I'm trying to look at the number of stocks down 20% or more from the 52week high, so I wrote:  c1<(H251*.8).  Is this going to generate what I'm looking for?  Thank you.

You probably want something more like the following:

C <= .8 * MAXH252

H251 is the high of 251 bars ago while MAXH252 is the highest high in the most recent 252 bars.

Stochastic crossing in a 3 day chart. I have a 3 day chart with a Stochastic 14,5,3 in a window. Can you write me the PCF for the SD5 crossing above the SD3 with the period 14?

I'm going to assume you mean SK5 crossing up through SD3 and that the stochastic is simple and not exponential.

STOC14.5 > AVG(STOC14.5,3) AND STOC14.5.1 <= AVG(STOC14.5.1,3)

Understanding Stochastics

Bruce, That's simple. I have the stochastic in a chart where each bar represents 3 days.A long time ago you wrote one for a 4day bar chart and it was more complex. Are you sure you understood my query?

I hadn't noticed this was in the v7 forum. In v16, the formulas are the same no matter what the time frame might be. Please try the following Condition Formula instead.

2 * STOC42 + STOC42.1.3 > 2 * STOC42.1.15 + STOC42.1.18 AND 2 * STOC42.1.3 + STOC42.1.6 <= 2 * STOC42.1.18 + STOC42.1.21

Thanks. Looks more like what I expected. I should have noted I use v7. The new version is a bit too complex for this oldtimer. Maybe someday I'll figure out how you do this PCF. Or better yet learn v16.

I am sorry I didn't catch that the first time, but I'm glad you caught it.