Displaying 4 results from an estimated 4 matches for "aspline".
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spline
2009 Jan 08
2
interpolation to abscissa
...on the web site; I couldn't
find anything on interpolation. So I started r and accessed the help
(help.start()). (by the way is it possible to configure r to open help
in opera instead of firefox?) Initially I read the help for the akima
package but couldn't understand it. Next I tried the asplines package
help.
I tried to copy the example: x<-c(-3,-2,...
I realised that the 'n=...' parameter determines the resolution of the
line, so I practised the following subsequent commands:
> x<-c(-3,-2,-1,0,1,2,2.5,3)
> y<-c(0,0,0,0,-1,-1,0,2)
> plot(x,y,ylim=c(-3,3))
I g...
2010 Nov 03
3
R package BibTex entries: looking for a more general solution
...ION file is present)
People can write whatever they want here, and the result looks sort of
OK when printed by citation(), but confuses
BibTeX mightly. One example:
> citation("akima")
To cite package ?akima? in publications use:
Fortran code by H. Akima R port by Albrecht Gebhardt aspline function
by Thomas Petzoldt <petzoldt at rcs.urz.tu-dresden.de> enhancements and
corrections by Martin Maechler (2009). akima: Interpolation of
irregularly spaced data. R package version 0.5-4.
http://CRAN.R-project.org/package=akima
A BibTeX entry for LaTeX users is
@Manual{,
title = {akim...
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 routines from a FORTRAN routine compiled in a DL...
2006 Jan 25
0
Interpolating spline problems and akima
...erpolate single or two consecutive missing data points
in time series. However, when it comes to longer gaps in the data the spline
function generate new data for both my known and unknown data (see below).
Aside from not understanding why this happens, I thought thought I might try
function "aspline" in library (akima). However, I cannot install or find this
library/package.
Has anyone any instructions to install this package or help with my problem?
Using this works....
> day<-c(1,2,3,4,5,6,7,8,9,10,11,12,13)
> datfile<-c(16,23,39,37,45,34,NA,3,7,8,15,20,21)
> for (i i...