Hello,
Maybe from here ?
http://www.ie.boun.edu.tr/~hormannw/BounQuantitiveFinance/Thesis/SilaHALULU.pdf
HTH
Pascal
On Fri, May 2, 2014 at 11:11 AM, prachi jain
preciousprachi...@gmail.com wrote:
Hey, I am trying to find some of the following functions in R packages:
MLEt
pt3
Hello togehter,
i have a litte problem. I have a data.frame with a view entries like this
one:
1
A Marius Muller -\nIT Services
B Rockwood\nBrockhues
C Microlog Services\nMarcos
D Firefox Services
I now want only the first description in the column until the \n. How can
i do this?
I have a symmetric matrix, X, and I just want the first K eigenvectors
(those associated with the K largest eigenvalues). Clearly, this works:
eigs - eigen( X, symmetric=TRUE )
K_eigenvectors - eigs$vectors[ , 1:K ]
K_eigenvalues - eigs$values[ 1:K ]
rm(eigs)
In order to do that, I have to
Hello,
Something like that?
x - c('Marius Muller -\nIT Services','Rockwood\nBrockhues','Microlog
Services\nMarcos','Firefox Services')
x - sapply(strsplit(x, '\n'), '[', 1)
x
[1] Marius Muller - Rockwood Microlog Services
[4] Firefox Services
Regards,
Pascal
On Fri, May 2, 2014 at
works perfect, thank you :-)
--
View this message in context:
http://r.789695.n4.nabble.com/substring-if-a-record-has-a-n-tp4689857p4689860.html
Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing list
I wish to return True in a matrix for only the first match of a value
per row where the value equals that in a vector with the same number of
values as rosw in the matrix
eg:
A-matrix(c(2,3,2,1,1,2,NA,NA,NA,5,1,0,5,5,5),5,3)
B-c(2,1,NA,1,5)
desired result:
[,1] [,2] [,3]
[1,] TRUE FALSE
On 02-05-2014, at 09:17, Mike Miller mbmille...@gmail.com wrote:
I have a symmetric matrix, X, and I just want the first K eigenvectors (those
associated with the K largest eigenvalues). Clearly, this works:
eigs - eigen( X, symmetric=TRUE )
K_eigenvectors - eigs$vectors[ , 1:K ]
You want to have a look at the R Spatial Task View for starters...
GML files can be read by the rgdal package's readOGR function. But be
warned GML is a complex beast.
For example, I downloaded canvec_gml_AB_EN.zip from that site, it unzips to
a GML (and an xsd) with a lot of layers, some of
Hi,
Try:
indx - A==B
t(apply(indx,1,function(x) {x[duplicated(x) !is.na(x)] - FALSE; x}))
# [,1] [,2] [,3]
#[1,] TRUE FALSE FALSE
#[2,] FALSE NA FALSE
#[3,] NA NA NA
#[4,] TRUE NA FALSE
#[5,] FALSE TRUE FALSE
A.K.
On Friday, May 2, 2014 4:47 AM, nevil amos
Hi Nevil,
Try
apply(A, 2, function(x) x == B)
HTH,
Jorge.-
On Fri, May 2, 2014 at 6:46 PM, nevil amos nevil.a...@gmail.com wrote:
I wish to return True in a matrix for only the first match of a value
per row where the value equals that in a vector with the same number of
values as rosw
Hi,
Try:
dat - structure(list(`1` = c(Marius Muller -\nIT Services,
Rockwood\nBrockhues,
Microlog Services\nMarcos, Firefox Services)), .Names = 1, class =
data.frame, row.names = c(A,
B, C, D))
dat$`1` - gsub(\n.*,,dat$`1`)
dat
# 1
#A Marius Muller -
#B Rockwood
Hi,
I am trying to create multiple orthogonal designs using the Conjoint
package. I have 4 factors with 5 levels in each.
library(conjoint)
experiment-expand.grid(
price-c(a1,a2,a3,a4,a5),
tag-c(b1,b2,b3,b4,b5),
smell-c(c1,c2,c3,c4,c5),
aroma-c(f1,f2,f3,f4,f5))
Exactly.
The syntax is intended to mimic eigs() in Matlab and Octave.
library(rARPACK)
eigs(X, 10) # If your X is of class dsyMatrix
eigs_sym(X, 10) # If X is of class matrix
Best,
Yixuan
2014-05-02 4:48 GMT-04:00 Berend Hasselman b...@xs4all.nl:
On 02-05-2014, at 09:17, Mike
Hi,
Try:
dat - read.table(text=Person Time Change
2 0 3
2 10 5
2 15 7
3 0 4
3 5 2,sep=,header=TRUE)
dat1 - transform(dat,Count= ave(rep(1,nrow(dat)), Person, FUN=cumsum))
#or
##If it is ordered by Person
dat2 - transform(dat, Count=
Your original code, as a function of 'm' and 'bins' is
f0 - function (m, bins) {
t(apply(m, 1, function(x) hist(x, breaks = bins, plot = FALSE)$counts))
}
and the time it takes to run on your m1 is about 5 s. on my machine
system.time(r0 - f0(m1,bins))
user system elapsed
4.950.00
And since as.integer(cut(x,bins)) is essentially findInterval(x,bins)
(since we throw away the labels made by cut()), I tried using
findInterval instead of cut() and it cut the time by more than half,
so your 5.0 s. is now c. 0.1 s.
f3 - function (m, bins)
{
nbins - length(bins) - 1L
m -
Hi all - I am trying to parse out the attached XML file into a data frame.
The file is extracted from Hadoop File Services (HFS). I am new in using the
XML package so need some help in parsing out the data. Below is some code
that I explore to get the attribute into a data frame. Any help is
Dear R-Users,
i have to questions about plotting a forest plot with the metafor package:
1) Is there a (text()) function to add additional information (e.g.
heterogeneity statistics) under the forest plot?
2) I want to add various columns of additional information about each
study (e.g.
By dafault, write.csv will change the characters such as 5/38 as a date
May-38. How can I not change the format?
Thanks.
ChangJiang
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
I would like to encode/decode some text with deflate/gzip, but I'm
having trouble.
Decoding values from a rawConnection is fairly straightforward, but
I'm having trouble encoding values and then retrieving them.
gz_out - gzcon(raw_out - rawConnection(raw(0),open=wb))
Read your Excel documentation. AFAIK, R just writes text files -- you
need to tell Excel how to read them in.
Cheers,
Bert
Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374
Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom.
H. Gilbert
ChangJiang:
Open the .csv file with Notepad or other plain vanilla text processor,
NOT EXCEL. You will find that the columns are text. Excel
automatically converts them to dates. Read Excel's docs or get help
from someone to learn how to convert the dates back to text.
-- Bert
Bert Gunter
Hi ChangJiang,
Date conversion is one of the biggest headaches with Excel. Even if you
import those data into Excel and then specify that the column should be
text format, it won't convert the values back into what they
originally were. Be aware that Excel may, when encountering dates from a
Thank you, and thanks for writing that code! That is the perfect answer
to my question. I hope the R development team will consider expanding the
functionality of eigen() to include the option to retain only the first
few eigenvectors and/or eigenvalues. To me it seems very common in
Thanks. I still didn't get the solution. For example, I have a data frame,
called temp
temp
Chr Ref Var AFFUNAFF AFF.test pvalue
1 10 A G 2/1/240/0/1905/49 2.429e-09
2 18 G A 1/9/17 0/23/167 11/43 2.484e-04
3 1 G A 2/2/220/8/176
Hi,
How do I do something like this without using sqldf?
a - sqldf(SELECT COUNT(*) FROM b WHERE c = 'd')
or
e - sqldf(SELECT f, COUNT(*) FROM b GROUP BY f ORDER BY f)
greetings, el
__
R-help@r-project.org mailing list
This works great, thanks a lot!
-AOB
-Original Message-
From: William Dunlap [mailto:wdun...@tibco.com]
Sent: Friday, May 02, 2014 12:31 PM
To: Ortiz-Bobea, Ariel
Cc: r-help@r-project.org
Subject: Re: [R] speeding up applying hist() over rows of a matrix
And since
Hello,
I'm trying to figure out how to panel scatter plots of participant data in R
using the ggplot2 package. I do not want to display separate variables, I
simply want to create a 4 by 4 or 5 by 5 grid of scatter plots that represent
the data of each individual participant since I am looking
Are you looking for facet_wrap? facet_grid usually has two grouping variables...
---
Jeff NewmillerThe . . Go Live...
DCN:jdnew...@dcn.davis.ca.usBasics: ##.#. ##.#.
Dear List,
I'm looking for well-commented versions of various functions comprising
mgcv, so that I can modify a piece of it for a project I'm working on.
In particular I'm looking for
* testStat
* summary.gam
* liu2
* simf
Obviously I can find these by typing mgcv:::whatever. But
Hi,
With the new package dplyr you can create equivalent SQL sintaxt queries
like the one you need.
You can find examples of how to apply it here:
http://martinsbioblogg.wordpress.com/2014/03/26/using-r-quickly-calculating-summary-statistics-with-dplyr/
Read the Posting Guide, which points out that this list is for plain text
emails so you should set your email program appropriately.
Read the Writing R Extensions document, which tells you how packages are
constructed, and from which it will become clear that you want the tar.gz
package file
Hi
I second Jim's comments.
I have also been bitten by British being converted to American format as
well as ANSI numeric to a date format which I did not want .
And if you want to take a daily series from the 1890's to the 2000's caveat
emptor.
If you are dealing with dates use something that
By making the effort to learn R?
See e.g. the Introduction to R tutorial that ships with R.
-- Bert
Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374
Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom.
H. Gilbert Welch
On Fri, May 2,
Lo primero, muchisimas gracias a los que respondisteis a mis problemas
con mapas :-D
Luego, aunque la lista sea de R, tengo una duda matematica que quizas
podriais responderme. Hay algun palabro en castellano que se utilice
para designar los state process y observational process en modelos
35 matches
Mail list logo
