MATLAB: Add text above grouped bars

barplotbarsMATLABvalues

Hi!

I found a code that adds the numerical values of my bars above the bars in my plot, but I want to add a %-sign after the values, to highlight that the values are measured in percentage.

y1 = [0.0 3.3; 4.8 7.7; 19.3 6.6; 49.4 35.2; 26.5 47.3];

hBar = bar(y1,1);

for k1 = 1:size(y1,2)

ctr(k1,:) = bsxfun(@plus, hBar(1).XData, hBar(k1).XOffset');

ydt(k1,:) = hBar(k1).YData;

text(ctr(k1,:), ydt(k1,:), sprintfc('%.1f', ydt(k1,:)), 'HorizontalAlignment','center', 'VerticalAlignment','bottom', 'FontSize',14, 'Color','black')

end

Is there any way to do this?

Thank you in advance.

Best Answer

'%%' is the escape sequence for percentage symbol as shown here.

sprintfc('%.1f %%', ydt(k1,:))

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MATLAB: How to display a value on bar

Try this (if you have R2014b or later):

y1 = [2 2 3; 2 5 6; 2 8 9; 2 11 12];
hBar = bar(y1,1);                                                   % Return ‘bar’ Handle
for k1 = 1:size(y1,2)
    ctr(k1,:) = bsxfun(@plus, hBar(1).XData, hBar(k1).XOffset');    % Note: ‘XOffset’ Is An Undocumented Feature, This Selects The ‘bar’ Centres
    ydt(k1,:) = hBar(k1).YData;                                     % Individual Bar Heights
    text(ctr(k1,:), ydt(k1,:), sprintfc('%.1f', ydt(k1,:)), 'HorizontalAlignment','center', 'VerticalAlignment','bottom', 'FontSize',8, 'Color','b')
end

the sprintfc function is undocumented. It is essentially the same as sprintf, and augmented to produce a cell array of outputs. This makes it very efficient in situations such as this, where the result is a cell array.

MATLAB: How to write Continue Long Statements on Multiple Lines

Use repmat to avoid manually typing all 160 of those ‘%q’ repeats!

Try this:

formatSpec = ['%f',repmat('%q',1,160), '%[^\n\r]'];

Best Answer

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MATLAB: How to display a value on bar

MATLAB: How to write Continue Long Statements on Multiple Lines

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