cell contents assignment to a non-cell array object

clc;
clear all;

close all;
%disp('******************* LMI *******************')
%warning('off','YALMIP:strict') 
global r
yalmip('clear');

r=2;
c1=1;
C=[c1 0 0 0 0 0;
0 c1 0 0 0 0;
0 0 c1 0 0 0;
0 0 0 c1 0 0;
0 0 0 0 c1 0;
0 0 0 0 0 c1];

A{1}=[-0.01 0 0;0 -.05 0;1 .01 0];

A{2}=[0 .01 -0.1;0 0 -1;0 .02 .1];

B{1}=[0;-.02;.01];
B{2}=[0;-.02;.01];
D{1}=[0.01;.002;.001];

D{2}=[-.01;.02;.04];

E{1}=[0 -2 0;2 0 0;1 -.2 0];

E{2}=[0 -1 1;.1 -1 0;1 -1 0];

C{1}=[0 .1 0];  

C{2}=[1 0 .10];
K{1}=[.001 .3 0];

K{2}=[-2 -.03 1];

M{1}=0.01;

M{2}=1.5;

zer=[0 0 0;0 0 0;0 0 0];

zer1=[0;0;0];

L=[1 2 1];

%TildA{1}=[-B{1}*M{1}*C{1} zer; zer -B{1}*M{1}*C{1}];

% define known matrix

for i=1:r

      for j=1:r

TilA{i,j}=[A{i} zer;

      zer A{j}+B{j}*K{j}];

TildA{j}=[-B{j}*M{j}*C{j} zer; zer -B{j}*M{j}*C{j}];

TilB{j}=[-B{j}*M{j} B{j}*M{j}*C{j}; zer1 zer];

TilD{i}=[D{i};zer1];

TilE{i}=[E{i}; zer];

      end
  end

[Walter Roberson]

Using "clear all" inside a program is like Wile E. Coyote blowing up the butte he is standing on, expecting that he will be safe from falling as long as he does not look down. The only time you should ever use "clear all" inside a program is if you are writing a short script that you intend to be like restarting MATLAB without actually restarting MATLAB.

Answer 1

[ANKUR KUMAR]

C{1}=[0 .1 0];
C{2}=[1 0 .10]; K{1}=[.001 .3 0];

The errors are in these above codes. You already have defined C in double format (as in matrix in the third line). And you are trying to enter in C input as in cell. This is not possible.

My suggestion is to change the above code by

C1{1}=[0 .1 0];
C1{2}=[1 0 .10]; K{1}=[.001 .3 0];

Few more change you should to do are,

TildA{j}=[-B{j}*M{j}*C1{j} zer; zer -B{j}*M{j}*C1{j}];
TilB{j}=[-B{j}*M{j} B{j}*M{j}*C1{j}; zer1 zer];