%% Overlay Bar Graphs
% This example shows how to overlay two bar graphs and specify the bar
% colors and widths. Then, it shows how to add a legend, display the grid
% lines, and specify the tick labels.

% Copyright 2015 The MathWorks, Inc.


%%
% Create a bar graph. Set the bar width to 0.5 so that the bars use 50%
% of the available space. Specify the bar color by setting the
% |FaceColor| property to an RGB color value.

x = [1 2 3 4 5];
temp_high = [37 39 46 56 67]; 
w1 = 0.5; 
bar(x,temp_high,w1,'FaceColor',[0.2 0.2 0.5])

%%
% Plot a second bar graph over the first bar graph. Use the |hold| function
% to retain the first graph. Set the bar width to .25 so that the bars use
% 25% of the available space. Specify a different RGB color value for the
% bar color.

temp_low = [22 24 32 41 50];
w2 = .25;
hold on
bar(x,temp_low,w2,'FaceColor',[0 0.7 0.7])
hold off


%% 
% Add grid lines, a _y_-axis label, and a legend in the upper left corner.
% Specify the legend descriptions in the order that you create the graphs.
grid on
ylabel('Temperature (\circF)')
legend({'Average High','Average Low'},'Location','northwest') 


%% 
% Specify the _x_-axis tick labels by setting the |XTick| and |XTickLabel|
% properties of the axes object. The |XTick| property specifies tick value
% locations along the _x_-axis. The |XTickLabel| property specifies the
% text to use at each tick value. Rotate the labels using the
% |XTickLabelRotation| property. Starting in R2014b, you can use dot
% notation to set properties. If you are using an earlier release, use the
% <docid:matlab_ref.f67-432995> instead.

ax = gca;
ax.XTick = [1 2 3 4 5]; 
ax.XTickLabels = {'January','Februrary','March','April','May'};
ax.XTickLabelRotation = 45;

