find values between constants in vector
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I have a vector freq_n where I want to find the indices corresponding to values between a and b.
freq_in-10*delta_f <= freq_n <= freq_in+10*delta_f
How would I go about doing this? The find() function seems to only allow one relational operator, unless I am doing something wrong? thanks!
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Sean de Wolski
2011-9-21
idx = X >= a & X <= b;
where X is your vector, a is the lower bound, b is the upper bound. This will be their logical values. If you want numerical indices:
find(idx)
更多回答（2 个）
Wayne King
2011-9-21
freq = 0:1:500;
[~,indices] = find(freq>20 & freq < 250);
freq(indices)
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2011-9-21
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