Extracting murrey math data

[divergence_trader]

I am currently developing an expert which is used on the 1min chart. However it needs to know the values of the 3/8 and 5/8 murrey lines on a 5min chart.

How do I get this data? I've tried using:

fivethree=iCustom(Symbol(),PERIOD_M5, "Murrey_Math_MT4_VG_3_5",5, 0); fivefive=iCustom(Symbol(),PERIOD_M5, "Murrey_Math_MT4_VG_3_5",7, 0);

But the values come out as "0".

What am I doing wrong?

Thanks!

[divergence_trader]

BTW "Murrey_Math_MT4_VG_3_5" is my version of the standard murrey indicator which balcks out all lines apart from 3/8 and 5/8,