Hi,
You can do this either by:
with(data1,aggregate(y,by=list(x),function(x) x)) #2nd column is a list here
#or
res1-split(seq(nrow(data1)),data1$x)
#or
res1-tapply(data1$y,list(data1$x),function(x) x)
res2- t(sapply(res1,`[`,1:max(sapply(res1,length
I wrote, finding pieces of code in the web, a simple script to draw a 3D
gaussian plot.
For the next step, I need that the 2 gaussian distributions have different
colors.
Can someone help me to do this?
fn - function(x, y, scale, scale2)
dnorm(x,mean=1,sd=scale)*dnorm(y,mean=-1,sd=scale) +
Dear Arun,
Thanks a lot for the time and help.
Cheers,
Swagath
On 12/26/12 6:24 AM, arun wrote:
Hi,
You can do this either by:
with(data1,aggregate(y,by=list(x),function(x) x)) #2nd column is a list here
#or
res1-split(seq(nrow(data1)),data1$x)
#or
Dear R users,
I have a list of objects of type im
mylist$sp1
$sp2
$sp3
and I want to convert them to a list of objects of class SpatialGridDataFrame
This works for a single object of class im:
a - mylist$sp1
b - as(a, SpatialGridDataFrame)
Then I want to write each element in the new list as
Hello,
Try the following.
# 1.
idx - seq(50, 100, by = 10)
mat - matrix(difMH[idx]$DIFitems, ncol = length(idx))
# 2.
comp - c(1, 9, 21, 22, 25, 30, 34, 38)
hit - lapply(difMH[idx], function(x) length(intersect(x$DIFitems, comp)))
falarm - lapply(difMH[idx], function(x)
Hello,
Sorry, my previous post is wrong, to make of it a matrix use
do.call(cbind, lapply(idx, function(i) difMH[[i]]$DIFitems))
Hope this helps,
Rui Barradas
Em 26-12-2012 14:44, Rui Barradas escreveu:
Hello,
Try the following.
# 1.
idx - seq(50, 100, by = 10)
mat -
Browsing the web recently, I came across what I think is a new utility for
generating an interactive, web-based R graph of data from a database. The
generated graph can be manipulated by a user to choose different data,
limits, etc. I would like to investigate using this with data from our
On Dec 26, 2012, at 6:34 AM, David Osborne daosbo...@gmail.com wrote:
Browsing the web recently, I came across what I think is a new utility for
generating an interactive, web-based R graph of data from a database. The
generated graph can be manipulated by a user to choose different data,
Hi David,
I suggest you to have a look at packages that can extract data from
sql or nosql databases and graphics. CRAN task views would help:
http://cran.r-project.org/web/views/Graphics.html
The point is there are lots of alternatives. If you would like to use
web-based visualisation d3 is
David Osborne daosborne at gmail.com writes:
Browsing the web recently, I came across what I think is a new utility for
generating an interactive, web-based R graph of data from a database. The
generated graph can be manipulated by a user to choose different data,
limits, etc. I would like
Hi,
Assuming the data structure is similar to this example:
Hi,
Let say I have a date variable:
asd - as.Date(2012-01-03)
asd
[1] 2012-01-03
Now, I want to express this date like 3/1/2012.
can somebody help me how to achieve that?
Thanks,
__
R-help@r-project.org mailing list
try this:
asd - as.Date(2012-01-03)
asd
[1] 2012-01-03
format(asd, format = '%m/%d/%Y')
[1] 01/03/2012
On Wed, Dec 26, 2012 at 1:31 PM, Ron Michael ron_michae...@yahoo.com wrote:
asd - as.Date(2012-01-03)
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to
forgot you were asking for mdy format
# interchange day and month
format(asd, format = '%d/%m/%Y')
[1] 03/01/2012
On Wed, Dec 26, 2012 at 2:14 PM, jim holtman jholt...@gmail.com wrote:
try this:
asd - as.Date(2012-01-03)
asd
[1] 2012-01-03
format(asd, format = '%m/%d/%Y')
[1]
If you don't have to be finicky about leading zeros, the easy way is:
as.character(asd,format=%d/%m/%Y)
?strptime
If you are going to be finicky, then
asdlt - as.POSIXlt(asd)
with(asdlt,sprintf(%d/%d/%d,mday,mon+1,year+1900))
?as.POSIXlt
?sprintf
On Dec 25, 2012, at 11:58 PM, Roberto wrote:
I wrote, finding pieces of code in the web, a simple script to draw
a 3D
gaussian plot.
