Displaying 20 results from an estimated 8000 matches similar to: "Data generation for a distribution"
2012 May 21
1
variate generation
Hi,
I plot no: of bytes against time and find the distribution
curve using R. These bytes are sent from the client to the server.
Is there a way to generate bytes randomly using R according to a
distribution ? I would like to send these bytes to the server. Hope I am
not misguided here. My goal is to simulate a certain distribution of
bytes.
Thanks,
Mohan
DISCLAIMER:\
2012 Aug 14
1
Graphing question(basic)
Hi,
plot(xc, yc, type="l", ylim=c(0,50), xlim=c(0,50), lwd=2, xlab="M",
ylab="seconds")
abline(a=-think, b=cpustime, lty="dashed", col="red")
abline( 2.2, 0, lty="dashed", col = "red")
This draws a response time curve an asymptote and a horizontal line. How
do I draw a line from the intersection of the asymptote and
2012 Jun 22
1
Variance with confidence interval
Hi,
Is there a way to calculate variance directly by specifying
confidence interval using R ? I am specifically asking because I wanted
to investigate how this could be useful for project schedule variance
calculation.
Moreover I am interested in using R for monte carlo simulation as well
and any simple examples would help. I read that project schedules would
benefit from this.
2017 Aug 11
1
EOF within quoted string
Yes. I tried that already. Not straightforward.
data <- read.csv("20_newsgroups.csv",fill=TRUE,as.is=T,header=F, quote="", sep=",", encoding="UTF-8")
This line does read it haphazardly. The emails in the column are split into multiple columns and there are several columns with just ?NA?. Totally 202 columns.
And then I removed columns with NA?s and
2017 Aug 10
0
EOF within quoted string
You might want to try some of the suggestions mentioned in this post:
https://stackoverflow.com/q/17414776/2140956
Jean
On Thu, Aug 10, 2017 at 7:59 AM, <Mohan.Radhakrishnan at cognizant.com> wrote:
> Hi,
>
> Reading http://ssc.wisc.edu/~ahanna/20_newsgroups.csv after downloading
> it using
>
> data <- read.csv("20_newsgroups.csv",header=TRUE)
>
>
2013 Aug 27
6
Scale of axis for two data sets
Hi,
Kbytes RSS rNo
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1450876 1433788
2689632 1460168 1443084
plot(data$rNo,data$RSS,pch=0,type="b",col=36,axes=FALSE, ylab="",
xlab="",las=2,lwd=2.5)
title(" PID -
2012 Jun 27
1
Simulating web requests
Hi,
I am looking for some assistance with these requirements. We
are trying to simulate web requests to hit a web applications. Let's
assume I have a url to hit that requires a username and password.
1. These web requests should have exponential inter arrival times.
2. Generate self-similar traffic. I am not very sure about the
properties of this traffic. Is Variance Time plot
2013 Nov 01
2
Replace element with pattern
Hi,
I have a data frame with one column and several rows of the form.
"Peak Usage : init:2359296, used:15859328, committed:15892480,
max:50331648Current Usage : init:2359296, used:15857920,
committed:15892480, max:50331648|-------------------|"
I tested the regex
Current.*?[\|]
in an online tester which greedily matches upto the first 'pipe' character
Current
2017 Aug 10
2
EOF within quoted string
Hi,
Reading http://ssc.wisc.edu/~ahanna/20_newsgroups.csv after downloading it using
data <- read.csv("20_newsgroups.csv",header=TRUE)
throws this.
Warning message:
In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, :
EOF within quoted string
So, for example, the first line in the file is this. This column contains only such text. Is there a way read it ?
2013 Nov 20
2
Functional Programming patterns
Hi,
'
Not specific to 'R'. I search for patterns and found
http://patternsinfp.wordpress.com/ which is too heavy for me. There is a
'Pragmatic Programmer' book on such patterns for Scala and Clojure. Is
there anything for R ?
