Dear kash, I've formatted your code to improve the readability. Then it gets obvious, that 1. "A" is not a matrix, because the last line contains 4 elements only, and that 2. "D" contains the character 'o'. Should this be the number zero?
Finally the Euclidean distance is defined between vectors only. Do you want the average distance between the vector D and the column vectors of A, or the vector of distances, or the min or max of them?
