Displaying 20 results from an estimated 10000 matches similar to: "Bug in "seq" (or a "feature") ?"
2008 Oct 01
1
Please help me to produce smoothed contour plots
Please help me to produce smoothed contour plots.
I have dependent data generated at regular intervals of two independent
variables and would like to produce smoothed contour plots - I cannot get
interp (alima) to produce cubic interpolations of the data, only linear
ones. I'm interested in smoothing as the data generation process is
stochastic and produces small variations which I'd
2013 May 27
1
Question about subsetting S4 object in ROCR
Dear list
I'm testing a predictor and I produced nice performance plots with ROCR
package utilizing the 3 standard command
pred <- prediction(predictions, labels)
perf <- performance(pred, measure = "tpr", x.measure = "fpr")
plot(perf, col=rainbow(10))
The pred object and the perfo object are S4
with the following slots
An object of class "performance"
2012 Sep 28
2
Converting array to matrix
Hi,
I have a 3d array as below, I want to make this array to a matrix of p=50(rows) and n=20(columns) with the coverage values .
The code before the array is:
library(binom)
Loading required package: lattice
pi.seq<-seq(from = 0.01, to = 0.5, by = 0.01)
no.seq<-seq(from = 5, to = 100, by = 5)
cp.all = binom.coverage( p = pi.seq, n = no.seq , conf.level = 0.95, method = "exact")
2009 Jul 21
1
problem with heatmap.2 in package gplots generating non-finite breaks
I have written a wrapper for heatmap.2 called
heatmap.w.row.and.col.clust which auto-generates breaks using
breaks<-round((c(seq(from=(-20 * stddev), to=(20 * stddev))))/20,
digits = 2) #(stddev in this case = 2.5)
This has always worked well in the past but now I am getting an error
that non-finite breaks are being generated. Drilling down, it seems
that my wrapper is generating finite
2005 Jun 17
4
3D Scatter Plot
Hello:
I would like to be able to do a 3D scatter plot from 3 variables, 2
independent and 1 dependent. The closest R function I could find for
this is "cloud". However cloud uses, as input, a matrix where the value
of each matrix element is the dependent variable value at that matrix
coordinate. My problem is that the independent variable values are
floating point and can be of
1998 Nov 14
1
seq() in 0.62.4 and 0.63
Solaris 2.6, R Version 0.63.0 (November 14, 1998)
Version 0.62.4 (October 24, 1998)
> seq(0.15, 0.70, 0.05)
[1] 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65
The much reviled (on r-help) 0.62.3 got such simple cases right (even if
0.62.1 did not).
Jim Lindsey insisted that such bugs are reported here, so I am. And yes,
this is a real example and leads to an
2011 Feb 10
3
help - "the condition has length > 1 and only the first element will be used"
Hello there,
I don't know if I'm addressing my question to the right e-mail address, I hope I do. Actually I have a little problem concerning writing a code in R. I try to briefly sum up my problem.
As you can see below, I created the functions "Equation1" and "Equation2" with some conditions.
Equation1 <-function(x){
if
2011 Apr 23
3
Problem having tick marks aligned when plotting three graphs on top of one another.
R 2.10
Windows 7
I am trying to plot three graphs on top of each other. I need to have the axises perfectly aligned. For some reason the ticks on the y axes are slightly off so they do not perfectly align. Can someone tell me how I can get the to overlay each other perfectly? I thought the yaxp parameter would solve my problem, but it does not. My data and code follows:
>
2007 Sep 18
10
Routes
hi all,
I want to move some routing tasks out of the router and into the
controller. The goal is to make Merb feel less like mod_rewrite and
give the user more control at the controller. The new Router is
simple: it takes the path_info (not the whole request) then outputs a
controller class and some parameters from the path matching. The rest
of the routing would be done at the controller level.
2010 Mar 31
1
Weird R behaviour?
Dear list,
I have observed a weird behaviour from R --- apologies if I am missing
something obvious!
df3f826f28
df3f826f28
Say you type in R:
>c.preec <- 10074
>c.gd <- 2200
>p1 <- .2
>c.neo <- p1*9451 + (1-p1)*3883
>n.preec <- 3710
>n.gd <- 2650
>n.neo <- 2120
>n.pcos <- 53000
>unit.met <- 94
>cost.met <- 94*n.pcos
>effect <-
2010 Sep 08
3
regression function for categorical predictor data
Hi, do you guys know what function in R handles the multiple regression on
categorical predictor data. i.e, 'lm' is used to handle continuous predictor
data.
thanks,
karena
--
View this message in context: http://r.789695.n4.nabble.com/regression-function-for-categorical-predictor-data-tp2532045p2532045.html
Sent from the R help mailing list archive at Nabble.com.
