Displaying 20 results from an estimated 1100 matches similar to: "miniscule font size on R console output"
2008 May 07
2
pivoting - summing up factors
Hi
I would like to know how to pivot a table that will sum the number of plants
(a or b) for each location (x,y,z)
I have read on the listserve similar questions but which involve summing up
numbers rather than factors. I have also read about the R package reshape
on the listserve but wanted to know if there's a way to do it easily without
the package
Thanks for the help!
location plant
x
2009 Sep 08
1
Point patterns and igraph
Hi,
I have a data set consisting of the x and y coordinate locations of 1600
points. I would like to generate a graph using the functions in igraph.
However the graph making functions in igraph requires the data to be in the
form of an adjacency matrix. I'd like some advice on how to convert my point
pattern to an adjacency matrix or functions out there that would do it
directly. I've
2009 Jan 09
3
create sequences from two "from" and "to" vectors
hi all,
how can I create sequences that start from a known vector, say x1 and end
with another say x2- also suppose all the sequences will be the same length.
I don't want to use a for loop
x1<-c(1,2,3,4); x2<-(3,4,5,6);
what I want is
1 2 3 4
2 3 4 5
3 4 5 6
Thanks
-----
Yasir H. Kaheil
Columbia University
--
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2008 Aug 11
2
generating a random signal with a known correlation
Hi,
How can I generate a random signal that's correlated with a given signal at
a given correlation (say 0.7)?
I've been looking at rmvnorm etc but don't seem to figure it out. Thanks
-----
Yasir H. Kaheil
Columbia University
--
View this message in context: http://www.nabble.com/generating-a-random-signal-with-a-known-correlation-tp18932541p18932541.html
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2012 Jul 12
6
read.table with numeric row names
I have a text file like this
2.5 3.6 7.1 7.9
100 3 4 2 3
200 3.1 4 3 3
300 2.2 3.3 2 4
I used "r <- read.table("a.txt", header=T)"
The row names becomes X2.5, X3.6... What I need is the row names are
numeric, so I can use the row names as numbers on x-axis for plotting. e.g.
"plot(colMeans(r)~names(r))",
2008 May 05
2
bwplot
Hi,
I have 2 questions about bwplot in R :
1) How to change the order of my different boxes in the graph ?
2) How to rename the names of the differents boxes ? because I know
how to do that with boxplot (using names) but I do not find the
equivalent parameter in bwplot.
thanks,
C?dric
2008 May 16
2
How to extract estimates, Std. Error, t Value and Pr(>|t|) from summary
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2008 May 23
1
Question about Runuran (Triangular Distribution)
The Runuran package includes a simulation for the Triangular Distribution,
urtriang. But I didn't find an analogue of the q* functions (rnorm - qnorm,
runif - qunif), that would invert the CDF (?uqtriang).
Are there any such functions?
Alberto Monteiro
2008 May 24
1
R-Excel Macro Problem
I'm trying to write R functions into VBA code. I've done this many other
times in other documents and everything has run great. But today I keep
recieving an error message "Run-time error '1004': Application-defined or
object-defined error."
Has anyone else encountered this same error message?
I do not recieve this error in the document when running regular VBA code.
2008 May 23
1
SVD on a matix
Hi All,
I performed an svd on a matrix X and saved the first three column of the
left singular matrix U. ( I assume that they correspond to the projection of
the matrix on the first three eigen vectors that corresponds to the first
three largest eigenvalues). I would like to know how much variance is
explained by the first eigenvectors? how can I find that.
Thanks for your help
--
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2012 Jul 10
1
info about R arulesSequences
Hi all, I'm new with R, recently I began to use the package
"arulesSequences" but the algorithm cspade give me this error:
Error en makebin(data, file) : 'sid' invalid
when I did executed this script,
x = read_baskets("transactions.basket",sep=",",info=c( "eventID",
"sequenceID","SIZE"))
s <- cspade(x, parameter =
2012 Jul 11
2
replacing NaN for every attribute in my data
Hi,
I have a list called ds which has the following attributes:
attributes(ds)
$names
[1] "adj.r.squared" "fstatistic" "intercept" "slope"
[5] "std.error" "tstatistic"
I want to replace all the NaN is ds with 0, and after searching past posts I
found I can hardcode it like this:
2012 Jul 19
2
change file name from file0.1_data.RData to file1_data.Rdata
Dear All,
I want to change file names.
I have file0.1_data.RData (I have several files whose names are
file0.x_data.Rdata)
I want to rename it to file1_data.RData
How can I do it?
Thank you for saving my time!
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2008 May 11
1
Creating data.frames dynamically
I have time series data in named vectors. They are all the same length for
the same dates.
The dates are in a separate vector.
I want to create a vector of numeric data for every named series, associated
with the dates in a data.frame.
So if...
Names <- c("a", "b", "c")
d <- data.frame(dates=Dates, a=vector(mode="numeric", length=length(Dates),
2008 May 16
1
Lattice box percentile plot
Dear Nabble.
I am trying to draw a box percentile plot with trellis using the panel in
Hmisc. I really want to colour the plots in. I can alter several of features
of the plot by changing the trellis par settings but I just can’t fill the
shape in.
Here is some example code which alters line colour and dot symbol:
require(lattice)
require(Hmisc)
2008 Jul 14
2
Insurance review statistical methods
Hi R users:
I will like to know if somebody works on insurance statistics
(actuarial problems) and had use TRICAST, and can tell me
if with all the R tools it can be build a solution
like TRICAST or similar.
In a word:
Do you think that R has all the statistical tools
(I mean modeling tools) to make a job similar to TRICAST?
Does TRICAST has modeling tools that are not implemented
on R yet?
2008 May 05
2
axis and tick widths decoupled (especially in rugs!)
Hi!
(a complete newby, but will not give up easily!)
I was wondering if there is any way to decouple the axis and tick mark
widths? As I understand they are both controlled by the lwd setting, and
cannot be controlled independently? For example I might want to create major
and minor ticks, which I now know how to do by superimposing two axes with
different at settings, but what if I also wanted
2008 May 07
1
help with regsubsets
Hi,
I'm new to R and this mailing list, so I will attempt to state my question as appropriately as possible.
I am running R version 2.7 with Windows XP and have recently been exploring the use of the function regsubsets in the leaps package in order to perform all-subsets regression.
So, I'm calling the function as:
2008 Jun 04
2
array of arrays
Dear R users,
I want to calculate the bias and variance of an estimator for several values
of two parameters a and b.
For example :
b1 b2
a1 bias bias
variance variance
a2 bias bias
variance variance
Can one do array of arrays ? I have tried and it did not work.
Actually I would like to get this array for several values of the number of
observations. That
2008 Jul 28
3
Fill in NA values in vector with previous character/factor
I have a vector of data (species names) interspersed with NA values
and I want a function to "fill in the blanks", replacing NA values
with whatever the last species name was.
For example the vector:
"A","B",NA,NA,"C",NA,NA,NA,NA,"D",NA,NA.
should evaluate to:
"A" "B" "B" "B" "C"