Displaying 7 results from an estimated 7 matches for "datavector".
2013 Jul 25
1
GGplot 2 – cannot get histogram and box plot axis to match.
...ity? under choose a column, then finally select box plot.
Sample code:
Below is a snippet of my code to demonstrate the problems I have.
library(ggplot2)
#sample data from ggplot2
data(Cars93, package = "MASS")
dataSet <- Cars93
#variables to calculate the range to extend the axis
dataVector <- unlist(dataSet[,"MPG.city"])
dataRange <- max(dataVector) - min(dataVector)
graphRange <- c(min(dataVector) - dataRange/5,
max(dataVector) + dataRange/5)
#making the box plot
theBoxPlot <- ggplot(dataSet,aes_string(x = "MPG.city",y = "MPG....
2007 Jan 26
2
Use a text variable's value to specify another varaible?
Greetings guRus --
If a variable, e.g., 'varname', is a character string, e.g. varname <-
"datavector", and I want to apply a function, such as table(), to
datavector, what syntax or method will do so using only the variable
varname? This seems similar to indirect addressing, but I have not seen
a method for it in the R manuals. Is there a general name for such
indirect reference that one mi...
2013 Jan 28
1
gigFit problems
...e GIG equation
in another curve fitting program, I would really like to use R's tools
for confidence intervals and manipulations; but the problems below make
me uneasy.
Problem one (from examples with parameter change):
Code:
paramStart.X2002<-c(2.044, .622, 2)
param<-paramStart.X2002
dataVector <- rgig(500, param = param)
gigFit(dataVector)
Result
Data: dataVector
Parameter estimates:
chi psi lambda
0.007543 0.722962 2.535284
Likelihood: -644.6349
Method: Nelder-Mead
Convergence code: 0
Iterations: 104
Notice that the chi parameter is...
2004 Apr 08
1
Why are Split and Tapply so slow with named vectors, why is a for loop faster than mapply
...)
Timing stopped at: 83.22 0.12 84.49 NA NA
The same thing happens with using tapply with a named vector such as:
tapply(actTime, chainId, function(x) x)
Using the following function with a for loop accomplishes the job in a few
seconds for all 70,000+ records:
> splitWithNames <- function(dataVector, nameVector, factorVector){
+ dataList <- split(dataVector, factorVector)
+ nameList <- split(nameVector, factorVector)
+ listLength <- length(dataList)
+ namedDataList <- list(NULL)
+ for(i in 1:listLength){
+ x <- dataList[[i]]
+ names(x) <- n...
2009 Jul 02
1
Quantitative Risk Management by McNeil
...e<-t(Return)
> fit.NH(Transpose, case="NIG", symmetric=FALSE, se=FALSE)
Error: cannot allocate vector of size 57 Kb
In addition: Warning messages:
1: In var.default(data) :
Reached total allocation of 222Mb: see help(memory.size)
2: In optim(par = theta, fn = negloglik, gr = NULL, datavector = data, :
Reached total allocation of 222Mb: see help(memory.size)
3: In optim(par = theta, fn = negloglik, gr = NULL, datavector = data, :
Reached total allocation of 222Mb: see help(memory.size)
In the attachment you can find the description of the function.
the link where I took this sof...
2004 Jun 18
2
Barplots and error indicators: Some R-Code
I' ve seen that several people are looking for a function that creates a
barplot with an error indicators (I was one of them myself). Maybe you will
find the following code helpful (There are some examples how to use it at
the end):
# Creates a barplot.
#bar.plot() needs a datavector for the height of bars and a error
#indicator for the interval
#many of the usual R parameters can be set: e.g. ylim, main, col, etc.
#The direction of the error indicator can be specified as "bo" for both,
"lo" lower, "up" #upper
#The width of the indicator hat is s...
2016 Mar 07
2
GSOC-2016 Project : Clustering of search results
On Mon, Mar 07, 2016 at 01:36:43AM +0530, Richhiey Thomas wrote:
> My questions are:
> 1) Can you direct me on how to convert this raw idea into a proposal in
> context to Xapian with more detail? What areas do I focus on?
Our GSoC guide has an application template
<https://trac.xapian.org/wiki/GSoCApplicationTemplate> which you
should use to structure your proposal. It has some