How to overlay a curve over histogram?

조회 수: 124(최근 30일)
Chiara Petrillo
Chiara Petrillo 2017년 4월 26일
편집: Andrew Newell 2017년 4월 26일
Hi There,
New to Matlab so sorry if the question is simple!
I have plotted a histogram with the following code:
data = csvread('testformatlab.csv')
col1 = data(:,8); %all rows in column 1
col2 = data(:,14);
X = (col1)./(col2);
histogram(X);
*I would like to overlay a curve to the histogram, similar to the red one in the attached image. My current histogram is shown in the blue image.
Thankyou!!!

답변(1개)

Andrew Newell
Andrew Newell 2017년 4월 26일
편집: Andrew Newell 2017년 4월 26일
If you already have the curve, then just type hold on and plot it. An example:
ydata = randn(1000,1);
hist(ydata)
hold on
x = min(ydata):0.1:max(ydata);
y = 500*normpdf(x);
plot(x,y,'r')

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