similar to: Help on plotting a 3 dimensional surface

Dear All Do you know some functions that can perform the PRINCIPAL SURFACE estimation? Please give me a hint. Thanks for your help in advance. Fred [[alternative HTML version deleted]]

It is a trivial matter to adjust the linewidth of the axes and plot line in a 2D plot: x <- 1:10; y <- 1:10; par(lwd=2); # axis (and others) linewidth plot(x,y,"l",lwd=6); # plot linewidth Is there anything comparable to this for persp or wireframe? I've tried a number of ways, and the framebox/axes seem to be linked to the linewidth used in generating the

I have looked through the documentation and have not been able to find a way of using an xlim, ylim, or zlim type option on rgl.surface. I know that persp3d has the option, but seems to only be able to expand the axes not reduce them. Is there anyone who has an idea of how to do this? Thank you for your time. [[alternative HTML version deleted]]

Hello, I am looking for a R routine to fit a function/surface to my data 3d data. I'd like to use the function in a model so something like splines is not applicable. The data are smooth and can provide a plot if helpful. Thanks, Mark

Hi list, I'm struggling with plotting a 3d data set. I have a data frame with x,y and z values. They occur in no particular order (ie x and y are not ordered). However, I want to visualize the data using a contour plot. Now, the x,y and z data going into contour() are supposed to be ordered. My question is: Is their a quick way to re-arrange my data such that it can be fed to contour()?

step # 1 ?read.csv -- View this message in context: http://r.789695.n4.nabble.com/How-to-create-a-3d-Surface-plot-from-a-CSV-file-tp3437463p3437478.html Sent from the R help mailing list archive at Nabble.com.

Good morning, I am Marta Colombo,student at Politecnico,Milan. I am studying local regression models and I am using loess function. My problem is that when I have a loess object I don't know how to display the fitted surface; in fact, while in S when you have a loess object you can see it writing plot(object), in R this dosen't work. Also I'd like to know if there is something like the

Dear R-helpers: I, an entry level R user, wonder how make a 3d scatter plot with both error bars and a flexibly fitted surface. Can anyone eligthen me? Many Thanks in advance. -Sean [[alternative HTML version deleted]]

Hi, there is following issue, which I encounter when doing data analysis. Say we have data in form of the matrix x: > x [,1] [,2] [,3] [1,] 0.1 4 10 [2,] 0.2 5 11 [3,] 0.1 5 12 [4,] 0.1 6 13 [5,] 0.2 4 14 [6,] 0.3 5 16 now I want to do surface plot of x[,3] with respect to axes OX:x[,1] and OY: x[,2] in ascending orders of course. Thanks in advance,

Hi.., is there any funcrion in R to fit a periodic B-spline Surface Harsh --------------------------------- Brings words and photos together (easily) with [[alternative HTML version deleted]]

All: Anyone have an idea about how to plot a PLS biplot on the x-y plane under a 3-D surface? Preferably a 3-D surface such as one created with rgl.surface() (meaning, I would love an interactive plot when all is said and done). I have seen examples which combine a 3-d surface with contour plot (e.g.

Hello Is there any R package which can do 3-D splines (reconstruct a surface based 3-D data input) ? Thanks, Zhaoming

Dear List, I am trying to plot a similar graph to attached from minitab manual in R. I have a response Y and three components which systematically vary in their proportions. I have found in R methods/packages to plot ternary plots (eg. plotrix) but nothing which can extend it to response surface in 3-D. Any help appreciated, Tim Carnus [[alternative HTML version deleted]]

Hi I'm interested in doing a anisotropy analysis of some spatial data and I want to do a contour plot of a covariance or variogram surface to visualize the directions of maximal and minimal anisotropy. I know how to do a contour plot :-) but how can I obtain the variogram surface having a geoeas format dataset (X, Y, Z) ? Thanks EJ

Dear all, I am attempting to use RSM in order to optimise the analysis of volatile compounds. After changing two variables and performing a series of measurements, I get the following: X1 X2 resp 1 -0.8 -1.0 1101039 2 -0.8 0.0 809947 3 -0.8 1.0 814664 4 0.0 -1.4 759484 5 0.0 0.0 665916 6 0.0 0.0 654054 7 0.0 0.0 641134 8 0.0 0.0 673143 9 0.0 0.0

Hello All I am currently looking at spatial data - Chorophyll A concentration in sea water over a wide geographic area. These data are used to determine the location of ocean fronts and hence where tuna are located. A front is identified by a steep gradient in the change in chloroA concentration. I have been looking at these data qualitatively using persp, contour, and image but would like to

How do I rotate 3D plots/surfaces generated by either cloud or wireframe? Thanks. Marc Marc W. Zodet, MS Health Statistician Agency for Healthcare Research and Quality [[alternative HTML version deleted]]

Hi all, I'm working with radar remote sensing data and want to measure the height of 3d spikes created by backscatter from bright objects. My thought is to fit a gaussian density function to each spike and extract the x, y and z location of the peak. Can anybody give me a hint of how to do this? Thanks, Alan [[alternative HTML version deleted]]

Hi, I'm looking for ideas or packages with relevant algorithms for calculating the connectivity across a grid, where connectivity is defined as the minimum amount of cross-sectional area along a continuous path. The upper boundary of the cross-sectional area is a fixed elevation, and the lower boundary is a gridded surface of variable elevation. My variable elevation surface represents the

Hi, thanks for the help but I'm still having issues. Basically, I have two matrices of equal dimension, one should produce something similar to a heatmap.. The 2nd matrix should be the "heights" for each value of the heatmap - producing a sort of surface plot. Viewing this seems like a problem too, as I need to scale the x axis so that ~140 labels are visible. Maybe wireframe