How do you convert DateTime Strings into Date and Time values (seconds or month,day,time) Trying to plot wind speed by time

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Cam Pine 2022-3-14

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评论： Peter Perkins 2022-3-15

Screen Shot 2022-03-14 at 12.59.45 PM.png

I am trying to plot wind speed (y-axis) by time (x-axis), however, the file that I was given has the time values stored as datetime strings and I am trying to convert these to time in seconds or the format of mm,dd, HH:MM:SS. Please help me!

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回答（1 个）

Peter Perkins 2022-3-14

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Cam, what problem are you having. Your screenshot suggests you have a vector of datetimes. Use that in plot, or whatever charting command you are using. If you want the tick labels to have some particular form, change the time1.Format property. It looks like you might want that to be "MM,dd HH:mm:ss". Or maybe MMM.

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Cam Pine 2022-3-14

Screen Shot 2022-03-14 at 12.59.45 PM.png

And then would I be able to just use plot(wavg) or would I use plot(wavg, time1).

Peter Perkins 2022-3-15

I think you want to look at the doc for plot. wavg doesn't even appear in your screen shots, so I have no idea what it is, but if you want to make a plot against time, then time should be the first input to plot.

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