Displaying 20 results from an estimated 100 matches similar to: "msProcess, creating msSet file(s)"
2018 May 31
2
How to alpha entire plot?
I have two chromatograms I want plotted on the same axes.
I would like the plots to be transparent, so the first chart is
not obscured.
I have tried adjustcolor(..., alpha.f=0.3), the problem is that
my chromatogram is so dense with datapoints that they
overlap and the entire graph just ends up a solid color. The
second histogram still obscures the first.
Consider this example:
col1 <-
2007 Feb 20
1
baseline fitters
I am pretty pleased with baselines I fit to chromatograms using the
runquantile() function in caTools(v1.6) when its probs parameter is
set to 0.2 and its k parameter to ~1/20th of n (e.g., k ~ 225 for n ~
4500, where n is time series length). This ignores occasional low-
side outliers, and, after baseline subtraction, I can re-adjust any
negative values to zero.
But runquantile's
2008 Oct 30
1
Formula for Xi
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I want to compare different samples with the formula … <o:p></o:p>
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Here some example data: <o:p></o:p>
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2010 Dec 14
3
peak detection
Hi,
I was wondering if anyone knows of a package that contains the ability
for peak/valley detection. Here is an example of what I'm looking for,
only problem is that it's written in Matlab.
http://www.billauer.co.il/peakdet.html
Thanks for any help in advance.
-Joe
2018 Jun 01
0
How to alpha entire plot?
Interesting problem.
I would discretize the x-values and interleave them. Lines from one dataset still overlap, so you see high- density and low-density regions, but lines from the other dataset are drawn into the interval. Like so:
interleave <- function(x, MIN, MAX, N, nChannel = 2, channel) {
isp <- seq(MIN, MAX, length.out = N + 1) # interleave support points
offset <-
2011 Jan 08
4
Help How to create DSL for conditional validations
Hi All,
I am new to Ruby and ROR
I were trying to create small DSL for conditional validations
valid_with_cond :bypass_validation do
if self.addresses > 3
errors[:base] << "Can not have more than 3 addresses".
end
end
By this I wanted to create array of method and call them all in custom
validation method.
this above code I wanted to do
attr_accessor
2009 Apr 09
1
[Bridge] Out of memory problem
Hi, I'm using linux 2.6.21.5 and our kernel is freeze.
The problem is, if I create a Software bridge using $brctl command. and
add two interfaces say, eth0.0 and eth0.1 using
$brctl addbr br-lan
$brctl addif br-lan eth0.0
$brctl addif br-lan eth0.1
and when i send traffic from a host connected to one port to host
connected at other end, soon all the memory is dried up and and kernel
2009 Feb 17
2
Chromatogram deconvolution and peak matching
Hi,
I'm trying to match peaks between chromatographic runs.
I'm able to match peaks when they are chromatographed with the same method,
but not when there are different methods are used and spectra comes in to
play.
While searching I found the ALS package which should be usefull for my
application, but I couldn't figure it out.
I made some dummy chroms with R, which mimic my actual
2008 Aug 23
3
Postfix and Dovecot SASL authentication error
ear All,
I configured Postfix 2.3.3-2 on CentOS 5.2 using SASL Dovecot
authentication put I am facing the problem to receive mails . My postconf -n
result is:
[root at mails ~]# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
2011 Aug 18
4
splitting sample names
I have a data frame like this
xx<-data.frame(cbind(Sample=c('Ctrl_6h','1+0_6h','1+200_6h','1+5k_6h','Ctrl_5K_6h','ConA_6h'),
IFIT1=c(24,25,24.7,24.5,24.2,24.8)))
grep('[[:digit:]]h',xx$Sample)
yy<-xx$Sample
strsplit(yy,"_")
I have to extract the time information separated by '_' in the sample
2003 Feb 27
2
epoch time conversion in R
I have a data file where each entry is indexed by the time in seconds since
epoch (e.g. 1046315697). Is there an easy way to convert this time value into
a more friendly time (such as Month-Year) when plotting it?
