Simple Linear Interpolation using Interp1
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Hi all. I'm fairly new to Matlab and I'm just trying to interpolate.
I have a [1 12] time vector that represent 12 hours. I also have a temperature vector that only has 10 values because 2 of them are missing. I understand that the sizes must be equal to use interp1. This is what I have so far:
time = [1 2 3 4 5 6 7 8 9 10 11 12];
temp = [10 12 15 13 [] 16 16 18 [] 15 21 20];
points = [1 2 3 4 5 6 7 8 9 10 11 12];
y = interp1(time,temp,points,'linear')
The empty matrices are where I don't have available times. I'm trying to use all of this data to linearly interpolate temperatures for all entries in my points array.
Thanks so much :)
采纳的回答
Andrei Bobrov
2014-8-14
编辑：Andrei Bobrov
2014-8-14
time = [1 2 3 4 6 7 8 10 11 12];
temp = [10 12 15 13 16 16 18 15 21 20];
points = [1 2 3 4 5 6 7 8 9 10 11 12];
y = interp1(time,temp,points,'linear');
5 个评论
Michael
2014-8-14
Ammar Anayi
2021-10-14
Hello Sir, if I had the temperatures but not the time. What should i do, how would the code look like.
Thanks!
Leon
2022-1-4
That's a very neat solution. I wonder if you know how to display the slope and intercept values?
Gem
2022-11-19
May I have a question, is it possible to interpolate the data (NaN) if the x and y does have the same length in 3D plot.
Thank you !
Peter
2024-4-23
Thank you from 10 years later!
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