plotting histogram of 3d data.

I want to plot catagorical histogram of following 3d data.

MATRIX 1

Y 48 98 111

Y 33 73 97

Y 65 97 124

Y 73 93 128

MATRIX 2

N 21 74 113

N 40 70 121

N 41 68 107

N 41 68 107

ON A single histogram

kindly help

Answer 1

[Naga]

Hello Farhan

To create a categorical histogram of your 3D data in MATLAB, follow these steps:

1. Organize the Data: Merge the data from both matrices into a single array, associating each row with its respective category.
2. Plot the Histogram: Use MATLAB's 'histogram' function to visualize the data.

% Data from Matrix 1
data1 = [48, 98, 111; 33, 73, 97; 65, 97, 124; 73, 93, 128];
category1 = repmat({'Y'}, size(data1, 1), 1);

% Data from Matrix 2
data2 = [21, 74, 113; 40, 70, 121; 41, 68, 107; 41, 68, 107];
category2 = repmat({'N'}, size(data2, 1), 1);

% Combine data and categories
data = [data1; data2];
categories = [category1; category2];

% Step 2: Plot the Histogram
% Flatten the data and categories for histogram plotting
flattenedData = data(:);
flattenedCategories = repmat(categories, 1, size(data, 2));
flattenedCategories = flattenedCategories(:);

% Create a categorical array
categoricalData = categorical(flattenedCategories);

% Plot the histogram
figure;
histogram(categoricalData, 'DisplayStyle', 'bar', 'FaceColor', 'b');
xlabel('Category');
ylabel('Frequency');
title('Categorical Histogram of 3D Data');

This script will generate a categorical histogram where the categories 'Y' and 'N' appear on the x-axis, and the frequency of each category is displayed on the y-axis.