For the next step, I need that the 2 gaussian distributions have
different
colors.
Can someone help me to do this?
fn - function(x, y, scale, scale2)
you can remove the leading zeros wirh the following regular expression;
gsub((^0|(/)0), \\2, format(asd, format = '%d/%m/%Y'))
[1] 3/1/2012
On Wed, Dec 26, 2012 at 2:25 PM, Ron Michael ron_michae...@yahoo.com wrote:
Thanks Jim for your reply.
However I want 3/1/2012 not 03/01/2012
Any
On Dec 26, 2012, at 4:44 AM, Robin Corrià wrote:
Dear R users,
I have a list of objects of type im
mylist$sp1
$sp2
$sp3
and I want to convert them to a list of objects of class
SpatialGridDataFrame
This works for a single object of class im:
a - mylist$sp1
b - as(a,
Thanks Jim for your reply.
However I want 3/1/2012 not 03/01/2012
Any idea ?
Thanks
- Original Message -
From: jim holtman jholt...@gmail.com
To: Ron Michael ron_michae...@yahoo.com
Cc: r-help@r-project.org r-help@r-project.org
Sent: Thursday, 27 December 2012 1:01 AM
Subject: Re: [R]
HI,
format(asd,%d/%m/%Y)
#[1] 03/01/2012
A.K.
- Original Message -
From: Ron Michael ron_michae...@yahoo.com
To: r-help@r-project.org r-help@r-project.org
Cc:
Sent: Wednesday, December 26, 2012 1:31 PM
Subject: [R] Working with date
Hi,
Let say I have a date variable:
asd -
I have problems with very large numbers using knitr. In the following, my a
and b are extremely small and ssrr and ssru are extremely large. Knitr
delivers error messages. Scaling ssrr and ssru by 1000 resolved the problem:
ssrr -ssrr/1000 ; ssru-ssru/1000
Any clue as to how I might resolve the
Hi, I have been using Matlab to produce midi files for sonfication and
algorithmic composition projects. I would like to transfer that work into R
(in which I am a total newbie) and have been looking for a package that can
read and write midi files. No success so far so does anyone know of one? I
Hi Greg,
you can try tuneR :
http://cran.r-project.org/web/packages/tuneR/
Best,
-m
On 26 December 2012 22:04, Greg Hooper gregstuarthoo...@gmail.com wrote:
Hi, I have been using Matlab to produce midi files for sonfication and
algorithmic composition projects. I would like to transfer that
Hi all:
I have two data sets. Set A includes a long list of hits in a single
column, say:
m$V1
10
15
36
37
38
44
45
57
61
62
69 ...and so on
Set B includes just a few key ranges set up by way of a minimum in column X
and a maximum in column Y. Say,
n$X n$Y
30 38 # range from 30 to 38
52
Is this what you want:
m - read.table(text = 10
+ 15
+ 36
+ 37
+ 38
+ 44
+ 45
+ 57
+ 61
+ 62
+ 69 )
n - read.table(text = 30 38
+ 52 62 )
require(sqldf)
sqldf(select m.V1
+ from m, n
+ where m.V1 between n.V1 and n.V2
+ )
V1
1 36
2 37
3 38
4 57
5 61
6 62
On Wed,
Combine the functions with rbind(). If there are more than two, it will
probably be easier to define the function outside sapply.
dta - sapply(iris[,-5],function(x) rbind(mean(x,na.rm=T), sd(x,na.rm=T)))
rownames(dta) - c(mean, SD)
dta
Sepal.Length Sepal.Width Petal.Length Petal.Width
Suzen, Mehmet msuzen at gmail.com writes:
Hi Greg,
you can try tuneR :
http://cran.r-project.org/web/packages/tuneR/
Best,
-m
tuneR writes Wave (.WAV?) files as output; it can also write output
suitable for lilypond input -- and lilypond can write MIDI output.
