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Horizontal bar chart / Gantt Chart

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Hey guys I have a simple question,
I have a 5x 3 array with the 1st column representing the project number, 2nd column representing the start time and 3rd col representing the end time.
  • Now I just need to plot this in a Gantt Chart.
Heres the script:
clear all;
close all;
T = [1 randi([10 20])
2 randi([10 20])
3 randi([10 20])
4 randi([10 20])
5 randi([10 20])]
D = projectscheduling(T);
And here is the function:
Brief summary of this function.
Detailed explanation of this function.
function [time] = projectscheduling(T)
time = zeros(5, 3);
for i = 2:5
time(1 ,1) = 1;
time(1, 2) = 0;
time(1 , 3) = T(1, 2);
time(i , 1) = T(i , 1);
time(i, 2) = time(i-1, 3);
time(i, 3) = T(i , 2) + time(i, 2);
And here's a pic of what the finished plot should look like:

Accepted Answer

Jyotsna Talluri
Jyotsna Talluri on 2 Apr 2020
The vertical axis coordinates should represent project number and bar lengths of each group should be represented by vector of values . Generate these vector of values from your Matrix D as below
Positions=zeros(1,5); % vertical axis coordinates
plotLengths = zeros(5,2);
for i =1:5
Positions(1,i) = D(i,1);
plotLengths(i,1) = D(i,2);
plotLengths(i,2) = D(i,3)-D(i,2);
Draw the bars in the stacked style with the total length of bar of each group equals the sum of elements in the group
H = barh(Positions,plotLengths,'stacked');
Set the visibility of first plot handle of each group to off

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