I can use the Show function to combine multiple plots, so I know how to plot data points and a calculated fit line in 2D, but now I want to do the same in 3 dimensions. I can plot the data points just fine in 3D, but I don't know how to draw a straight line with a know equation in 3D.(adsbygoogle = window.adsbygoogle || []).push({});

My equation is of the form z=beta0 + beta1 x + beta2 y, and Plot3D just gives a blank output with that equation as input (I think because it expects to plot a surface a not a line). Thanks in advanced for any help!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# [Mathematica]Plotting 3D line with data point

Can you offer guidance or do you also need help?

**Physics Forums | Science Articles, Homework Help, Discussion**