How do I plot two distributions on top of each other?

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studentmatlaber
studentmatlaber on 2 Oct 2021
Commented: Star Strider on 4 Oct 2021
I fit this histogram with the distribution fitter app. This fit is called the "t position scale" in practice. On top of this histogram, I want to plot a distribution with a mean of 0 and a variance of 1. I would be very grateful if you could help me figure out how to do this.

Answers (2)

Arthur Morais
Arthur Morais on 2 Oct 2021
You can write the plot command with the two variables that you have.
plot(data,density,data,distribution)
You can change the type of line adding markers.
plot(data,density,'b--',data,distribution,'k:')
If you don't use any markars, matlab chages only the color the of line.
  1 Comment
studentmatlaber
studentmatlaber on 2 Oct 2021
actually, secondly, my chart view does not match the normal distribution. I need to make the Y axes at the same time.

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Star Strider
Star Strider on 2 Oct 2021
To plot an additional distribution on the same axes, use the hold function. For the distribution itself, use the pdf function with a vector of ‘x’ values to create the data to plot. Several distributions could be characterised by those parameters, so choose the one you want.
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  6 Comments
Star Strider
Star Strider on 4 Oct 2021
My pleasure!
To plot the requested distribution,. it will be necessary to use the first curve. The data and fitted distribution will then essentially be a thin vertical red line, however there is no way to avoid that if the objective is to plot both in a single axes object.
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