set y-axis to strings on plot

Question

Toke Søltoft 2014-7-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/143174-set-y-axis-to-strings-on-plot

回答： Rodney Pratt 2019-3-28

I have these values:

 x_values = [-0.6085   -0.6261   -0.6372]
 y_values = [39306       39383       39460]
 y_labels = 
 10:55:06
 10:56:23
 10:57:40 (strings)

Then I plot by:

plot(x_values,y_values)

Now, I want to change the y-axis labels with the strings y_labels. I do this by:

set(gca, 'YTickLabel', time_label);

The problem is that before I do this, YTickLabel consists of 9 values:

 get(gca,'YTickLabel')=
93 
932
934
936
938
94 
942
944
946

and after it is of cause only the three I have in y_labels. But in the plot they are repeated 3 times:

Anyobe know how I fix so I only have these three labels on the y-axis, so they fit where the values are? Also I have to make sure that the distance between the labels are fitting the distance between the real values.

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Answer 1

Azzi Abdelmalek 2014-7-24

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/143174-set-y-axis-to-strings-on-plot#answer_146260

在 MATLAB Online 中打开

x_values = [-0.6085   -0.6261   -0.6372]
y_values = [39306       39383       39460]
y_labels ={'10:55:06' '10:56:23' '10:57:40'}
plot(x_values,y_values)
set(gca, 'Ytick',y_values,'YTickLabel',y_labels);