Extract a range of frequencies from a vector/array

Hello,

I hope you are in good health.

I am trying to select a range of frequencies from the given data set.

load phaseNoise.mat
plot(fnew,pnew)

new_value_from_fnew = fnew(fnew = 10e+009 | fnew <= 30e+009);

Unable to use a value of type string as an index.

However, I get an error when I try to set the initial and final value saying that 'Unable to use a value of type string as an index.'. I have tried changing the data type as well but didn't work either.

Basically, I want to only select the frequencies from 10GHz to 30GHz and discard the rest of the values so I can display the graph from 10GHz to 30GHz and perform further analysis on the given range only.

Any help will be appreciated.

BR.

Answer 1

[KSSV]

new_value_from_fnew = fnew(fnew == 10e+009 | fnew > 30e+009);  % <--- replace = with ==

[Sibghat]

@KSSV wow ...

Thank you.

Can I also ask how to access the Y values for the given range?