Hi etabeta,

Welcome to the Forum.

The short answer to your question is, no, and yes!

The longer answer involves having a look at some of the other posts on the forum on the same/similar topics; do this by utilising the text box in the top-right corner of just about every page on the forum. You might want to start your search by looking for "parabolic trend" and looking through the results there.

Another solution might be to spend some more $$$ and buy one of the external function libraries where this functionality is included, such as : http://www.traderhelp.net/products/ttbox.html These products are not "cheap" and I have no opinion on how well they do or do not work. You'll have to do some more of your own research here.


Hope this helps.

wabbit [:D]

The concept seems reasonably simple:

1) define a starting point by price and date/time
2) define the parameters, c1 and c2 (you already know c0)
3) count the number of bars elapsed since the start (x)
4) compute y = c0 + c1x + c2x^2
5) plot

But things get a lot more complicated when you then want to draw the parabola within a specified time/price range, start the computations at x<0, etc.

Plotting a curve with known parameters is not that difficult, but I think what you are actually after is a system to discover the parameters and then plot the curve automatically? This is where the add-ins will earn their cost. Some of these products are written with traders in mind, not scientists, so their applications draw trendlines to support trading decisions, not parametric filtering to smooth data.

You might consider exporting the data to another application like Excel (or there are many freeware curve fitting apps on the internet) to do the number crunching, then use MS to plot the resultant values?


Hope this helps.

wabbit [:D]