SnnsRObject$setTTypeUnitsActFunc: Set the activation function for all units of a certain ttype.
Description
The function uses the function
SnnsRObject$getAllUnitsTType to find all
units of a certain ttype, and sets the activation
function of all these units to the given activation
function.
Usage
## S3 method for class 'SnnsR':
setTTypeUnitsActFunc(ttype, act_func)