What equivalent MATLAB commands plots PDF of data like 'hist' command plots histogram of data.

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What command does the ploting of the PDF of a data in similar way as 'hist' command plots the histogram? I have a set of data from 1 to 500. My data ranges between -2 and 2. I want to plot the pdf such that the x-axis contains my data (which is -2 to 2 and not 1 to 500 ) while the y-axis is the PDF. When done, this should look similiar to the the result obtained in the 'hist' command.
NOTE: I do not want the result of the 'hist' command and the pdf on the same graph.

Accepted Answer

Star Strider
Star Strider on 12 Sep 2021
See if the histfit function does what you want.
Star Strider
Star Strider on 12 Sep 2021
As always, my pleasure!
Correct. There is no one command that will estimate the parameters and plot the distribution, at least that does it in the way you want. The handle of histfit has two components, the first being the handle to the bar object and the second being the handle to the line object, so in that sense, it is close. However it will not plot it exactly as you want, with the limits you require, so to get those requires the approach I use in my previous Comment.

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More Answers (1)

Ive J
Ive J on 12 Sep 2021
Edited: Ive J on 12 Sep 2021
Something like this should work:
data = normrnd(10,1,100,1);
pd = fitdist(data, 'Normal');
x_values = 5:0.1:15;
y_values = pdf(pd, x_values);
plot(x_values, y_values, 'LineWidth', 2)

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