MATLAB: Error in ‘findpeaks’ im not sure what the issue is

Question

Code:

Y = readtable('lab1_section1_9hz000.xlsx','Range','E1:AJ180');

Y1 = table2array(Y);

Y2 = detrend(Y1);

for i=1:32

[pks,locs] = findpeaks(Y2(:,i));

meanWH(i) = mean(pks);

meanWL(i) = mean(diff(locs));

end

Error

>> Lab1_Wave_Sensor

'findpeaks' requires Signal Processing Toolbox.

Error in Lab1_Wave_Sensor (line 8)

[pks,locs] = findpeaks(Y2(:,i));

Answer 1

it believes that Signal Processing Toolbox is either not installed or not licensed.