How can I set ResetFcn?

Hello,

I'm trying to set resetFcn.

My purpose is set initialcondition and target posture in every trainsets.

1. s0 = [1 0 0 0] **s0 is initial state
2. a0 = [1; 0; 0; 0;] ** a0 is initial action
3. sG = [1 rand rand rand] **sG is target posture

Here is my code:

env.ResetFcn = @(in)motorResetFcn(in); // start to set ResetFcn called 'motorResetFcn'

Here is my code : motorResetFcn.m

function in = motorReset(in)

% randomize target posture

blk = sprintf('sphericalMotorRL/Target_Posture');

t = ['1' '2/3*pi*randn-pi/3' '2/3*pi*randn-pi/3' '2/3*pi*randn-pi/3'];

in = setBlockParameter(in,blk,'Value',num2str(t));

% randomize initial action and state

h = ['1' '0' '0' '0'];

blk = 'sphericalMotorRL/sphericalMotor/s';

in = setBlockParameter(in,blk,'InitialCondition',num2str(h));

h = ['1'; '0'; '0'; '0';];

blk = 'sphericalMotorRL/sphericalMotor/a';

in = setBlockParameter(in,blk,'InitialCondition',num2str(h));

end

My initialcondition and target posture is maxtrix,

I don't know how to declare maxtrix..... what do I have to fix?