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molfetta  
#1 Posted : Thursday, July 26, 2007 4:13:21 AM(UTC)
molfetta

Rank: Newbie

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Joined: 7/20/2007(UTC)
Posts: 5

Hi everybody,

I'd like to build an indicator that makes the subtraction among two already plotted indicators. For example, if I have a 21 and a 15-day moving averages, I'd like to be able to select the minuend and the subtrahend and then plot the difference using the indicator.

I could write it in a non flexible way. I mean, considering the 2 moving averages: mov(c,21,s) - mov(c,15,s). But, as I told, this is not flexible and will work for the those moving averages only.

Can anyone help me?

Thanks in advance

Marco

oztrader  
#2 Posted : Thursday, July 26, 2007 6:36:56 AM(UTC)
oztrader

Rank:: Advanced Member

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Joined: 7/12/2007(UTC)
Posts: 134
Location: Perth Western Australia

Marco,

What are the variables you require in the MA's?

oztrader

wabbit  
#3 Posted : Thursday, July 26, 2007 6:38:50 AM(UTC)
wabbit

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Joined: 10/28/2004(UTC)
Posts: 3,111
Location: Perth, Western Australia

Was thanked: 16 time(s) in 16 post(s)
Marco

You cannot dynamically or programmatically select plotted functions, but you might like to try creating another indicator where you use the Input() function to achieve a similar result:

Code:

{user data}
prd1:=Input("MA1 periods",1,500,21);
prd2:=Input("MA2 periods",1,500,15);
data:=Input("Data: 1-O 2-H 3-L 4-C 5-MP 6-Typ",1,6,4);
data:=If(data=1,O,If(data=2,H,If(data=3,L,If(data=4,C,If(data=5,MP(),Typical())))));

{indicators}
ma1:=mov(data,prd1,e);
ma2:=mov(data,prd2,e);

diff:=ma1-ma2;

{plot/return}
0;
diff;




Hope this helps

wabbit [:D]

molfetta  
#4 Posted : Thursday, July 26, 2007 9:02:14 AM(UTC)
molfetta

Rank: Newbie

Groups: Registered, Registered Users
Joined: 7/20/2007(UTC)
Posts: 5

Thanks to all of you!

Special thanks to Wabbit. I have a couple of things to show you based on the cycle theory. The only problem is that I don't speak English, so first of all I have to think how to explain it. It takes time......

For Oztrader: the varialbles could be the "price field" and the "lenght". But the problem is not this. I'd like it to work, for example, for 2 different momentum or other indicators without writing it down everytime......

Best Regards

Marco

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