Hot to plot maximum y value for group by each x
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I have y axis = Alumn [data type double] , x axis = Sheet [data type datetime]
I want to plot grap maximum y value for group by each x
The information looks like this :
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/353321/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/353324/image.png)
1 个评论
the cyclist
2020-8-30
Can you upload a sample of the data, instead of an image of the data (which is impossible to use).
回答(1 个)
Cris LaPierre
2020-8-30
maxTbl = groupsummary(dataTbl,"Alumn","max","Sheet");
Then plot the summary data
plot(maxTbl.Alumn,maxTbl.max_Sheet)
Just a caution - this code is untested.
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