Simplify script conditions: IsNaN and double.NaN

[CharlesTow]

Hey guys,

I'm new to thinkscript so would appreciate if you could help me simplify the following script. Instead of typing in new values for a= 32, b= 21, etc. I would like (if possible) a function where i could paste in my values as parameters,
something like:

function Values(a,b,c,d, D, E, F, G, H , I) {
                                   return  a,b,c,d, D, E, F, G, H , I;
                       }

                        Values(36.4, 34, 23,etc)

or some other solution making it easier to change values.

Thanks in advance.

def a = 36.4;
def b = 47.5;
def c = 54.4;
def D = 64.3;
def E = 74.2;
def F = 42.3;
def G = 34.1;
def H = 30.2;
def I = 28.1;

#determines where lines will be drawn

plot aa = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then a else Double.NaN);
plot bb = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then b else Double.NaN);
plot cc = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then c else Double.NaN);
plot dd = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then D else Double.NaN);
plot ee = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then E else Double.NaN);
plot ff = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then F else Double.NaN);
plot gg = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then G else Double.NaN);
plot hh = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then H else Double.NaN);
plot ii = HighestAll(if IsNaN(close[-1]) and !IsNaN(close) then I else Double.NaN);



aa.SetDefaultColor(color = Color.gray);
bb.SetDefaultColor(color = Color.orange);
cc.SetDefaultColor(color = Color.yellow);
dd.SetDefaultColor(color = Color.ORANGE);
ee.SetDefaultColor(color = Color.red);
ff.SetDefaultColor(color = Color.orange);
gg.SetDefaultColor(color = Color.yellow);
hh.SetDefaultColor(color = Color.orange);
ii.SetDefaultColor(color = Color.green);

Available syntax: https://usethinkscript.com/resources/double-nan-function-in-thinkorswim.14/