Displaying 20 results from an estimated 300 matches similar to: "New package: CHNOSZ"
2011 Nov 17
1
tuning random forest. An unexpected result
Dear Researches,
I am using RF (in regression way) for analize several metrics extract from
image. I am tuning RF setting a loop using different range of mtry, tree
and nodesize using the lower value of MSE-OOB
mtry from 1 to 5
nodesize from1 to 10
tree from 1 to 500
using this paper as refery
Palmer, D. S., O'Boyle, N. M., Glen, R. C., & Mitchell, J. B. O. (2007).
Random Forest Models
2011 Nov 16
0
problem to tunning RandomForest, an unexpected result
Dear Researches,
I am using RF (in regression way) for analize several metrics extract from
image. I am tuning RF setting a loop using different range of mtry, tree
and nodesize using the lower value of MSE-OOB
mtry from 1 to 5
nodesize from1 to 10
tree from 1 to 500
using this paper as refery
Palmer, D. S., O'Boyle, N. M., Glen, R. C., & Mitchell, J. B. O. (2007).
Random Forest Models
2018 May 03
0
Package for Molecular Properties
library(sos)
(mp <- findFn('{molecular properties}'))
????? ** found 7 matches in 4 packages and opened two web pages in my
default browser with (a) the 7 matches and (b) the 4 packages. The first
function was something for amino acids, like you suggested.? Two others
returned compound and substance information from PubChem.
????? Does this help?
????? Spencer
On
2018 May 03
1
Package for Molecular Properties
... In addition, you may wish to also post on the Bioconductor list
for this sort of thing.
-- Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Thu, May 3, 2018 at 12:58 AM, Spencer Graves
<spencer.graves at effectivedefense.org>
2012 Jul 23
3
How to do the same thing for all levels of a column?
Dear all,
I am a R beginner, and I am looking for a way to do the same thing for all
levels of a column in a table.
Basically, I have a bunch of protein sequences composed of different amino
acid residues, and each residue is represented by an uppercase letter. I
want to calculate the ratio of different amino acid residues at each
position of the proteins. Here is an example table:
Proteins
2018 May 03
3
Package for Molecular Properties
All
Is there a package or library that will, given a nucleotide sequence
1. calculate the extinction coefficient at 260 nm for (Beer-Lambert's law)
2. calculate molecular weight
3. return it's complementary sequence
I was able to find several packages that can do similar calculations for an amino acid sequence for proteins but none for nucleic acids.
Any pointers, etc. would be
2006 Mar 26
1
Newbie clustering/classification question
My laboratory is measuring the abundance of various proteins in the
blood from either healthy individuals or from individuals with various
diseases. I would like to determine which proteins, if any, have
significantly different abundances between the healthy and diseased
individuals. Currently, one of my colleagues is performing an ANOVA on
each protein with MS Excel. I would like to analyze
2009 Jul 10
2
predict.glm -> which class does it predict?
Hi,
I have a question about logistic regression in R.
Suppose I have a small list of proteins P1, P2, P3 that predict a
two-class target T, say cancer/noncancer. Lets further say I know that I
can build a simple logistic regression model in R
model <- glm(T ~ ., data=d.f(Y), family=binomial) (Y is the dataset of
the Proteins).
This works fine. T is a factored vector with levels cancer,
2009 Sep 16
1
expression
/Dear all,///
/I am very thankful, if you could tell what is the right way to write:
mtext(paste(expression("R"^2),round(marco2[1,i],digits=3)," N? of proteins:",marco3[i]),side=4,cex=.6)
in this case the output is:
"R"^2
I tried also in this way:
mtext(paste(expression(paste("R"^2)),round(marco2[1,i],digits=3)," N? of
2012 Mar 02
2
Statistical Histograms in R
Hi,
I'm wondering if anybody could possibly help me?
I have a table with 5 tab-delimited columns. Each column has 'e-value'
scores for 5 different proteins.
I'd like to plot a distribution curve using hist() for the 5 different
proteins and show the 5 distribution curves on the same graph in different
colours.
