I'm using LTspice IV (4.23I) and I am using the .step command to vary the capacitance of a capacitor, so that I can see multiple waveforms for a single probe.

If there is only one probe, then the stepping values have different colors (see below).

Ltspice single probe different step colors

My issue is that if I add another probe, the stepped waveform(s) generated from a single probe become the same color. (See blue waveforms below)

Ltspice single probe same step colors

How can I keep them as different colors, while also keeping multiple plobes on the same plot?

Circuit for reference:

ltspice circuit

  • 4
    \$\begingroup\$ I have given up looking for a solution, I think you can't. Maybe the new XVII has something, but I doubt it. \$\endgroup\$
    – PlasmaHH
    Commented Dec 1, 2016 at 15:26
  • 3
    \$\begingroup\$ I have been using LTSpice almost daily for 4+ years and don't know of any way around this. Just to make sure - you know you can create multiple panes in one plot window, right? If there is one trace per pane, stepped traces will stay different colors. This is what I do to produce a plot with many traces over a stepped parameter. \$\endgroup\$
    – user49628
    Commented Dec 1, 2016 at 17:05
  • 1
    \$\begingroup\$ @user49628 Yeah I have been putting them in different panes, I was hoping for a trick or hack or something so they can be overlayed on each other. \$\endgroup\$
    – Bort
    Commented Dec 1, 2016 at 17:56
  • 2
    \$\begingroup\$ I'm voting to close this question because there is no possible way to do what the user is asking. \$\endgroup\$
    – Voltage Spike
    Commented Dec 28, 2016 at 20:44
  • 5
    \$\begingroup\$ @laptop2d That doesn't make the question off-topic. It just makes the answer very simple: "you can't". If you think that's correct, write it as an answer. \$\endgroup\$
    – user39382
    Commented Dec 31, 2016 at 5:45

1 Answer 1


Unfortunately, as mentioned in the comments, there is no way to do this in LTSpice. I recommend plotting the stepped waveform in one plot plane and then plotting the second waveform in a second plot plane. This way you can still see the relationship between the two waveforms while having the stepped waveforms be various colors.


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