How to apply window function in MATLAB

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Yian Chen
Yian Chen on 24 Nov 2021
Commented: dpb on 28 Nov 2021
I wanna to apply a window function to my FT result. I have two questions, the first one is how to add the window function code, like w = window(blackman,L)? But it doesn't work. Another one is how to determine which window to choose? Here is my plots.
dpb on 28 Nov 2021
That doesn't indicate there is any real repetitive patter in the signal -- how did you get the above? As asked before, Show us the actual code used, we can't really tell anything at all from just the plot.
Most temperatures are slow-responding to external stimuli so you may not have collected nearly enough data to uncover any pattern.

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