Bottom line, I
Yao He wrote
Dear All:
I want to calculate the mean and sd for each column in a data.frame.
Taking data(iris) for example:
I tried sapply(iris[,-5],mean,na.rm=T) or sapply(iris[,-5],sd,na.rm=T)
to calculate the mean and sd .But sapply() transfer a function per
time. How to transfer two
thanks Mehmet - but I can't see how to read or write midifiles from the
tuneR docs. Looks primarily for wav file analysis. Am I missing something?
Greg
On 27 December 2012 09:49, Suzen, Mehmet msu...@gmail.com wrote:
Hi Greg,
you can try tuneR :
http://cran.r-project.org/web/packages/tuneR/
Thanks, Marc yes, it was Shiny that I'd seen. Thanks a lot!
regards
David
On 26 December 2012 16:31, Marc Schwartz marc_schwa...@me.com wrote:
On Dec 26, 2012, at 6:34 AM, David Osborne daosbo...@gmail.com wrote:
Browsing the web recently, I came across what I think is a new utility
Hello,
I am very new to R. I have used Matlab in the past but not extensively. I
would like to be able to convert an R script to Matlab. I should be
grateful if you would point me towards ahelpful link to do so.
Uma
[[alternative HTML version deleted]]
Hi,
Try this:
sapply(iris[,-5],function(x) rbind(mean(x,na.rm=T),sd(x,na.rm=T)))
# Sepal.Length Sepal.Width Petal.Length Petal.Width
#[1,] 5.843 3.057 3.758000 1.199
#[2,] 0.8280661 0.4358663 1.765298 0.7622377
A.K.
- Original Message -
From: Yao
Hi,
gsub(^\\d(.*/)\\d(.*/.*),\\1\\2,format(asd,%d/%m/%Y))
#[1] 3/1/2012
A.K.
- Original Message -
From: Ron Michael ron_michae...@yahoo.com
To: jim holtman jholt...@gmail.com
Cc: r-help@r-project.org r-help@r-project.org
Sent: Wednesday, December 26, 2012 2:25 PM
Subject: Re: [R]
what happens with 25/12/2012?
Sent from my iPad
On Dec 26, 2012, at 20:22, arun smartpink...@yahoo.com wrote:
Hi,
gsub(^\\d(.*/)\\d(.*/.*),\\1\\2,format(asd,%d/%m/%Y))
#[1] 3/1/2012
A.K.
- Original Message -
From: Ron Michael ron_michae...@yahoo.com
To: jim holtman
HI,
Check this link
http://stackoverflow.com/questions/6695105/call-r-scripts-in-matlab
A.K.
- Original Message -
From: Uma Shahani uma.shah...@gmail.com
To: R-help@r-project.org
Cc:
Sent: Wednesday, December 26, 2012 6:38 PM
Subject: [R] Converting R script to Matlab
Hello,
I am
try this:
colnames(df)-df_names[1:ncol(df),name]
On Sun, Dec 23, 2012 at 8:41 PM, radhi radhikum...@yahoo.in wrote:
Hi, I've got a dataframe having a code as column name. Addtionally I have
another dataframe with a two columns (and lots of rows), the first
containing the code and the second
You can try this one too.
#Set the directory to a path where all the files to be read are stored
TabletoRead=list.files(pattern=.txt)
I_Step=unlist(lapply(TabletoRead,function(tab){
srno-ifelse(exists(srno),(1+srno),1)
eval(parse(text=paste0(cvtest$,lambda.rule)))
I hope this works.
On Wed, Dec 19, 2012 at 12:57 AM, Thomas Stewart
tgs.public.m...@gmail.comwrote:
Soyeon-
A possible solution:
get(lambda.rule,envir=list2env(cvtest))
On Tue, Dec 18, 2012 at 12:34 PM, Soyeon Kim yunni0...@gmail.com wrote:
thanks Ben - hmm I think I will use a midi/csv utility
http://www.fourmilab.ch/webtools/midicsv/ and see how that goes. Another
option is http://playitbyr.org/index.html and output to Csound and from
there to midi. PlayitbyR and into Csound might be something that suits your
work, Csound being
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