Displaying 20 results from an estimated 10000 matches similar to: "upper bound in the integrate function depends on a parameter"
2013 Apr 03
1
Problem with integrate function
Hello,
The following code of mine is giving the error:
Error in integrate(fx[[2]], 0.056, 1) :
maximum number of subdivisions reached
Can anyone help?
Thanks and Regards.
Swagato
--------------------------
fv<-vector("list")
fx<-vector("list")
v<-0
c<-0
n<-0
NOV<-0
i<-0
while(n<200){
fv[[1]]<-function(x)1 #prior function
2009 Dec 18
1
Numerical Integration
Dear @ll. I have to calculate numerical integrals for triangular and trapezoidal figures. I know you can calculate the exactly, but I want to do it this way to learn how to proceed with more complicated shapes. The code I'm using is the following:
integrand<-function(x) {
print(x)
if(x<fx[1]) return(0)
if(x>=fx[1] && x<fx[2]) return((x-fx[1])/(fx[2]-fx[1]))
2004 Mar 11
4
Summary: do.call and environments
To use the modify the solution from Tony and I
so that you can pass the name of the function, rather
than the function itself, like this:
x <- 7
fx <- function(y) print(x*y)
f <- function(fun, x) {
fun <- get(fun)
environment(fun) <- environment()
do.call("fun",list(3))
}
f("fx",2)
---
Date: Thu, 11 Mar 2004 08:22:45 +0100
From:
2016 Mar 29
1
documentation / warning when passing a vector as lower/upper bound in stats::integrate()
Dear R-dev list,
I wonder if stats::integrate shouldn't warn the user when a numeric vector
of length > 1 is passed as lower or upper bounds. If a vector is passed,
only the first value is used and the others are silently ignored:
integrate(sin, lower=0, upper=pi)
integrate(sin, lower=0:10, upper=pi)
?integrate doesn't appear to mention explicitly that the function is not
vectorised
2006 May 24
3
How to make attributes persist after indexing?
Dear All!
For descriptive purposes I would like to add attributes to objects. These
attributes should be kept, even if by indexing only part of the object is
used.
I noted that some attributes like levels and class of a factor exist also
after indexing, while others, like comment or label vanish.
Is there a way to make an arbitrary attribute to be kept after indexing?
This would be especially
2006 Oct 14
4
Build error: Debian testing, libfox1.4, FXRuby-1.4.7
I''m getting compile errors when attempting to build FXRuby 1.4.7.
This happens when installing using gems, or when installing from
source:
g++ -I. -I. -I/usr/lib/ruby/1.8/i486-linux -I/home/wayne/lab/fox/FXRuby-1.4.7/ext/fox14 -DHAVE_SYS_TIME_H -DHAVE_SIGNAL_H -I/usr/local/include/fxscintilla -I/usr/local/include/fox-1.4 -I/usr/include/fox-1.4 -fPIC -Wall -g -fno-strict-aliasing -O2
2010 Jan 27
1
term.formula error when updating an nls object
Hi,
I'm getting an error that I don't understand when updating an nls
object. Here is a toy example.
dd <- structure(list(Contrast = c(0.00376, 0.03759, 0.12782, 0.25564,
0.50376, 1), Response = c(0.29915, 6.13248, 29.01709, 30.0641,
29.46581, 27.67094)), .Names = c("Contrast", "Response"), class =
"data.frame", row.names = c(NA,
-6L))
m1 <-
2004 Mar 10
5
do.call and environments
Hello,
I want to call a function "fx" given by name, where some "global"
variables (in the environment of fx) are passed to the function. For
compatibility reasons I cannot modify the parameter list of fx and I
want to avoid setting variables in the global environment (e.g. via <<-)
Is there a way, how to do this?
Thomas P.
The example:
fx <- function(y)
2009 Feb 04
3
factor
I am looking into change the numeric order in the level of the factor
> x<-c("A","B","C")
> fx<-factor(x)
> fx
[1] A B C
Levels: A B C
> factor(x)
[1] A B C
Levels: A B C
> as.numeric(fx)
[1] 1 2 3
I want to change the order of the numeric into 3 corresponds to ?A? level, 2
corresponds to ?B? level and 1 corresponds to ?C? level
So when I
2011 Apr 09
1
How do I make this faster?
I was on vacation the last week and wrote some code to run a 500-day
correlation between the Nasdaq tracking stock (QQQ) and 191 currency pairs
for 500 days. The initial run took 9 hours(!) and I'd like to make it
faster. So, I'm including my code below, in hopes that somebody will be able
to figure out how to make it faster, either through parallelisation, or by
making changes. I've
2005 Sep 29
2
solution of convolution equation
Hello,
May be somebody can help me...
