Representing certain range of X axis using a single tick in MATLAB plot

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Shubhrajit Bhattacharjee 2020-3-29

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https://ww2.mathworks.cn/matlabcentral/answers/513813-representing-certain-range-of-x-axis-using-a-single-tick-in-matlab-plot

评论： Shubhrajit Bhattacharjee 2020-3-29

采纳的回答： Adam Danz

I have the following data:

X = [1,2,3,4,5,6,7];

Y = [10,10,10,10,20,30,40];

bar(X,Y)

For X axis value until 4, the Y axis value is the same which is 10. I want to represent the barplot where the first X axis tick will show 1:4 and Y axis value will show 10. For the other X axis values from 5 to 7 will be represented each using a single tick as usual, for example X axis will be 1:4 5 6 7, so 4 ticks in total in X axis. Please let me know how to do that.

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Answer 1

Adam Danz 2020-3-29

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https://ww2.mathworks.cn/matlabcentral/answers/513813-representing-certain-range-of-x-axis-using-a-single-tick-in-matlab-plot#answer_422719

编辑：Adam Danz 2020-3-29

在 MATLAB Online 中打开

Two options

X = [1,2,3,4,5,6,7];
Y = [10,10,10,10,20,30,40];
xIdx = [1,5,6,7]; 
bar(X(xIdx), Y(xIdx))
ax = gca(); 
ax.XTick = xIdx; 
ax.XTickLabel{1} = '1:4';

xIdx = [1,5,6,7]; 
bar(Y(xIdx))
ax = gca(); 
ax.XTick = 1:numel(xIdx); 
ax.XTickLabel = {'1:4','5','6','7'};

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Adam Danz 2020-3-29

编辑：Adam Danz 2020-3-29

Also see the width variable in bar() if you'd like the 1:4 bar to spread out across all 4 x-values in the first option, although you'd need to either plot it separately or use a grouping variable.

Shubhrajit Bhattacharjee 2020-3-29