Parametric Variables

from gana import Prg, I, T

p = Prg()

Index Sets

Parameteric variables can (ideally should) be declared at some index

p.y = I(size=2, tag='year')
p.p = I('pv', 'wf', tag='variable renewable energy processes')

Parameteric

p.capex = T(p.p, p.y, _=[(2000, 2010), (4000, 4020), (3000, 3010), (3500, 3530)])

The order of the index elements is utilized to assign parameter values.

In this example, the index is process*years or {PV, WF}x{year1, year2} = {(PV, year1), (PV, year2), (WF, year1), (WF, year2)}

p.capex.map

{(pv, y[0]): capex[0],
 (pv, y[1]): capex[1],
 (wf, y[0]): capex[2],
 (wf, y[1]): capex[3]}

Printing

p.capex.show(True)

\[\displaystyle {{capex}}_{pv, y{0}}\]

\[\displaystyle {{capex}}_{pv, y{1}}\]

\[\displaystyle {{capex}}_{wf, y{0}}\]

\[\displaystyle {{capex}}_{wf, y{1}}\]