I searched through the manual, mailing lists, and functions like as.POSIXct
and strptime, but didn't find what I need.
Thanks,
Sharad.
2011 Oct 10
4
correlation matrix
Hello Gurus
I have two correlation matrices 'xa' and 'xb'
set.seed(100)
d=cbind(x=rnorm(20)+1,
x1=rnorm(20)+1,
x2=rnorm(20)+1)
d1=cbind(x=rnorm(20)+2,
x1=rnorm(20)+2,
x2=rnorm(20)+2)
xa=cor(d,use='complete')
xb=cor(d1,use='complete')
I want to combine these two to get a third matrix which should have half
values from 'xa' and half
2011 Oct 27
2
help with paste
Hello gurus,
I have some variables, and i am creating combinations for analysis in the
end i need these variables to be displayed like "LEPTIN+SAA+PTH". currently
i am using loop to perform this. I would appreciate any pointers to do it
without the loop.
> mols=c("LEPTIN","SAA","PTH","sEGFR")
> samples=mols[1:3]
> samples
[1]
2010 Sep 16
1
virConnectOpen question.
Hi,
I am using virConnectOpen(const char *uri) to connect to the local
hypervisor. When uri is set to "lxc:///", an error gets logged
in /var/log/messages about failed connection. But I do not see any error
for "xen:///". The machine does not have these drivers installed, and I am
using libvirt 0.6.3. My questions are -
1. Why I see error in /var/log/messages for container
2011 Aug 11
2
virInitialize dumps core intermittently.
Hi,
I have a host with 6 VMs set to autostart. When this host reboots, it
starts libvirtd, pegasus cimom and libvirt-cim. It also restarts the VMs.
Intermittently we noticed a core during start up that points to the last
call made by libvirt-cim to "virInitialize". I am thinking that it is a
timing issue where virInitialize is called while libvirt is trying to
autostart the VMs.
2013 Mar 18
2
OrgMassSpecR peak area issue
Hello!
I am having an issue with the OrgMassSpecR package. I run my HPLC using a
DAD detector. My raw data is exported form chemstation as a csv file. I
then upload the csv into Rstudio no problem. Using the DrawChromatogram
function, I get a nice chromatogram, and my retention time, peak area, and
apex intensity values are given as well.
The problem comes with the peak area value given. The
2010 Aug 25
1
Documenting S4 Methods
I'm in the process of converting some S3 methods to S4 methods.
I have this function :
setGeneric("enrichmentCalc", function(rs, organism, seqLen, ...){standardGeneric("enrichmentCalc")})
setMethod("enrichmentCalc", c("GenomeDataList", "BSgenome"), function(rs, organism, seqLen, ...) {
... ... ...
})
2011 Feb 18
1
Find peaks in dataset(x,y) and area for each peak
http://r.789695.n4.nabble.com/file/n3312061/x_and_y_values.txt
x_and_y_values.txt
I have the absorbance values form HPLC Chromatogram. I need to find the
peaks in datapoints and area under each peak.
I am not sure how how to find the peaks, I tried couple of libraries and
peak function but they return me a list of values which when computed from
area turns out to be huge nnumbers. In the
2010 Dec 28
3
Error in combined for() and if() code
Hello,
I am trying to filter a data set like below so that the peaks in the Phase
value are more obvious and can be identified by a peak finding function
following the useful advise of Carl Witthoft. I have written the following
for(i in length(data$Phase)){
newphase=if(abs(data$Phase[i+1]-data$Phase[i])>6){
data$Phase[i+1]
}else{data$Phase[i]
}
}
I get the following error which I have not
2010 Aug 27
1
Unable to autostart storage pool.
Following xml file was used to create storage pool using 'virsh pool-create
<xml>'
<pool type='dir'>
<name>my-diskpool</name>
<uuid>2fbc894e-7619-6cda-a33c-b27fae5fbe8b</uuid>
<capacity>136024670208</capacity>
<allocation>11416657920</allocation>
<available>124608012288</available>
<source>