similar to: Dampening the spline interpolation for contours

Hi everyone I was using spline to interpolate 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

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

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),

Hi All, I am trying to reproduce this using R instead. [image: Full-size image (38 K)] I tried using the following code *SChla <- read.csv("SM_Chla_data.csv")* *Atlantis <- SChla[16:66,]* *head(Atlantis)* * * Seamount Station Depth Pico Nano Micro Total_Ch dbar Latitude Longitud 16 Atlantis 1217 Surface 0.0639 0.1560 0.0398 0.2597 2.082 -32.71450 57.29733

Dear all, I'm trying to interpolate a dataset to give it twice as many values (I'm giving the dataset a finer resolution by interpolating from 1 degree to 0.5 degrees) to match that of a corresponding dataset. I have the data in both a data frame format (longitude column header values along the top with latitude row header values down the side) or column format (in the format latitude,

Dear all, I'm having trouble interpolating a number of gridded datasets that I have. I'm quite new to R so any help/advice that can be offered would be much appreciated! Firstly I'll describe my dataset. The data is a grid of the planet at 1 degree spatial resolution, with each grid cell containing a value describing a particular variable (e.g. population density) for coordinate

I've been told that you may be able to help. I have a complex linear model with multiple two-way interaction terms. Is there a way to view the interaction terms in a 3d plot equivalent to the S functions: > plan<-interp(x,y,z) > image(plan) where x and y are my explanatory variables and z my response variable. Thanks, Jonatha Davies

Readers, I have data with different time stamps that I wish to plot (for example): data set 1 time(hh:mm:ss),datum 01:00:00,500 01:00:15,600 01:00:30,750 01:00:45,720 01:01:00,700 01:01:15,725 01:01:30,640 01:01:45,710 data set 2 time,datum 01:00:12,20 01:01:01,55 01:01:55,22 The time interval in data set 1 does not change, but the time interval in data set 2 does change, such that for a

Readers, I have looked at various documents hosted 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

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

Hi, I would like to make a contour plot using R with the following information (data at the end): x-axis= arranged according to day (from 1 to 365, labels= use months; up to 365 days in one year), y-axis= depth (labels from 0 at the top to 7 at the bottom; this is a water depth profile), and z-axis= pH. So, this would be a pH contour plot of different dates throughout a year, with pH measured at

Hello, I have a dataset with 4 variables, each consisting of a vector, all with the same length. I start by interpolating the first three variables using the function "interp", and plot the interpolation successfully using "filled.contour". I then interpolate the first two variables and a fourth using "interp" again, but when I try to overlay the contour lines

After configuring my home network, aMSN segfaults. I posted this issue originally in the aMSN forums under this thread: http://www.amsn-project.net/forums/viewtopic.php?t=7593 I was told that my issue is related to SAMBA, referring this thread: http://www.amsn-project.net/forums/viewtopic.php?t=6343 After uninstalling SAMBA, aMSN stops segfaulting and works as expected. After installing it

This lets you write simple plugins in Tcl. All the basic features of nbdkit are supported, but serious Tcl users will probably want to enhance the plugin further. Unfortunately Tcl as a language is not very well suited to handling binary data. It prefers to store binary data in UCS-2 strings, meaning that every second byte is wasted. Also there appears to be no way to replace part of such a

Hello, My colleague and I would like to write Java code that invokes R to do a simple TTest. I've included my sample java code below. I tried various alternatives and am unable to pass a vector to the TTest method. In my investigation, I tried to call other R methods that take vectors and also ran into various degrees of failure. Any insight you can provide or other Web references you

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

From: Thorvald Natvig <slicer at users.sourceforge.net> Some optimizing compilers miscompile the current SSE optimizations when full optimizations are enabled. By using output value pointer instead of a return value, we can bypass this misbehaviour. --- libspeex/resample.c | 8 ++++---- libspeex/resample_sse.h | 24 ++++++++---------------- 2 files changed, 12 insertions(+), 20

Hello R-help I have the following data for a standard curve concentration(nM),fluorescence 0,48.34 2,58.69 5,70.83 10,94.73 20,190.8 50,436.0 100, 957.9   (1)Is there function in R to plot a spline. (2)How can I interpolation,say 1000 point from 0nM-100nM and store this as a data frame of concentration,fluorescence (3)How can I modify the code below so that instead of retrieving a concentration

Hello, System info: Sparcstation 5, Solaris 2.7, openssl-0.9.8i. I've tried to install openssh-3.9p1 openssh-4.9p1 openssh-5.1p1 all failed the similar way. The following is the last portion of the 'make install' printout. ./install-sh -c -m 0755 -s ssh /usr/local/bin/ssh BFD: /usr/local/bin/stkuaiGw: warning: allocated section `.interp' not in segment ./install-sh -c -m 0755

Hello, My user's imap folder locations are a mess. Some have them in /home/username/mail but a lot of them just have them in /home/username. So I need to have dovecot's base imapdir pointed directly at the user's homedirs. My problem now is that a lot of users have many links in their homedirs. Some even have circular links, such as: /home/username/foo/foo1/foo2/foo3/foo4 ->