+ Reply to Thread
Results 1 to 3 of 3

Plotting a 3 variable (X,Y,Z) graph

  1. #1
    Registered User
    Join Date
    MS-Off Ver

    Question Plotting a 3 variable (X,Y,Z) graph

    Hello all,

    Short question:
    Is it possible to plot a graph with 3 variables? If so, how?

    Long question:
    I have a data set which should correlate measured speed particles with distance and effective charge (explosives). Several equations allow me to estimate this speed. I used Excel Linear regression tool on each equation and one of the best results comes from a three variable equation. Now, to I would very much like to present the results in a graph. For this kind of analysis I usually use scatter point graph. However I tried to use the 3D graphs to be able to incorporate the third variable. This did not work (or I did not do it correctly). Anyone have encountered this problem before?


    Attached Files Attached Files

  2. #2
    Forum Expert CK76's Avatar
    Join Date
    ONT, Canada
    MS-Off Ver
    Office 365 ProPlus

    Re: Plotting a 3 variable (X,Y,Z) graph

    There are several ways to do it. Though I'm not sure exactly what end result you are looking for.

    1. 3 axis line plot. Basically you overlay 2nd graph on top of first and use shape grouping to make it into single plot.

    While it's not fancy as 3d chart, advantage is that it's easier to read values.

    2. 3d plot
    Basically you arrange data in to matrix (i.e mesh format)
    However, with this, you'll get visual misrepresentation, without some method to fill in the gaps (curve).

    You may find below article helpful.

    Alternately you can use free add-in like XonGrid to plot your graph. Rather than create mesh matrix manually.

    Other approach is to use add-in that allows you to leverage more robust data visualization library (python, R etc).
    Using tool such as xlWings.
    “Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something.”
    ― Robert A. Heinlein

  3. #3
    Forum Guru
    Join Date
    North America
    MS-Off Ver
    2002/XP and 2007

    Re: Plotting a 3 variable (X,Y,Z) graph

    Excel does not have good support for 3D scatter charts. In addition to CK76's suggestions:

    1) You might find this interesting: http://andypope.info/charts/3drotate.htm It's still a 2D scatter chart, but with appropriate formulas and lines, we give it the illusion of 3D.

    2) I often like to plot "contour" plots -- 2D scatter plots with multiple data series for different contours. Plot y vs x at different values/groups for z or z vs y at different values/groups for x or however you want.

    3) And, as CK 76 mentioned, you can also look outside Excel for this, since there are other charting engines that have built in support for 3D scatter charts.
    Quote Originally Posted by shg
    Mathematics is the native language of the natural world. Just trying to become literate.

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. plotting a graph with variable start date
    By Trebor777 in forum Excel General
    Replies: 3
    Last Post: 11-14-2016, 12:08 PM
  2. [SOLVED] Plotting a standard bar graph on the same axes as a stacked bar graph
    By Shearwater in forum Excel Charting & Pivots
    Replies: 4
    Last Post: 05-01-2014, 04:59 AM
  3. Need Help with plotting a graph
    By dbhushan in forum Excel Charting & Pivots
    Replies: 4
    Last Post: 05-15-2013, 10:29 PM
  4. [Solved!]Help with plotting Km on graph...
    By graymonkey44 in forum Excel General
    Replies: 2
    Last Post: 03-02-2012, 03:58 PM
  5. Replies: 1
    Last Post: 05-04-2011, 04:18 AM
  6. plotting a line graph on a bar graph
    By mufan in forum Excel Charting & Pivots
    Replies: 2
    Last Post: 07-02-2009, 03:29 PM
  7. Plotting a Graph
    By Mayank in forum Excel General
    Replies: 2
    Last Post: 06-09-2006, 03:15 PM

Tags for this Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Search Engine Friendly URLs by vBSEO 3.6.0 RC 1