# Calculate the area under histogram

125 ビュー (過去 30 日間)
Ali nouri 2020 年 5 月 7 日

Hi Guys
I am using the below code to get a histogram plot over differenet data.
I want to know, how can I calculate the area below the histogram, and if i want that all area shall be equal to 1, then how can I do it?
n = 50;
figure(3)
XEU100 = histogram(Delta_EU100,n);
hold on
XEU90 = histogram(Delta_EU90,n);
title('Mismatch distribution');
xlabel('Normalized mismatch power')
ylabel('P(\Delta)')

サインインしてコメントする。

### 採用された回答

Ameer Hamza 2020 年 5 月 7 日
You can find the area under the histogram by summing all heights and multiply by the bin width
x = rand(1000,1);
h = histogram(x);
area = sum(h.Values)*h.BinWidth;
To get a histogram with the total area equal to 1. You can specify normalization
x = rand(1000,1);
h = histogram(x, 'Normalization', 'pdf');

サインインしてコメントする。

### カテゴリ

Find more on Histograms in Help Center and File Exchange

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by