Displaying 20 results from an estimated 100 matches similar to: "Random Forest Imputations"
2010 Sep 15
2
Using feather.plot to try and generate a stick plot of current velocity data (and having issues)
Hello All,
I am attempting to use the feather.plot function from the plotrix
package to graph current velocity data as I have speed and direction. I
let "r" be the first 10 rows of current speed data and "theta" be the
first 10 rows of directional data in radians. I had tried this with 10
measurements, but keep getting the following error message:
>
2008 Jul 28
0
Help with yaImpute
Dear fellow R-users
I am trying to do some imputation using K-NN with the yaImpute library. All seems to be going well until I try to use
AsciiGridImpute. All my data are correctly formatted and I am able to run and view the results of yai. Below is my code:
****************************************************************************************************
library("yaImpute")
data
2005 Oct 28
2
line vector plots
Hi,
I'm looking for the way to make vector plot over a time line. This plot,
similar to the "feather plot" in Matlab, is a line in which every thick
(a time value) one vector is drawn with its length proportional to one
variable (wind speed, for example) and its direction to another (wind
direction, for example). Any ideas?
Thanks, EKS
--
----------------------------
Eduardo
2009 May 05
0
illegal levels in yaImpute() / AsciiGridImpute()
I'm using randomForest in yaImpute to create a yai-type object which
associates "L" with landscape features. Then I use the sp() package to
impute L to a landscape consisting of four ascii files) I keep getting the
message "NA's generated due to illegal level(s)" when I do the imputation.
It's probably because one of the landscape features ("as", for
2009 Jan 29
1
In Rd: \describe \itemize and \item
I rebuilt a test version of my yaImpute package using Uwe Ligges' windows
build service.
I got this reply: Check result: OK
R version 2.9.0 Under development (unstable) (2009-01-27 r47756)
Here is the issue: I have the following construct in help files (this
example relates to "data"):
\format{
A data frame with 847 rows and 29 columns: \cr\cr
Ground based measurements of
2008 Jan 14
2
knnFinder package
Dear all,
I have found some serious bugs in the knnFinder package (which supports
data structures and algorithms for both exact and approximate nearest
neighbor searching in arbitrarily high dimensions) that may trigger
segmentation faults.
I have fixed them but I had troubles to contact its maintainer Samuel E.
Kemp (previously with the University of Glamorgan, UK). Do someone know
where I
2006 Feb 23
1
Duplicating an install
I just completed YAI. The install was done via HTTP from an HTTP
server (duh!).
Is there some file I could copy into the directory structure
(anaconda-ks.cfg) so that once I point the install to that server, it
will do the second install just like the first?
2011 Jun 09
1
k-nn hierarchical clustering
Hi there,
is there any R-function for k-nearest neighbour agglomerative hierarchical
clustering?
By this I mean standard agglomerative hierarchical clustering as in hclust
or agnes, but with the k-nearest neighbour distance between clusters used
on the higher levels where there are at least k>1 distances between two
clusters (single linkage is 1-nearest neighbour clustering)?
Best regards,
2003 Dec 03
1
R and Memory
I would suggest that you make a more thorough search of the R-Archives.
(http://finzi.psych.upenn.edu/search.html) If you do you will find this
discussion has been had several times and that the type of machine you
are running will have an impact upon what you can do. My feeling is that
you are going have to knuckle down with the documentation and understand
how R works and then when you have
2008 Nov 26
0
SVM
Hi All,
I fitted several classifiers in a two class problem. I then used the package 'yaImpute' - to apply my predictive models to asciigrids and thereby generate a
probability maps. So far I successfully used yaImpute to generate maps for
Random Forests, Classification trees, Generalized Linear Models (GLMs) and
Generalized Additive Models (GAMs). But when I try to use it to two other
2007 Mar 29
0
Impute Values for Forest Inventory
Dear All,
I am Ricky Jacob, a project Student from India who is working on
Forest Inventories.
Input data:
Plot(area = .1 ha) data having the following information:
1) Basal Area
2)Tree Density
3)Volume
So I am applying this information to the corresponding pixels in the
satellite imagery of the study area. I also have given the same
values to a 3x3 window around that pixel.
