Question when creating variables

Hi, I am a new user of dynare, and my current version is 4.4.3, matlab is R2014a, and when I try to create new variables and write the code :
var y i k a c;
I got errors in my matlab as :

Error using var
Too many input arguments.

Could anyone help me with this problem? I knew matlab thought me using variance function, but I followed the guide book and I did not see why I got this error but the book said this was the correct way to do it?

Many thanks

Please consult the manual on how to invoke Dynare. You seem to be trying to execute Dynare commands using Matlab. That won’t work. You need to create a mod-file and then execute it using Dynare.