I am trying to find a solution of a convolution equation using fft (and
unfortunately I do not have a good background for this).
So I am just trying to figure out how it can be implemented in R. I have
two multidimensional independent variables X and Z
and I know their densities fx and fz, which are multidimensional arrays.
So I have to find the density of
2010 Jun 02
1
lattice, xyplot, using "panel.segments" by just addressing one panel
Hi R experts,
I'm using the xyplot function in lattice to draw a multipanel plot consiting
of 5x6 scatterplots.
Now I need to link single points in each of those scatterplots (=panel),but
the points, that need linking are different for each panel.
I tried to use the panel.segments function for that, but I can't address
each panel separately. Links right for panel 1, show up in all other
2004 Nov 26
2
T1 and FX CPE
Hey guys,
Looking for some suggestions here on hardware to use. We have several
business customers wanting to start using our VoIP service. We will be
replacing their 10 year old Panisonic system with Cisco 7940 phones and a
T1. Problem is, they have to keep 1 POTS line for directory listing and 911
emergency failover.
I would like suggestions on how to accomplish this. Our asterisk cluster
2013 Jul 23
1
Help with using unpenalised te smooth in negative binomial mgcv gam
Hi,
I have been trying to fit an un-penalised gam in mgcv (in order to get more
reliable p-values for hypothesis testing), but I am struggling to get the
model to fit sucessfully when I add in a te() interaction. The model I am
trying to fit is:
gam(count~ s(x1, bs = "ts", k = 4, fx = TRUE) +
s(x2, bs = "ts", k = 4, fx = TRUE) +
te(x2, x3, bs =
2009 Feb 12
1
Latex or html output for freq() in prettyR
Hi Everybody
I need to create a lot of frequency tables with frequencies and percentages
(and cumilative freq and % as well) for a report. freq() in prettyR give
more or less what I need.
I am trying to export the result of freq() to html but the html doesn't look
look the console output.
See the following example
library(prettyR)
library(Hmisc)
x <- matrix(sample(1:3, 12,
1999 Oct 08
1
floor(NaN) problem fixed in massdist.c (PR#291)
Full_Name: Naoki Takebayashi
Version: 0.65.0+R-release.diff (Oct 6, 1999)
OS: Linux/Alpha
Submission from: (NULL) (129.79.224.171)
This will fix the "problem 2 (crash in fft)" in Bug ID #277
On Linux/Alpha, make check failed because R could not handle the following
example in base-Ex.R
##___ Examples ___:
# The Old Faithful geyser data
data(faithful)
:
:
## Missing values:
x <-
2011 May 01
2
Marginal a partir de la densidad conjunta
Cordial saludo.
Estoy trabajando con una densidad conjunta algo elaborada (suma y cociente
de dos variables aleatorias positivas usando la cópula Frank) y requiero
encontrar la distribución marginal de cada una de las variables. A manera de
ejemplo (no es el caso específico, que tiene mucho más código), si partimos
de la distribución exponencial bivariada
#-----
theta<-0.5
2011 Dec 22
1
RGtk2: How to overlay a gtkDrawingArea with a button or any other widget?
I try to overlay a plot inside a gtkDrawingArea with a button (or any other widget).
I tried to put both into a gtkFixed container.
But this does not work, no printing occurs.
Does someone know a solution?
What I tried:
w <- gtkWindow()
w$setSizeRequest(400,400)
fx <- gtkFixed()
da <- gtkDrawingArea()
fx$put(da, 100, 100)
asCairoDevice(da)
par(mar=c(0,0,0,0))
plot(1:10)
btn.1
2009 May 11
1
Plot bivariate joint pdf
For a homework question.
I was wondering if rcmdr has a function to plot a graph of a bivariate
function of X and Y.
I have a function with joint pdf
fX,Y(x,y) = x+y for 0<x<1 , 0<y<1
I've tried
> x <- seq(0,1,.001)
> y <- seq(0,1,.001)
> r = x+y
> plot(r)
but it seems to just add them together say .2+.2 .3+.3 not other
possibilities like
.9 + .1
Thanks
2002 Dec 12
1
equation on the object
Hi,
I try to put an equation on a object to use in curve for example,
but it don't work, it possible to make a object of an equation?
ex.
fx <- a + b*x
for(a in 0){for(b in 1){curve(fx,...)}}
Thanks you
Ronaldo
ps. Exist in R any functions to estimate severals curves parameters (non
interactive) for a dataset? Something like table-curve 2d.
--
If Karl, instead of writing a lot about