Displaying 20 results from an estimated 4000 matches similar to: "akima error"
2002 Mar 01
3
calculating std err (SEM)?
Is there a "canned" function in R for finding the standard error of the
mean? I have tried
> sem <- function(x) c(mean =mean(x),
+ SEM = stdev(x)/sqrt(length(x)))
> sem(pnet.lai)
Error in sem(pnet.lai) : couldn't find function "stdev"
It looks like there is no stdev function in R
Thanks,
Kirk
Kirk R. Wythers email: kwythers at umn.edu
University of
2002 Feb 28
2
no gui option on freebsd
I just compiled R on my freebsd box. I don't see anything when firing it
up with -g or --gui or --gui=X11, etc... only the standard > prompt (see
below). Is that what I should expect? I'm running the kde desktop if
that matters. Any suggestions from those who use R on freebsd?
Thanks
Kirk
bash-2.05a$ R
R : Copyright 2001, The R Development Core Team
Version 1.3.1 (2001-08-31)
2001 Dec 07
1
trouble getting my first app to install (JMP)
I am struggling to get JMP installed. When I try launching the installer
with "wine /mn/cdrom/Launch.exe", I get the JMP splash screen. When I
use the mouse to click "install" on the splash screen, I get a dialog
box with the error "Setup failed to launch installation engine:
(0x80070005). The console output reads as follows:
[kwythers@lorax kwythers]$ wine
2009 Nov 20
1
AKIMA: z values at a set coordinate
Dear all.
I am using the akima function to produce 3d contour plots using interp based
on irregular data.
using the eg in the akima manual
library("akima")
data(akima)
plot(y ~ x, data = akima, main = "akima example data")
with(akima, text(x, y, formatC(z,dig=2), adj = -0.1))
## linear interpolation
akima.li <- interp(akima$x, akima$y, akima$z)
image (akima.li, add=TRUE)
2000 Feb 07
4
Segmentation fault, devPS.c, 0.99.0 (PR#413)
Full_Name: Roger Bivand
Version: 0.99.0
OS: RH Linux 6.1
Submission from: (NULL) (158.37.60.152)
I am working on an interface between R and the GRASS geographical information
system,
written in R, with no dynamically loaded code. I have written full examples, and
tested
then under R 0.90.1, both by entering example() for each function and R CMD
check, both
of which worked without problem.
Under
2006 Feb 01
1
akima 0.4-5, interpp() bug = COMMON block problem
Hi,
I'm currently hunting a bug in the akima library, especially in the code
behind the interpp.old function (bi-variate linear interpolation).
It is based on a triangulation algorithm, interpolation at a given point
needs to know the triangle which contains this point, then the
interpolation is a straightforward calculation based on the three
vertexes.
The problem is: Sometimes the triangle
2023 Jan 26
1
akima interp results to zero with less than 10 values
The akima package has a problematic license (it doesn't allow commercial
use), so it's been recommended that people use the interp package
instead. When I use interp::interp instead of akima::interp, I get
reasonable output from your example.
So that's another reason to drop akima...
Duncan Murdoch
On 26/01/2023 9:35 a.m., PIKAL Petr wrote:
> Dear all
>
> I have this
2023 Jan 26
1
akima interp results to zero with less than 10 values
Dear all
I have this table
> dput(mat)
mat <- structure(c(2, 16, 9, 2, 16, 1, 1, 4, 7, 7, 44.52, 42.8, 43.54,
40.26, 40.09), dim = c(5L, 3L))
And I want to calculate result for contour or image plots as I did few years
ago.
However interp does not compute the z values and gives me zeros in z matrix.
library(akima)
> interp(mat[,1], mat[,2], mat[, 3], nx=5, ny=5)
$x
[1] 2.0 5.5
2000 Apr 17
2
akima core dumps on loading (PR#521)
Full_Name: Massimo santini
Version: 1.0.1
OS: Linux
Submission from: (NULL) (159.149.147.89)
I've just dl the .rpm of R 1.0.1, installed it and then launched
insatll.packages("akima")
after re-launching R [--vanilla], the command
library(akima)
has the only effect to coredump the program. Here is the output of gdb and
strace...
--- GDB (commands given can be seen from the
2000 May 04
2
acepack, akima and tripack will not load (PR#533)
Full_Name: Michael R. Allen
Version: 1.01
OS: linux redhat
Submission from: (NULL) (149.149.32.46)
Hello,
Thought you might be interested. I tried to load the package tripack
needed by the sgeostat package. After some careful searching, three packages
were
found which had the same error. Here is the output.
