How to replace rows contain NaN with values from another matrix?

A = [728140.500000000 	 1840.00 
728140.541666667 	 1780.00 
728140.583333333 	 NaN 
728140.625000000 	 NaN 
728140.666666667 	 NaN 
728140.708333333 	 NaN 
728140.750000000 	 NaN 
728140.791666667 	 NaN 
728140.833333333 	 NaN 
728140.875000000 	 NaN 
728140.916666667 	 NaN 
728140.958333333 	 NaN ]

B = [728140.500000000 	 1863.53 
728140.541666667 	 1830.47 
728140.583333333 	 1802.11 
728140.625000000 	 1782.74 
728140.666666667 	 1779.32 
728140.708333333 	 1803.74 
728140.750000000 	 1868.99 
728140.791666667 	 1981.78 
728140.833333333 	 2137.96 
728140.875000000 	 2318.80 
728140.916666667 	 2492.02 
728140.958333333 	 2621.85 ]

Above is the Matrix A and B where first column of both matrix has the same value.. I need to replace the NaN from matrix A with the values from Matrix B. can anyone help this? should i use ismember function as well?

Answer 1

[Alex Mcaulley]

A(isnan(A)) = B(isnan(A))

[hanif hamden]

thanks. one more i would like to remove all the value data at matrix A before replacing the NaN value with Matrix B.. Example.. before replacing NaN value at matrix A.. row 1 and row 2 need to be removed first..

[Alex Mcaulley]

Do you mean this?

idx = ~isnan(A(:,2));
A(~idx,2) = B(~idx,2);
A(idx,:) = [];

[hanif hamden]

Thank you so much :)