3D Density Plotting Solutions for [x,y,z] Data

[jemma]

I am trying to display a 3D density plot for my data [x,y,z] and have tried 'scatter3' however as some data points are the same it does not represent the density very well. There is a cool function called scattercloud on the file exchange, but this is only for [x,y] data. I would appreciate any suggestions. Thanks

 

[MisterX]

You could change the color (or marker size) to represent the number of points at the same location. If you're interested I can provide more help for doing this.

I suppose even if you did this, density might not be represented well, as having points that were close but not exactly the same wouldn't result in a color change. Instead, you could divide the volume up into pieces, get a count of the points in each piece, and then assign a corresponding color to each piece.

 

[Pythagorean]

looks like somebody found a solution on mathworks forum:

http://www.mathworks.se/matlabcentral/newsreader/view_thread/268693

 

[jemma]

Thanks all for your replies. MisterX, how would I go about plotting different colours to represent different densities? Thanks again.

 

[alphy]

Thank you for sharing your question. I understand the importance of accurately representing data in a visually appealing and informative manner. In this case, it seems that the scatter3 function is not the best option for displaying your [x,y,z] data as it does not effectively represent the density of the data points.

One potential solution could be to use a 3D density plot function, such as the "scatterdensity3" function on the file exchange. This function takes into account the density of the data points and creates a more comprehensive visual representation. Additionally, there are other 3D plotting functions available that may better suit your specific data set.

Another option could be to use a 3D contour plot, which can also display the density of the data in a visually appealing way. This can be achieved using the "contour3" function in MATLAB or other similar software.

I would also recommend considering the use of color mapping in your 3D plot, as this can help to differentiate between data points and better convey the density of the data.

Overall, I would suggest experimenting with different 3D plotting functions and techniques to find the best solution for your specific data set. I hope this helps and good luck with your research!