MATLAB: How to simplify this code

indexingmatrixsimplificationvector

X16 = [X{3}',X{4}',X{5}',X{6}',X{7}',X{8}',X{9}',X{10}',X{11}',X{12}',X{13}',X{14}',X{15}',X{16}'];

% X32 = [X[3]' to X[32]'];

% X48 = [X{3}' to X[48}'];

% X64 = [X{3}' to X{64}'];

% X80 = [X{3}' to X{80}'];

% X96 = [X{3}' to X{96}'];

% X112 = [X{3}' to X{112}'];

% X128 = [X{3}' to X{128}'];

% X144 = [X{3}' to X{144}'];

% X160= [X{3}' to X{160}'];

Hi, lets say i have already defined my X{3} to X{160}, how do i define my X32, X48, X64, X80, X96, X112, X128, X144, and X160 without writing one by one?

Best Answer

X = 1:10 ; 
X10 = zeros([],1) ; 
for i = 3:10
X10 = [X10 X(i)] ; 
end

The above can be simply achieved using:

X10 = X(3:10) ;

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MATLAB: How to run this code for 1000 times

N = 1000 ; 
MSE = zeros(N,2) ; 
for i = 1:N
  %For C1
  lambda1 = [60.21, 41.58, 9.11, 8.71, 3.83, 3.74, 18.06] ;
  r1 = poissrnd(lambda1) ;
  
  %For C2
  lambda2 = [41.58, 60.21, 8.71, 9.11, 3.74, 3.83, 18.06] ; 
  r2 = poissrnd(lambda2) ;
  
  %Designed training sequences x1 and x2
  x1 = [1,1,1,0,0,0,0,1,0,1,0,1,1,0,0,1] ;
  x2 = [1,1,1,0,1,0,0,0,1,1,1,0,0,0,0,1] ;
  
  %X[3] to X[16]
  X3 = [1 1 1 1 1 1 1]' ;
  X4 = [0 0 1 1 1 1 1]' ;
  X5 = [0 1 0 0 1 1 1]' ;
  X6 = [0 0 0 1 0 0 1]' ;
  X7 = [0 0 0 0 0 1 1]' ;
  X8 = [1 0 0 0 0 0 1]' ;
  X9 = [0 1 1 0 0 0 1]' ;
  X10 = [1 1 0 1 1 0 1]' ;
  X11 = [0 1 1 1 0 1 1]' ;
  X12 = [1 0 0 1 1 1 1]' ;
  X13 = [1 0 1 0 0 1 1]' ;
  X14 = [0 0 1 0 1 0 1]' ;
  X15 = [0 0 0 0 1 0 1]' ;
  X16 = [1 1 0 0 0 0 1]' ;  
  %X,a 7x14 matrix
  X = [X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13,X14,X15,X16];  
  %C, a 7x2 matrix
  C = [r1; r2]' ;  
  %Y, a 14x2 matrix
  Y = X'*C ;  
  %Yd = Poiss(Y) (at equation (8))
  Yd = poissrnd(Y) ;  
  %y1, a 14x1 matrix ; y2, a 14x1 matrix
  y1 = Y(:,1) ; 
  y2 = Y(:,2) ;
  %Least Square Estimate of C  
  Cls = (inv(X*X'))*(X*Yd) ;  
  %  To set to zero all the negative entries of C
  Cls1 = max(Cls,0) ;  
  %Mean square error of LS C and C
  MSE(i,:) = mean((C - Cls1).^2) ;
end

MATLAB: Monte carlo simulation simplification

lambda = [60.21, 41.58, 9.11, 8.71, 3.83, 3.74, 18.06]
r = poissrnd(lambda)

Best Answer

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MATLAB: How to run this code for 1000 times

MATLAB: Monte carlo simulation simplification

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