I wanted to code this. Is there a functional pattern in R for multiple
'if' loops like this ?
if(
2013 Sep 20
1
Averate memory usage trend
Hi,
I would like to understand how to draw a graph to find out the
average memory used by a single httpd process given these details
collected over a period of
several days. I code R but this is about a method to find an average
memory utilization. I believe I have enough data.
How should I statistically calculate this ?
The figures inside braces are the total httpd processes at
2012 Apr 12
1
Developing a module: Use it from the current directory?
In general, the loading/import/namespacing mechanism is really something
that I cannot wrap my head around, even after reading the relevant sections
in the documentation.
Specifically, I''m trying to put together a module. I believe I have the
correct module structure:
$ find
.
./test.pp
./graphite
./graphite/manifests
./graphite/manifests/init.pp
./graphite/files
2009 Dec 26
3
[LLVMdev] "Graphite" for llvm
Hi ether,
On 12/26/09 13:06, ether zhhb wrote:
> hi,
>
> dose anyone going/planning to add something like
> Graphite(http://gcc.gnu.org/wiki/Graphite) in gcc to llvm(or that
> should be implement at the level of clang?)?
I already looked into implementing something like Graphite for LLVM.
However just recently, so I have not released any code yet. As soon as
some code is
2012 Jun 07
2
Basic question about confidence intervals
Hi,
I am again asking a generic question and the general response for such questions is cold. I am a beginner but use and write simple R scripts.
I am looking for some ideas to calculate the confidence intervals based on this excerpt from the paper. Moreover it would help if someone points to material to read about degrees of freedom and any related concepts.
Thanks,
2013 Sep 27
2
Locating inefficient code
Hi,
I have been using R for a few months and I have this working
code. Don't seen any problem but this takes a long time. So if I have
about 30000 rows it takes a few minutes. If I have 100000 it does not seem
to complete.
Original Data:
Proto Recv-Q Send-Q Local-Address Foreign-Address State
tcp 0 0 172.20.100.2:60255
2009 Dec 28
0
[LLVMdev] "Graphite" for llvm
On Mon, Dec 28, 2009 at 05:05, Albert Cohen <Albert.Cohen at inria.fr> wrote:
> PCP is only partially implemented: conversion out of PCP to Graphite is not
> implemented,
Actually Gimple to PCP to Graphite is implemented in some extent,
but there still are plenty of bugs and we should work on the out of
Graphite to PCP to Gimple/LLVM if we want to get rid of all these bugs.
Also the
2010 Dec 22
2
Fitting a Triangular Distribution to Bivariate Data
Hello,
I have some xy data which clearly shows a non-monotonic, peaked
triangular trend. You can get an idea of what it looks like with:
x<-1:20
y<-c(2*x[1:10]+1,-2*x[11:20]+42)
I've tried fitting a quadratic, but it just doesn't the data-structure
with the break point adequately. Is there anyway to fit a triangular
or 'tent' function to my data in R?
Some sample code
2009 Dec 29
0
[LLVMdev] "Graphite" for llvm
Tobias Grosser wrote:
> The way to go is the scoplib format (propably extended by quantified
> variables). This format could be extracted from graphite easily and
> could also be created in LLVM.
> What we need to get back into LLVM is only the new optimized schedule
> described e.g. as cloog like scattering functions. These can be parsed
> easily. The real code generation
2017 Jun 07
1
Operating on RC in a list
Hi,
I have a hierarchy of such classes. Subject has a list of measurements. Let assume I have a list of such 'Subject' RC's.
Can I use dplyr to navigate from Subject to the list of measurement RC's and filter and group data ? dplyr should
be able to call the methods on these RC's to operate on the data structure ?
I tried to coerce the list of RC's into a data frame
2015 Jan 28
0
CentOSn7 & graphite-web RPM
On Tue, Jan 27, 2015 at 10:23 PM, Markus "Shorty" Uckelmann
<shorty at koeln.de> wrote:
> Am 28.01.2015 um 07:07 schrieb Philip Keogh:
>> You can also likely use this Fedora tree:
>> http://pkgs.fedoraproject.org/cgit/graphite-web.git/tree/
>
> That's the one I already found. But I wasn't sure in which state this
> was. So you mean this is