what is MSE in newrb

I have a code for new rb

A=rand(64,2);

Tc=[ones(64,1) 2*ones(64,1)];

D=newrb(A,Tc);

E=A(:,2);

Y=sim(D,E)

NEWRB, neurons = 0, MSE = 0.25

i get output as 2(64x1),but what that MSE means,please tell

and i have been asked to take 40 datas(40x2) for training nd rest for testing,if i perform i get error

Error using ==> network.sim at 178 Inputs are incorrectly sized for network. Matrix must have 64 rows.

so please can anyone tell what command must be used

[José-Luis]

MSE is mean squared error.

[FIR]

OK BUT in my output i get ass value as 2,but why i get MSE as 0.25

[José-Luis]

MEAN squared error

Answer 1

[DHARMRAJ PRASAD]

use, for any network m=mse(name_of_network,output_of _network,target_of_network)