Plot data to a certain date with array

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PureFleet 2021-11-29

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https://ww2.mathworks.cn/matlabcentral/answers/1598499-plot-data-to-a-certain-date-with-array

评论： Peter Perkins 2021-12-2

Screenshot 2021-11-29 134815.png

Sorry I am new to coding! Apologies if this is a dumb question.

I a years worth of data and an array saying 1 when it is january and 0 when its not. I need to plot data only when its january, but im unsure how to work in the array into my plot.

Thanks!

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回答（1 个）

Peter Perkins 2021-11-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1598499-plot-data-to-a-certain-date-with-array#answer_843059

在 MATLAB Online 中打开

Give this a try:

>> tt = timetable((1:365)','RowTimes',datetime(2021,1,1:365))
tt =
  365×1 timetable
       Time        Var1
    ___________    ____
    01-Jan-2021      1 
    02-Jan-2021      2 
    03-Jan-2021      3 
[snip]
    29-Dec-2021    363 
    30-Dec-2021    364 
    31-Dec-2021    365 
>> jan = tt.Time.Month == 1;
>> plot(tt.Time(jan),tt.Var1(jan))