Mike
> library(acepack) Error in dyn.load(x, as.logical(local),
2016 Apr 27
1
AKIMA or translating to FORTRAN a R function calling a FORTRAN routine
Hi,
I am hired to translate into FORTRAN R functions. It works great and my customer is happy. I am going to translate a function that call aspline in the library AKIMA.
This function call 2 FORTRAN routines that must be include (I guess) in the package AKIMA. And I have some questions.
Is the fortran code really included in the R package AKIMA ?
In other word, do I have a mean to call these 2
2008 May 29
1
akima interpolation and triangulation question
Dear all;
First of all, this is probably a more conceptual question than a
R-related one, but still want to give it a try. When working with the
interpolation function "interp" from the package akima and the
triangulation function "tri.mesh" from package tripack I've got NA's
for the interpolation and "error" for the triangulation. The data is
arranged in a
2011 Mar 18
1
akima::interp "scales of x and y are too dissimilar"
Dear R users,
I want to do a fitted.contour plot of selected columns of a dataframe M with
M$AM and M$Irradiance as x and y axes respectively. The level of the contour
shall be determined by M$PR.
Some words on my data first. Dataframe M looks like:
head(M$Irradiance)
[1] 293 350 412 419 477 509
head(M$AM)
[1] 2.407 2.161 1.964 1.805 1.673 1.563
head(M$PR)
[1] 70.102 72.600 75.097 80.167
2005 Oct 03
2
interpolation using akima (PR#8174)
Full_Name: Jonathan Lees
Version: 2.0.1
OS: linux-gnu
Submission from: (NULL) (152.2.75.65)
there is a problem with calculating the convex hull in 2-D interpolation using
the codes interp fromt eh akima package:
x =c(0.6505304, -1.1821562, -0.2600792, 0.7913716)
y = c(1.0424226, 0.1754048, -1.4523334, 0.2349112)
z = c(0.000, 3.042, 0.370, 0.122)
EX = seq(from=min(x), to=max(x),
2011 Feb 10
1
problem with R (akima, fUtilities) in Ubuntu 10.04
Dear all!
I'm using R 2.12.1 in Ubuntu 10.04.
Problem is that when using functions like interp (package akima) and
akimaInterp (package fUtilities), I get different results every time for
the same data set. I've checked the interpolated results, and two
examples (in attachment) have different sum of NA values. Also when I
subtract the x,y,z values from two interpolations of the same data
2009 Jul 01
0
The step before interfacing to GRASS
Dear all,
A very basic terrain calculated as a matrix from Spatial Points Patterns:
#interpolate using the akima package
library(akima)
terrain=interp(ppoints$x,ppoints$y,ppoints$marks,xo=x0,yo=y0, linear=F)
> class(terrain)
[1] "list"
> class(terrain$x) #these are the x-coord i.e: [1...1000]
[1] "numeric"
> class(terrain$y)#these are the y-coord i.e: [1...1000]
[1]
2007 Jun 07
0
Using Akima with nearly-gridded data
I am using the Akima interpolation package to generate an interpolated
color contour plot. It is working very well, except for one problem.
The data that I have represents real-time readings from a thermistor
string vs. time, so the data points are often very nearly in a
rectangular array, since the thermistors are read at regular time
intervals and they are equally spaced physically.
2010 Jan 26
1
sp package coordinates and gridded problems with as.list()
Dear All I hope that someone can help.
I am working with sp pakage and akima
library("akima")
library(sp)
imagine lots of different dataframes, of row = 100 columns = 3 of x and y
coordinates with z values I will call these data frames for the sake of this
example akima
akima<-as.list(1:100)
producing 100 dataframes dataframes of the form akima[[i]]
I then wish to interp this
2008 Jul 09
1
Help with installing add-on packages
Dear R users.
Recently I wanted to update my R distribution to the current one (R-2.7.1). I am running a Fedora core 8 distirbution. The installation went fine, but when I tried to add some additional packages the majority made an exit with an error. Only a few least demanding (e.g. RColorBrewer) managed to get through the installation process.
What happened between the versions 2.6.x and 2.7.x
2008 Sep 18
2
Problem installing packages in newer versions of R
Dear all,
I was wandering what could be wrong with my system (regularly updated Fedora core 8) so that installing packages does not succeed with almost every package. I follow the procedure specified in the help file R-admin section 6.3. This is not a feature new to the current version but happened (to me) in the previous version as well. Additionally R-help html pages try to follow wrong links