyse some data, and Amelia
showed results that fitted my expectations. I'll have to defend my choice soon,
but I haven't totally grasped what Amelia does. I'm
2012 Dec 12
3
R-2.15.2 changes in computation speed. Numerical precision?
Speaking of optimization and speeding up R calculations...
I mentioned last week I want to speed up calculation of generalized
inverses. On Debian Wheezy with R-2.15.2, I see a huge speedup using a
souped up generalized inverse algorithm published by
V. N. Katsikis, D. Pappas, Fast computing of theMoore-Penrose inverse
matrix, Electronic Journal of Linear Algebra,
17(2008), 637-650.
I was so
2010 Dec 10
3
Adding numbers in Outputs
two OutputsHello!
I am Amelia from Auckland and work for a bank. I am new to R and I have started my venture with R just a couple of weeks back and this is my first mail to R-forum. I need following assistance
Suppose my R code generates following outputs as
> X
[[1]]
[1] 40
[[2]]
[1] 80 160
[[3]]
[1] 160 80 400
> Y
[[1]]
[1] 10
[[2]]
[1] 10 30
[[3]]
[1] 5 18 20
2016 Apr 06
1
Memory problem
Dear Sir,
Thanks for the guidance. Will check. And yes, at the end of each simulation, a large result is getting stored.?
Regards
Amelia
On Wednesday, 6 April 2016 5:48 PM, jim holtman <jholtman at gmail.com> wrote:
It is hard to tell from the information that you have provided.? Do you have a list of the sizes of all the objects that you have in memory?? Are you releasing large
2018 Jan 10
0
Error installing ggplot2 package
Point of clarification:
Packages other than those that are part of the "standard" r distro
must first be "installed" from a package repository -- typically CRAN
-- via the install.packages()* function before they can be accessed
via the library() or require() function. Have you done this? See
?installed.packages if you are unsure.
Also, R must know what libraries to look in
2006 Nov 06
2
comparing 2 dataframes
Een ingesloten tekst met niet-gespecificeerde tekenset is
van het bericht gescrubt ...
Naam: niet beschikbaar
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20061106/756382a8/attachment.pl
2012 Jan 13
2
Averaging over data sets
Hi all,
after using Amelia II to create 10 imputed data sets I need to average them
to have one unique data that includes the average for each cell of the
variables imputed, in addition to the values for the variables not imputed.
Such data has many variables (some numeric, other factors), and more than
20000 observations. I do not know how to average them out. Any help?
Below I provide a small
2011 Sep 18
2
Add png image outside plot borders
I am trying to add a copyright disclaimer outside the plot borders of
some images I have created. I can use mtext() to add the written
portion, but I would like to have the Creative Commons license image
(http://en.wikipedia.org/wiki/File:Cc.logo.circle.svg) before the
text. I've found that I can plot a .png image inside the plot
boundaries using rasterImage() but I can't figure out how to
2016 Apr 06
0
Memory problem
It is hard to tell from the information that you have provided. Do you
have a list of the sizes of all the objects that you have in memory? Are
you releasing large objects at the end of each simulation run? Are you
using 'gc' to garbage collect any memory after deallocating objects?
Collect some additional information with a simple function like below:
f_mem_stats <-
2011 Jan 31
2
Rubin's rules of multiple imputation
Hello all, if I have multiple imputed data sets, is there a command or
function in R in any package you know of to combine those, I know one common
MI approach is rubins rules, is there a way to do this using his rules or
others? I know theres ways, like using Amelia from Gary King's website to
create the imputed data sets, but how to make them into one or combine them
for analysis.
2012 Jul 12
3
plot graph by first letter
Hi all, may i know is it possible to plot a graph by first letter?
for example:
Name: Age:
Angel 20
Amelia 20
Bernard 19
Stephanie 20
Vanessa 22
Angeline 23
Camel 21
If I want to plot the name started with letter 'A' and their Angel,