Extracting values between certain range and storing it
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I have a 28X12 matrix of tempo values (bpm) recording from a tapping experiment. The rows represent number of stimuli (28) and columns represent number of test subjects (12). I want to have the most correct tempo for particular musical stimuli. But I am looking for a certain range of tempo values which I have taken as 10% which means if the first stimuli has the tempo 224 bpm. The lower limit will be 201 and upper limit is 246. I would then want to extract all the tempo values within the specified range for that particular stimuli.
tempo_drums_round = round(tempo_drums); %Rounding the values
tempoModedrums = mode(tempo_drums_round,2); %Most used value for tempo for drums
%To extract all the values between certain range
for t = 1:length(tempoModedrums)
t_low(t) = tempoModedrums(t)-tempoModedrums(t)/10;
t_low = t_low';
t_high(t) = tempoModedrums(t)+tempoModedrums(t)/10;
t_high = t_high';
t_range = [t_low t_high];
end
I am stuck after this!
2 Comments
Guillaume
on 27 Jun 2019
Note that your loop isn't needed. It's simply:
tempo_drums_round = round(tempo_drums); %Rounding the values
tempoModedrums = mode(tempo_drums_round,2); %Most used value for tempo for drums
t_low = tempoModedrums - tempoModedrums / 10;
t_high = tempoModedrums + tempoModedrums / 10;
t_range = [t_low, t_high];
which could be coded even more simply as:
tempo_drums_round = round(tempo_drums); %Rounding the values
tempoModedrums = mode(tempo_drums_round,2); %Most used value for tempo for drums
t_range = tempoModedrums + tempoModedrums ./ [-10, 10]; %subtract (1st column) and add (2nd column) tempoModedrums / 10 to tempoModedrums
Considering that in each row, you may have a different number of subjects within your band, what do you want as output? It can be a matrix, it could be a cell array.
Accepted Answer
Guillaume
on 27 Jun 2019
Ah, well if you just want the number of people within the band then:
tempo_drums_round = round(tempo_drums); %Rounding the values
tempoModedrums = mode(tempo_drums_round,2); %Most used value for tempo for drums
t_low = tempoModedrums - tempoModedrums / 10;
t_high = tempoModedrums + tempoModedrums / 10;
countinrange = sum(tempo_drums >= t_low & tempo_druns <= t_high, 2)
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