Help In making smooth line

Hi All
I want To Make Smooth line with meta trader programming (In The Shape Like Moving Average Line Because I don't Want It Straight) But Based On Specific Points
Linke On 11/24/2008 Price 1.6500
11/25/2008 Price 1.600
11/26/2008 Price 1.700
And so on with specific points i determin it