compare two vectors then insert missing element
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i have a matrix :
A=[ 1.000 0.5860 0.01403
2.500 0.7395 0.01277
3.500 0.8450 0.01146
4.000 0.8967 0.01173
4.500 0.9476 0.01215
5.000 0.9962 0.01280
6.000 1.0973 0.01367
6.500 1.1398 0.01457
7.000 1.1889 0.01515
8.000 1.2574 0.01915
8.500 1.2816 0.02234
9.500 1.3300 0.02731
10.500 1.3267 0.03649 ]
for the first column let say its
B=[ 1.000
1.500
2.000
2.500
3.500
4.000
4.500
5.000
5.500
6.000
6.500
7.000
7.500
8.000
8.500
9.000
9.500
10.000
10.500]
i want to compare A(:1) with b then insert missing rows to make A(:,1) = b , then perform interpolation for A(:,2) and A(:,3) new rows
thanks
1 Kommentar
Chunru
am 29 Apr. 2021
Bq = sort(union(B, A(:,1))); % the query points are from B and A(:,1)
C = interp1(A(:, 1), A(:, 2:end), Bq); % Interpolation
C = [Bq C]; % The result
Antworten (1)
Stephen23
am 29 Apr. 2021
Simpler:
A=[ 1.000 0.5860 0.01403
2.500 0.7395 0.01277
3.500 0.8450 0.01146
4.000 0.8967 0.01173
4.500 0.9476 0.01215
5.000 0.9962 0.01280
6.000 1.0973 0.01367
6.500 1.1398 0.01457
7.000 1.1889 0.01515
8.000 1.2574 0.01915
8.500 1.2816 0.02234
9.500 1.3300 0.02731
10.500 1.3267 0.03649 ];
B = 1:0.5:10.5;
C = interp1(A(:,1),A,B(:))
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