Store a values in to a table at each iteration of loop

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Rajeev Kumar
Rajeev Kumar 2022-10-20
评论： VBBV 2022-10-20
Create a table to store the computed values with each itreation of a loop.
With reference to the given code, I want to store the labeled values of f1,f2,f3 in to a table with each iteration of loop
clear all
close all
v1=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
Fs=12000; %sampling frequency
T=1/Fs; %sampling period
L=length(v1); %Lenght of the signal
t=((0:L-1)*T)';
requiredLength=5;
requiredArray3 = [];
frequencyArray = [];
freq = ((1:5)*Fs/5);
%loop
for n = v1
requiredArray3 = [requiredArray3, n];
if numel(requiredArray3) == requiredLength
fastFourier = fft(requiredArray3);
A = fastFourier(:,1:3);
B = freq(:,1:3);
f1 = sum(B.*A)/sum(A);
f2 = sum(requiredLength - f1)/requiredLength;
f3 = sum(sqrt(B-f1).*A)/requiredLength.*sqrt(f2);
requiredArray3 = [];
end
end

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回答（1 个）

VBBV
VBBV 2022-10-20
Ran in:
clear all
close all
v1=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
Fs=12000; %sampling frequency
T=1/Fs; %sampling period
L=length(v1); %Lenght of the signal
t=((0:L-1)*T)';
requiredLength=5;
requiredArray3 = [];
frequencyArray = [];
freq = ((1:5)*Fs/5);
%loop
for n = 1:length(v1)
requiredArray3 = [requiredArray3, n];
if numel(requiredArray3) == requiredLength
fastFourier = fft(requiredArray3);
A = fastFourier(:,1:3);
B = freq(:,1:3);
f1(n) = sum(B.*A)/sum(A);
f2(n) = sum(requiredLength - f1(n))/requiredLength;
f3(n) = sum(sqrt(B-f1(n)).*A)/requiredLength.*sqrt(f2(n));
requiredArray3 = [];
end
end
f1
f1 =
1.0e+03 * 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 1.3136 + 1.6778i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 1.9348 + 0.4039i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 2.1158 + 0.2228i
f2
f2 =
1.0e+02 * 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -2.6172 - 3.3556i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -3.8596 - 0.8078i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -4.2216 - 0.4455i
f3
f3 =
1.0e+03 * 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.5912 - 1.0897i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.0879 - 2.5229i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.4598 - 3.6071i
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VBBV
VBBV 2022-10-20
Ran in:
clear all
close all
v1=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];
Fs=12000; %sampling frequency
T=1/Fs; %sampling period
L=length(v1); %Lenght of the signal
t=((0:L-1)*T)';
requiredLength=5;
requiredArray3 = [];
frequencyArray = [];
freq = ((1:5)*Fs/5);
%loop
for n = 1:length(v1)
requiredArray3 = [requiredArray3, n];
if numel(requiredArray3) == requiredLength
fastFourier = fft(requiredArray3);
A = fastFourier(:,1:3);
B = freq(:,1:3);
f1(n) = sum(B.*A)/sum(A);
f2(n) = sum(requiredLength - f1(n))/requiredLength;
f3(n) = sum(sqrt(B-f1(n)).*A)/requiredLength.*sqrt(f2(n));
requiredArray3 = [];
end
end
T = table(abs(f1).',abs(f2).',abs(f3).','VariableNames',{'f1','f2','f3'})
T = 15×3 table
f1 f2 f3 ______ ______ ______ 0 0 0 0 0 0 0 0 0 0 0 0 2130.9 425.56 1239.8 0 0 0 0 0 0 0 0 0 0 0 0 1976.5 394.32 2524.4 0 0 0 0 0 0 0 0 0 0 0 0 2127.5 424.5 3636.3

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