inserting values in between two successive values in an array

data=[-7.55;-7.62;-7.59;-7.75;-7.78;-7.69;-7.63;-7.69;-7.58;-7.95];
newdata=interp1(...
    1:numel(data),...     create x values
    data,...              treat the data as y values
    1:0.5:numel(data),... create the new x values to sample
    'linear'); %          force the use of a linear interpolation
disp(newdata)
   -7.5500   -7.5850   -7.6200   -7.6050   -7.5900   -7.6700   -7.7500   -7.7650   -7.7800   -7.7350   -7.6900   -7.6600   -7.6300   -7.6600   -7.6900   -7.6350   -7.5800   -7.7650   -7.9500

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Rik 2021-5-25

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What exactly do you mean by 'after the 10th value'? Do you want to extrapolate after the array you have? If you want that, you will have to find the pattern in your numbers.

plot(data)

I don't see any pattern. Can you predict what value should be at x=10.5?

Mohammed Yousuf 2021-5-25