In various tutorials and previous releases of zeppelin, variables like _rate were explicit in the code. Now, however, these are left in a function (SampleCrowdsale), and I'm not sure what I'm supposed to do with that.
All the tutorials simply have you define all the variables, then create the coin. In this new version, are we somehow calling the function "SampleCrowdsale()" outside of the contract itself? If so, how would one go about doing that. Or are we plugging in the variable values right here?
I'm sure there's some basic overarching idea that I'm missing here, so apart from specifics on how to get this to work, it would be great to understand the overall idea.
Thanks in advance.