Z must be a matrix, not a scalar or vector

3 次查看（过去 30 天）
Alex Valero Mora
Alex Valero Mora 2018-9-14
评论： Walter Roberson 2018-9-14
Hi guys
I need a 3D graphic for those 3 variables in specific. pitch, roll and Iest have the same size in this case columns of 54 values. I would appreciate if you can help me thank you very much
function[] = Stability (pitch, roll, Iest)
% pitch, roll and Iest (Data from WorkSpace)
[X,Y]= meshgrid(pitch,roll);
figure
subplot (2,2,1);
surf(X,Y,Iest);
axis([-50 50 -50 50 -0.2 1]);
ylabel ('Roll (°)');
xlabel ('Pitch (°)');
zlabel ('I. Estabilidad');
title ('Stability indexes');
end
% ERROR: "Z must be a matrix, not a scalar or vector"
  5 个评论
显示 3更早的评论
Alex Valero Mora
Alex Valero Mora 2018-9-14
编辑：Walter Roberson 2018-9-14
Pitch 0
0
-10
0
10
10
-10
-10
0
0
-10
0
10
10
-10
0
0
-10
0
10
10
0
0
-10
0
10
10
0
0
-10
0
10
10
-10
-10
0
0
-10
0
10
10
-10
0
0
-10
0
10
10
0
0
-10
0
10
10
roll 0
-10
0
10
0
10
-10
10
0
-10
0
10
0
10
10
0
-10
0
10
0
10
0
-10
0
10
0
10
0
-10
0
10
0
10
-10
10
0
-10
0
10
0
10
10
0
-10
0
10
0
10
0
-10
0
10
0
10
Iest 0,989942340654644
0,802178238564791
0,796775799972624
0,803653845064710
0,821687183044870
0,791442057791294
0,777586416644017
0,782758864192040
0,774388293541222
0,552271140648203
0,555229986672985
0,782421186962462
0,760363307512461
0,906406097080077
0,546731674721163
0,583107483466789
0,569868655807287
0,323771406349666
0,575832238546995
0,723197675679337
0,716029101100372
0,748249261674753
0,784435878302803
0,563574908179280
0,553740850165316
0,735360868434881
0,544624923646681
0,419146617486797
0,419146617486797
0,419146617486797
0,419146617486797
0,538115608682760
0,523437658231029
0,419146617486797
0,419146617486797
0,575225929723435
0,576482226716369
0,361019236952593
0,419146617486797
0,554151574670287
0,419146617486797
0,352206741699065
0,773117436982731
0,592747054360200
0,570834362796000
0,594221698267574
0,631551981811119
0,581999337831112
0,585740340470783
0,419146617486797
0,354475826899071
0,575477558982328
0,575818380462714
0,715382090512770
it's all the data, all 54 x 1

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采纳的回答

madhan ravi
madhan ravi 2018-9-14
编辑：madhan ravi 2018-9-14
If pitch has (1X54) values and roll has the same values as pitch then Iest should have (54X54) values as a matrix.
pitch
roll
Iest=repmat(Iest,1,54)
function[] = Stability (pitch, roll, Iest)
% pitch, roll and Iest (Data from WorkSpace)
[X,Y]= meshgrid(pitch,roll);
figure
subplot (2,2,1);
surf(X,Y,Iest);
axis([-50 50 -50 50 -0.2 1]);
ylabel ('Roll (°)');
xlabel ('Pitch (°)');
zlabel ('I. Estabilidad');
title ('Stability indexes');
end
  10 个评论
显示 8更早的评论
Stephen23
Stephen23 2018-9-14
@Alex Valero Mora: this "answer" does not actually deal with your scattered data. You should accept the answer that actually solves your problem, not just the first answer that comes along.
Alex Valero Mora
Alex Valero Mora 2018-9-14
thanks for the suggestion I am new here and I am adapting to the methodology.

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更多回答（1 个）

Walter Roberson
Walter Roberson 2018-9-14
function[] = Stability (pitch, roll, Iest)
pv = linspace(-50, 50);
rv = linspace(-50, 50);
Z = griddata(pitch, roll, Iest, pv.', rv);
surf(pv, rv, Z, 'edgecolor', 'none');
axis([-50 50 -50 50 -0.2 1]);
ylabel ('Roll (°)');
xlabel ('Pitch (°)');
zlabel ('I. Estabilidad');
title ('Stability indexes');
end
  1 个评论
Walter Roberson
Walter Roberson 2018-9-14
Pitch = [
0
0
-10
0
10
10
-10
-10
0
0
-10
0
10
10
-10
0
0
-10
0
10
10
0
0
-10
0
10
10
0
0
-10
0
10
10
-10
-10
0
0
-10
0
10
10
-10
0
0
-10
0
10
10
0
0
-10
0
10
10
];
roll = [
0
-10
0
10
0
10
-10
10
0
-10
0
10
0
10
10
0
-10
0
10
0
10
0
-10
0
10
0
10
0
-10
0
10
0
10
-10
10
0
-10
0
10
0
10
10
0
-10
0
10
0
10
0
-10
0
10
0
10
];
Iest = [
0.989942340654644
0.802178238564791
0.796775799972624
0.803653845064710
0.821687183044870
0.791442057791294
0.777586416644017
0.782758864192040
0.774388293541222
0.552271140648203
0.555229986672985
0.782421186962462
0.760363307512461
0.906406097080077
0.546731674721163
0.583107483466789
0.569868655807287
0.323771406349666
0.575832238546995
0.723197675679337
0.716029101100372
0.748249261674753
0.784435878302803
0.563574908179280
0.553740850165316
0.735360868434881
0.544624923646681
0.419146617486797
0.419146617486797
0.419146617486797
0.419146617486797
0.538115608682760
0.523437658231029
0.419146617486797
0.419146617486797
0.575225929723435
0.576482226716369
0.361019236952593
0.419146617486797
0.554151574670287
0.419146617486797
0.352206741699065
0.773117436982731
0.592747054360200
0.570834362796000
0.594221698267574
0.631551981811119
0.581999337831112
0.585740340470783
0.419146617486797
0.354475826899071
0.575477558982328
0.575818380462714
0.715382090512770
];
Stability(Pitch, roll, Iest)

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