2007 Apr 25
1
help
Hi all,
I have 2 questions:
1)How do I calculate the mean on an imported txt file? I've imported the
file below and that's what it looks like imported. How do I then calcuate
the mean, median, or mode on the column LeafArea using the desktop R
package?
Any help would be greatly appreciated!!
Thanks,
Nat
LeafType Leaflets LeafArea ShapeRatio LeafWeight LeafThickness
1 1
2013 Mar 06
3
About basic logical operators
Hello everyone,
I have a basic question regarding logical operators.
> x<-seq(-1,1,by=0.02)
> x
[1] -1.00 -0.98 -0.96 -0.94 -0.92 -0.90 -0.88 -0.86 -0.84 -0.82 -0.80 -0.78
[13] -0.76 -0.74 -0.72 -0.70 -0.68 -0.66 -0.64 -0.62 -0.60 -0.58 -0.56 -0.54
[25] -0.52 -0.50 -0.48 -0.46 -0.44 -0.42 -0.40 -0.38 -0.36 -0.34 -0.32 -0.30
[37] -0.28 -0.26 -0.24 -0.22 -0.20 -0.18 -0.16
2011 Jan 21
4
clustering fuzzy
hello,
i'm pete ,how can i order rows of matrix by max to min value?
I have a matrix of membership degrees, with 82 (i) rows and K coloumns, K
are clusters.
I need first and second largest elements of the i-th row.
for example
1 0.66 0.04 0.01 0.30
2 0.02 0.89 0.09 0.00
3 0.06 0.92 0.01 0.01
4 0.07 0.71 0.21 0.01
5 0.10 0.85 0.04 0.01
6 0.91 0.04 0.02 0.02
7 0.00 0.01 0.98 0.00
8 0.02
2013 May 23
1
sample(c(0, 1)...) vs. rbinom
Greetings.? My wife is teaching an introductory stat class at UC Davis.? The
class emphasizes the use of simulations, rather than mathematics, to get
insight into statistics, and R is the mandated tool.?? A student in the class
recently inquired about different approaches to sampling from a binomial
distribution.? I've appended some code that exhibits the idea, the gist of
which is that using
2013 Jan 24
4
sorting/grouping/classification problem?
Hi,
I'm a database admin for a database which manage chromatographic results of products during stability studies.
I use R for the reporting of the results in MS Word through R2wd.
But now I think I need your help:
suppose we have the following data frame:
ID rrt Mnd Result
1 0.45 0 0.10
1 0.48 0 0.30
1 1.24 0 0.50
2 0.45 3 0.20
2 0.48 3 0.60
2 1.22 3 0.40
3
2010 Jun 14
1
avoid row/column indexing in capture.output
Hi everyone,
This might be a very petty thing but Its not working for me.
I want to export an output to a txt file but without indexing.
Here is what I have tried to do
outfile<- function(Time, var.names, output) {
var.names = c(names(para))
for(i in 1: ncol(output)){
cat(length(var.names), '\n')
cat("A", "S", "C", "I", '\n')
2009 Apr 15
2
Split string
> (FICB[,"temp"])
[1] "0.30" "0.55" "0.45" "2.30" "0.45" "0.30" "0.25" "0.30" "0.30"
"1.05" "1.00" "1.00"
[13] "0.30" "0.30" "0.30" "0.55" "0.30" "0.30" "0.30" "0.25" "1.00"
2007 Nov 07
1
Aggregate with non-scalar function
R-Helpers,
I'm sorry to have to ask this -- I've not used R very much in the last
8 or 10 months, and I've gotten rusty.
I have the following (ff2 is a subset of a much, much larger dataset):
> ff2
hostName user sys idle obsTime
10142 fred 0.4 0.5 98.0 2007-11-01 02:02:18
16886 barney 0.5 0.2 94.6 2007-10-25 19:12:12
8795 fred 0.0 0.1 99.8
2007 Mar 05
4
Identifying last record in individual growth data over different time intervalls
Hi
I have a plist t which contains size measurements of individual plants,
identified by the field "plate". It contains, among other, a field
"year" indicating the year in which the individual was measured and the
"height". The number of measurements range from 1 to 4 measurements in
different years.
My problem is that I would need the LAST measurement. I only