New ea for mt4

This job requires a freelancer who is familiar with the broker Oanda and drawing best average lines based on many x,y plots.  At length, I want a ea that buys or sells forex currency pair(s) based on the last 20 minute historical position ratio of oanda as well as last candles close in relation to previous two candles and mathematical equation of best fit line.   i will need source code upon completion... need ability to make changes to sl, lot size, target price and add or subtract currency for purchase. Will send you complete details after job is accepted and you confirm that you understand the task and are familiar with Oanda.  this job is for experienced developer... 

Please confirm that you understand the following in connection with trading strategy before you accept job.... Ask questions if you need further clarity:

    Gather (x,y) points beginning at and including 8:00 a.m. until 10:30 a.m. with x representing time in intervals of 1 minute and y representing corresponding tick volume for each said i minute from 8:00 am until 10:30 a.m.

So, 8:00 a.m. would be plotted using (1 for x, y for corresponding tick volume for 8:00 a.m.)

And 8:01 a.m. would be plotted using (2, corresponding tick volume for 8:01 a.m.)

And 8:02 a.m. would be plotted using (3, corresponding tick volume for 8:02 a.m.)

Line  for best fit line will continually be updated and displayed on the screen for user to see as well as latest corresponding equation for this same best fit line using said values.   

***Very important:  please understand that your best fit line and it's corresponding slope and equation will change by the minute because each minute represents an additional x,y point to be incorporated into best fit line.  Also best line at that time is based on all x,y plots so far since 8:00am(not just the last two x,y plots)  See http://illuminations.nctm.org/Activity.aspx?id=4186 if you don't know what best fit line is or it's equation.  See http://regentsprep.org/Regents/math/geometry/GCG1/EqLines.htm if you dont know what slope of line is...

***If last candle results in an upward sloping candle greater than 15 degrees(no negative slope) and Volume for last candle is lower than volume you would get from current best line value if x value for last candle was inserted then take trade if and only if all other trade criterias are met as well.