How to plot a grouped bar chart?

I am trying to stack five comparitive features together for each of the 4 different scenarios along the x axis and the Y axis has year from 2025 to 2050 with increament of 5 years. Each feature should have a different colour and the bar height should be a representative of the cost involved for each feature . How can I do this?

Answer 1

[Matt J]

https://www.mathworks.com/help/matlab/ref/bar.html#bthxce9

[Parth]

Thanks a ton.

[Parth]

How should I introduce hatch patterns for each bar in side different scenarios to depict the percentage of work achieved as compared to the targets of 2050? Lets say 0-10 % has a different hatch pattern, 10-20 has a different one and then the code uses the logic to create hatch inside the bars with respect to 2050 goals. Also I will have to add another legend for the percentages.

% Scenario names
x = categorical({'The Hydro-Nucleo Synthesis','The Hydrogen Flourishment','The Technological Gridlock','Nuclear on the Horizon'});
% Features for each scenario
Environmental_Protection = [2035 2038 2045 2033];
Nuclear_Security = [2035 2032 2030 2037];
Safety_And_Energy_Security = [2033 2040 2050 2036];
Fuel_Poverty = [2032 2037 2045 2032];
Waste_Handling_Efficiency = [2036 2031 2038 2039];
% Combine features into a matrix
y = [Environmental_Protection; Nuclear_Security; Safety_And_Energy_Security; Fuel_Poverty; Waste_Handling_Efficiency];
% Plotting
bar(x, y)
% Y-axis limits
ylim([2025 2050])
% Adding legend
legend({'Environmental Protection','Nuclear Security','Safety and Energy Security','Fuel Poverty','Wastes'})
% Adding axis labels
xlabel('Scenarios')
ylabel('Years')
title('Scenario Analysis') 

[Matt J]

You will need some File Exchange packages for that, in particular hatchfill2 and legendflex. This answer demonstrates their use for rendering hatched bar plots:

https://www.mathworks.com/matlabcentral/answers/478956-getting-hatchfill-to-properly-display-a-patch-legend#answer_920769

[Parth]

Thanks . But its giving a few errors!

[Parth]

% Scenario names
x = categorical({'The Hydro-Nucleo Synthesis','The Hydrogen Flourishment','The Technological Gridlock','Nuclear on the Horizon'});

% Features for each scenario
Environmental_Protection = [2035 2038 2045 2033];
Nuclear_Security = [2035 2032 2030 2037];
Safety_And_Energy_Security = [2033 2040 2050 2036];
Fuel_Poverty = [2032 2037 2045 2032];
Waste_Handling_Efficiency = [2036 2031 2038 2039];

% Calculate percentages
total_years = 2050 - 2025 + 1; % Total years from 2025 to 2050
Environmental_Protection_Percentage = (Environmental_Protection - 2025) / total_years * 100;
Nuclear_Security_Percentage = (Nuclear_Security - 2025) / total_years * 100;
Safety_And_Energy_Security_Percentage = (Safety_And_Energy_Security - 2025) / total_years * 100;
Fuel_Poverty_Percentage = (Fuel_Poverty - 2025) / total_years * 100;
Waste_Handling_Efficiency_Percentage = (Waste_Handling_Efficiency - 2025) / total_years * 100;

% Combine percentages into a matrix
y = [Environmental_Protection_Percentage; Nuclear_Security_Percentage; Safety_And_Energy_Security_Percentage; Fuel_Poverty_Percentage; Waste_Handling_Efficiency_Percentage];

% Plotting
bar(x, y)

% Adding hatch patterns
hFig = gcf;
hAx = gca;
for i = 1:numel(hAx.Children)
    hatchfill(hAx.Children(i), 'HatchStyle', '/', 'HatchAngle', 45, 'HatchDensity', 20, 'HatchColor', hAx.Children(i).FaceColor);
end

% Adding legend for patterns
legend_patterns = legend({'Pattern Range: 0-20%', 'Pattern Range: 20-40%', 'Pattern Range: 40-60%', 'Pattern Range: 60-80%', 'Pattern Range: 80-100%'});
title(legend_patterns, 'Percentage Range');

% Adding legend for scenarios
legend_scenarios = legend({'Environmental Protection','Nuclear Security','Safety and Energy Security','Fuel Poverty','Wastes'});
title(legend_scenarios, 'Scenarios');

% Adding axis labels
xlabel('Scenarios')
ylabel('Years')
title('Scenario Analysis')

I tried doing this way. Didnt work gave a few errors with function

[Matt J]

Thanks . But its giving a few errors!

You don't appear to have posted the errors.

[Parth]

Error using hatchfill

Too many input arguments.

Error in Groupedbarchart (line 29)

hatchfill(hAx.Children(i), 'HatchStyle', '/', 'HatchAngle', 45, 'HatchDensity', 20, 'HatchColor', hAx.Children(i).FaceColor);

These are the errors. ANd I am not able to see years on the Y axis but rather percentages.

[Matt J]

hatchill2() not hatchfill()

Hb=bar(y');

% Adding legend for patterns
[legend_patterns,hpleg] = legendflex({'Pattern Range: 0-20%', 'Pattern Range: 20-40%', 'Pattern Range: 40-60%',...
                              'Pattern Range: 60-80%', 'Pattern Range: 80-100%'},'title','Percentage Range',...
                              'anchor', {'nw','nw'} ,'buffer',[0,-5]);

% Adding legend for scenarios
[legend_scenarios,hsleg] = legendflex({'Environmental Protection','Nuclear Security','Safety and Energy Security',...
                               'Fuel Poverty','Wastes'},'title','Scenarios','anchor', {'n','n'},'buffer',[-30,-5]);

% Adding axis labels
xlabel('Scenarios')
ylabel('Years')
title('Scenario Analysis')

% Adding hatch patterns
hpleg=findobj(hpleg,'type','Patch');
hsleg=findobj(hsleg,'type','Patch');
for i = 1:numel(Hb)
     
  hatchfill2(Hb(i), 'cross', 'HatchAngle', 45, 'HatchDensity', 20,'HatchColor','k');
  hatchfill2(hpleg(i), 'cross', 'HatchAngle', 45, 'HatchDensity', 20,'HatchColor','k');
  hatchfill2(hsleg(i), 'cross', 'HatchAngle', 45, 'HatchDensity', 20,'HatchColor','k');

end

xticklabels(x)

[Parth]

Hello Sir. Thanks a ton. This is more than perfect. Thanks for the help.

[Matt J]

You're welcome, but please Accept-click the answer to indicate that it worked.