Inventory is taken
2009 Feb 26
0
AsciiGridPredict returns error in unionDataJoin
Dear list,
I am using AsciiGridPredict from the yaImpute package to make a spatial prediction of a randomForest model. When I call AsciiGirdPredict I am getting an error message, that I do not understand:
AsciiGridPredict(st.rf.fit, xlist, ylist, xtypes=NULL, rows=NULL, myPredFunc=NULL)
Rows per dot: 8 Rows to do: 884
ToDo:
2008 Jan 10
1
write.dta (foreign package)
Hi,
I'd like to request that the 'write.dta' command also save the
"var.labels" attributes of the data frame.
'read.dta' can read them, but 'write.dta' doesn't write them back.
Thanks....
Edward McNeil
--
Epidemiology Unit
Faculty of Medicine
Prince of Songkla University
Hat Yai
THAILAND
(\_ _/)
(='.'=)
('')_('')
--
This
2018 May 11
0
Bug in plot.lm function (stats package): positioning of labels for extreme points.
Hi,
====================
Reproducible example:
====================
data(Animals, package="MASS") # interesting dataset
# Run model
lm1 <- lm(log10(body)~log10(brain), data=Animals)
# Setup 2x2 graphics device
par(mfrow=c(2,2))
# Plot diagnostics, label the two most "extreme" points based on magnitude of residuals
plot(lm1, id.n=2)
==============================
2013 Nov 28
0
polychoric correlation with multiple imputations, a Strate and a Weight
Hi there,
I'm generally more a Stata user than a R user, but I need to computed
something, and I am not able to do it with Stata 13. So, here I am!
I have a database that has multiple imputations (imputations are already
done) with a complex sample design (Strate and Weight).
Is it possible, in R, to run polychoric correlation with multiple
imputation, a Strate and a Weight ?
For the
2002 Jul 08
1
Imputations in R
I'm interested in finding a package in R to do multiple imputations, similar
to MICE in S-Plus. Does one exist?
Please email directly to me.
Thanks.
Linda Andrews
Social & Scientific Systems
(301) 628-3234
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info",
2008 Dec 05
2
Error in R CMD INSTALL on Windows XP using Rtools28
Dear all
When trying to install my package on Windows XP on my Mac, I get the
following error:
---------- Making package xps ------------
...
...
xpsDict.cxx
"C:\Programme\Microsoft Visual Studio 9.0\VC\bin/link" /dll /def:xps.def
/out:xps.dll fp10.obj -opt:noref -nologo -include:_G__cpp_setupG__Hist
-include:_G__cpp_setupG__Graf1 -include:_G__cpp_setupG__G3D
2009 Apr 22
1
Multiple imputations : wicked dataset ? Wicked computers ? Am I cursed ? (or stupid ?)
Dear list,
I'd like to use multiple imputations to try and save a somewhat badly
mangled dataset (lousy data collection, worse than lousy monitoring, you
know that drill... especially when I am consulted for the first time
about one year *after* data collection).
My dataset has 231 observations of 53 variables, of which only a very
few has no missing data. Most variables have 5-10% of
2019 Mar 18
2
Missing data on PDB's generated by lld
No, we use msvc cl.exe as a compiler generating C7 debug information
(here is more or less our compiler options regarding
optimization/debugability):
/Z7 /GL- /bigobj /Zo /utf-8 /arch:AVX /std:c++14 /Zc:inline
/Zc:ternary /Zc:rvalueCast /Zc:strictStrings /O2 /MD
In this list the only weird one is /bigobj, my main fear is that we
might get to the limit of sections on an obj and then by adding the
2019 Mar 18
2
Missing data on PDB's generated by lld
Hi,
We are starting to test binaries generated by lld on windows and we
notices that sometimes the visual studio debugger can't see the
content of variables or gets the call stack wrong for deeply nested or
complex types. Did anyone else have the same problems, or any way to
try to figure out what is missing? I tried llvm-pdbutil dump -symbols
but there is a lot of small diferences on