In the case, E-values will be the X-axis and frequency will be the
2014 Jan 13
3
apache - upload files bigger than 2Go
Hi,
I need to upload files larger than 4.4Gb (iso DVD) on CentOS (5.5 x64)
http server (httpd-2.2.3-43.el5.centos)
On the apache server set in my /etc/php.ini
upload_max_filesize = 4900M
post_max_size = 5000M
In my httpd.conf I set :
LimitRequestBody 0
I'm using firefox and/or chrome client for upload a file with 4.2gb size
on the server.
But it doesn't work.
2006 Jun 18
2
analyze amino acid sequence (composition)of proteins
Dear R-helpers:
thank your for your attention.
i am a newer to R and i am doing some protein category classification based on
the amino acid sequence.while i have some questions urgently.
1. any packages for analysis amino acid sequence
2. given two sequences "AAA" and "BBB",how can i combine them into "AAABBB"
3. based on "AAABBB",how can i get some
2024 Apr 16
1
read.csv
?s 11:46 de 16/04/2024, jing hua zhao escreveu:
> Dear R-developers,
>
> I came to a somewhat unexpected behaviour of read.csv() which is trivial but worthwhile to note -- my data involves a protein named "1433E" but to save space I drop the quote so it becomes,
>
> Gene,SNP,prot,log10p
> YWHAE,13:62129097_C_T,1433E,7.35
> YWHAE,4:72617557_T_TA,1433E,7.73
>
2009 Aug 21
1
LASSO: glmpath and cv.glmpath
Hi,
perhaps you can help me to find out, how to find the best Lambda in a
LASSO-model.
I have a feature selection problem with 150 proteins potentially
predicting Cancer or Noncancer. With a lasso model
fit.glm <- glmpath(x=as.matrix(X), y=target, family="binomial")
(target is 0, 1 <- Cancer non cancer, X the proteins, numerical in
expression), I get following path (PICTURE
2013 Jan 09
0
Cloud freeware suggestion
Hi,
Is someone has some experience with a nice freeware tool like "DropBox"
that I can use on CentOS apache server. I see owncloud, it's a nice tool
that I can use with my AD server.
Some experience with other freeware tool ?
Regards.
__________________________
Avant d'imprimer, pensez ? l'environnement ! Please consider the environment before printing !
Ce message et
2024 Apr 16
1
read.csv
Gene names being misinterpreted by spreadsheet software (read.csv is
no different) is a classic issue in bioinformatics. It seems like
every practitioner ends up encountering this issue in due time. E.g.
https://pubmed.ncbi.nlm.nih.gov/15214961/
https://genomebiology.biomedcentral.com/articles/10.1186/s13059-016-1044-7
https://www.nature.com/articles/d41586-021-02211-4
2017 Sep 19
1
KVM SSL with wget
Hi,
I installed KVM on a CentOS 7.4 host. The guest is also installed in CentOS 7.4, the network works perfectly.
Both Host and Guest machines have the same OS.
I do not understand why I have an SSL error on the guest and not on the host while the two computers have the same OS installation.
The firewalld, selinux, fail2ban services are not installed on host and guest.
Is there an extra
2024 Apr 16
5
read.csv
Dear R-developers,
I came to a somewhat unexpected behaviour of read.csv() which is trivial but worthwhile to note -- my data involves a protein named "1433E" but to save space I drop the quote so it becomes,
Gene,SNP,prot,log10p
YWHAE,13:62129097_C_T,1433E,7.35
YWHAE,4:72617557_T_TA,1433E,7.73
Both read.cv() and readr::read_csv() consider prot(ein) name as (possibly confused by
2011 Jun 27
1
No USB 3.0 and audio sound with CentOS 5.6
Hi,
I installed CentOS 5.6 on a Dell Precision Laptop M4600.
This laptop has 2 USB 3 connectors. Nothing work (mouse or usb key...)
when I connected something on this 2 ports.
And sound not working on this laptop.
[root at localhost ~]# lspci
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev
09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root
2011 May 08
2
Error in AnnotationDbi package - makeProbePackage
Dear all,
We have developed our own Affymetrix chip (Custom Express Array, PM-only
with two species).
I want to analyse the data with the limma package, but for that I need to
built my own CDF package,
probe package and built the filters to analyse one specie or another.
I'm using the makeProbePackage available in the AnnotationDbi (for a
R-2.13.0) but I got the following error message: