Displaying 20 results from an estimated 1000 matches similar to: "appending arrays"
2006 May 18
6
Newbie:problem when using validates*
Hi,
I have performed the cookbook tutorial. Before tailoring the views and
controllers, when I put in the model recipe.rb:
validates_uniqueness_of :title
validates_length_of :title, :within => 1...20
And I tried to introduce some new recipe without the above conditions I
got the message:
---------------------------------------------------
New recipe
1 error prohibited this category from
2007 May 27
1
na.approx and columns with NA's
Hi,
I have a object 'zoo':
dim(zz)
[1] 720 5551
where some columns only have NA's values (representing land data in a
sea surface temperature dataset) I find straightforward the use of
'na.approx' for individual columns from the zz matrix, but when applied
to the whole matrix:
zz.approx<-na.approx(zz)
Erro en approx(along[!na], y[!na], along[na], ...) :
need
2007 Jun 01
1
zoo matrix manipulation
Hi,
I have this dataset where columns z1.3 and z1.4 are full of NA's. I want
to perform some calculations in the remaining columns, but after doing
this, I want to recontruct the original matrix. I can with:
out <- which( colMeans( is.na( z ) ) == 1 )
gd<-z[, - out]
select the columns full of NA's and those without that pattern. Then
after doing the calculus I need to
2006 Jun 07
2
how to read hdf files under R?
Hi!
I am trying to install in my R environment the rhdf5 package and
library but it seems to have vanished from either the CRAN or
BioConductors sites.
Can you tell me where it would be possible to find it or any R
library (or function) able to read hdf files?
Sincerely,
Nicolas Degallier
UMR 7159 / IRD UR182
Laboratoire d'Oc?anographie et du Climat, Exp?rimentation et
Approches
2006 May 25
21
Converting HTML into an Image
I have this challenge of converting a bit of html into an image file
and then shrinking it into a thumbnail. The shrinking part shouldn''t
be too bad, but what advice can you give on converting the html to the
image? My thinking is that I will need to convert it to postscript or
latex and then convert it to an image from there. Is there an easier
/ better approach?
Michael
2007 Jul 23
3
Aggregate daily data into weekly sums
Dear Lest,
I have a two-variable data frame as follows (the time peirod of the
actual data set is 10 years):
Date Amount
1 6/1/2007 1
2 6/1/2007 1
3 6/4/2007 2
4 6/5/2007 2
5 6/11/2007 3
6 6/12/2007 3
7 6/12/2007 3
8 6/13/2007 3
9 6/13/2007 3
10 6/18/2007 4
11 6/18/2007 4
12 6/25/2007 5
13 6/28/2007 5
2006 May 18
0
[newbie]problem when using validates*
Hi,
I have performed the cookbook tutorial. Before tailoring the views and
controllers, when I put in the model recipe.rb:
validates_uniqueness_of :title
validates_length_of :title, :within => 1...20
And I tried to introduce some new recipe without the above conditions I
got the message:
---------------------------------------------------
New recipe
1 error prohibited this category from
2007 Jun 26
2
aggregating daily values
Hi,
I swear I have read almost all the posted messages about this issue, but
it's evident I couldn't find an answer (surely esay) to my problem. What
I want is the following:
Make 8 days aggregates from a daily series like this (dput output):
structure(c(6.91777181625366, 0.79051125049591, 9.00625133514404,
9.86966037750244, 14.4326181411743, 3.70155477523804, 9.67768573760986,
2017 Feb 14
2
pregunta
Estimados
Adjunto en excel el canal endémico de Bortman, se brindan las tasas de
cinco aaños anteriores de cualquier enfermedad endémica y no0s alerta si
nos alejamos de la media histórica (media geométrica) los intervalos de
confianza son con conversión logaritmica.
¿Es posible traducir este excel a R?
saludos
José
--
Este mensaje le ha llegado mediante el servicio de correo electronico que
2006 Nov 23
2
loading libraries on MPI cluster
Dear R-users,
we are using library(snow) for computation on a linux cluster with RMPI.
We have a problem with clusterEvalQ: after launching clusterEvalQ it seems
loading the required library on each node but if we type a function
belonging to the loaded package R doesn't find it.
> library(snow)
# making cluster with 3 nodes
> cl <- makeCluster(3, type = "MPI")
Loading
2003 Oct 21
5
do.call() and aperm()
Hi everyone
I've been playing with do.call() but I'm having problems understanding it.
I have a list of "n" elements, each one of which is "d" dimensional
[actually an n-by-n-by ... by-n array]. Neither n nor d is known in
advance. I want to bind the elements together in a higher-dimensional
array.
Toy example follows with d=n=3.
f <-
2009 Sep 03
5
abind, but on lists?
I'm trying to massage some data from Matlab into R. The matlab file
has a "struct array" which when imported into R using the R.matlab
package, becomes an R list with 3+ dimensions, the first of which
corresponds to the structure fields, with corresponding row names, and
the second and third+ dimensions correspond to the dimensions of the
original struct array (as matlab
2008 Oct 28
2
abind
I am trying to combine two arrays with different dimensions into one.
For example
The first one is
1 2 3
4 5 6
The second one is
7 8
9 10
The resulted one would be like
, , 1
1 2 3
4 5 6
, , 2
7 8
9 10
I used abind to do this, but failed. Could somebody please let me
know how to do this in R? Thanks so many.
Suyan
2013 Apr 10
6
means in tables
Hi.
I have 2 tables, with same dimensions (8000 x 5). Something like:
tab1:
V1 V2 V3 V4 V5
14.23 1.71 2.43 15.6 127
13.20 1.78 2.14 11.2 100
13.16 2.36 2.67 18.6 101
14.37 1.95 2.50 16.8 113
13.24 2.59 2.87 21.0 118
tab2:
V1 V2 V3 V4 V5
1.23 1.1 2.3 1.6 17
1.20 1.8 2.4 1.2 10
1.16 2.6 2.7 1.6 11
1.37 1.5 2.0 1.8 13
1.24 2.9 2.7 2.0 18
I need generate a table of averages, the
2005 Apr 21
1
Installing packages from source code
Hi everybody,
I have trouble in installing packages from source code by following Section
5.1 in manual R-admin.pdf . I am using R 2.1.0 and Win NT.
Following the Windows toolset section in the manual, I download the tool
set package from: http://www.murdoch-sutherland.com/Rtools/tools.zip
and unzip under C:\tools
I also downloaded Perl (Windows Port) and installed it.
2011 Aug 12
1
install packages from intranet
Hi,
I'm new to R. Apologies if this is a simple query, I've searched the mailing lists and docs but can't find a solution to my problem.
I'm trying to make some packages available on our intranet. During development the 'intranet' is a webserver running on localhost.
* When I call "install.packages" I get a mesage about not being able to access 'index
2005 Oct 21
1
Generalised rbind/cbind
Dear list,
Is there a generalised form of rbind/cbind for combining
matrices/arrays into higher-D structures? ie. if I have:
a <- matrix(2,2,2)
b <- matrix(3,2,2)
how can I get
array(rep(c(3,2), each=4), c(2,2,2))
?
It seems like this would be the job of a generalised abind function:
abind(a,b, along=1) == rbind(a,b)
abind(a,b, along=2) == cbind(a,b)
abind(a,b, along=3)
2009 Oct 18
2
rbind to array members
Hi,
I would like to add rows to arbitrary tables within a 3dimensional array.
I can directly add data to an existing row of a table:
> x <- array(0,c(1,3,2))> x[,,1] <- c(1,2,3)
And I can even add a row to the table and assign to another object.
> y <- rbind(x[,,1], c(4,5,6))
and 'y' is what I want it to be:> y?? ? [,1] [,2] [,3][1,] ? ?1 ? ?2 ? 3[2,] ? ?4 ? ?5 ? 6
but
2012 Mar 13
1
Visualising multiple response contingency tables
Dear R Help Community,
I have a question and an answer (based on reading this forum and online
research), but I though I should share both since probably there's a much
better way to go about my solution. My question is specifically about how
to best visualise multiple response contingency tables. What I mean by
'multiple response' is that the total number of responses per row of a
2011 Jan 20
1
syntax for a list of components from a list
I'm attempting to generalise a function that reads individual list components, in this case they are matrices, and converts them into 3 dimensional array. I can input each matrix individually, but want to do it for about 1,000 of them ...
This works
array2 <- abind(list1[[1]],list1[[2]],list1[[3]],along=3)
This doesn't
array2 <- abind(list1[[1:3]],along=3)
This doesn't either