Do you mean to only plot a line between the last 2 peaks ( or throughs ) and nothing else before and after ? If the answer is yes then let me tell you that it is not possible.

I'm sorry I'm not sure I understood what you wanted but try this and let me know if I'm getting closer :) LastValue(Trough(1,C,3)); LastValue(Peak(1,C,3))

That was actually quite a puzzle :D Here is the best I can come up with : {Trough} TR1:=Trough(1,L,3); {current trough Value} TR2:=Trough(2,L,3); {previous trough value} CD1:=TR1<>Ref(TR1,-1); {Trough Value change} CD2:=TR2<>Ref(TR2,-1); {Trough Value change} C1:=ValueWhen(1,CD1,Cum(1)); {Number of bars that have passed till condition } C2:=ValueWhen(2,CD2,Cum(1)); {Number of bars that have passed till condition } V1:=ValueWhen(1,CD1,L); {Low value at time of Current trough} V2:=ValueWhen(2,CD2,L); {Low value at time of Previous trough} Increment:=LastValue((V1-V2)/(C1-C2)); If(TR2<>Ref(TR2,-1),L,PREV+Increment) For the peak version just replace TR1 and TR2. There are problems with this : #1 only the last leg has an accurate value #2 I can't just display the last Leg accross the chart #3 I made it, so there might be a mistake somewhere :) What we are trying to do here is calculate how much the trough value has changed and in how many bars. Then I calculate the daily rate of change and apply it to all the bars starting from the second trough. For example My trough1 is 20 My trough2 is 10 , the value has changed $10 and let's say it was done in 10 bars. It means that each day till the most recent trough the price went up $1. So In the final of my formula I say Trough2 has occured, plot the Low value, if not Use the previous value and add the daily change On trough2 we will have 10 ( Low Value ) on the bar after we will have 11 ( Prev+Increment) next .... 12 (Prev+Increment) I hope this helps explain what I did.

Post the code on this thread, I'm sure others will be interrested as well.

Patrick, Here is some code someone posted on the web for drawing a trendline. It prompts for a period variable (we'll call 'x') which then looks for the last two highs that spanned the next 'x' bars. I'm more interested in its ability to draw only one leg of a line. Drop this indicator on the price chart and play with different periods. Any chance of drawing this kind of line on only the last leg of our peak/trough example? Thank you... peri:=Input("Period",2,100,5); hic:= H>Ref(HHV(H,peri),-1) AND H>=Ref(HHV(H,peri),peri); y1t:=LastValue(ValueWhen( 2, hic=1, H )); y2t:=LastValue(ValueWhen( 1, hic=1, H )); x1t:=LastValue(ValueWhen( 2, hic=1 , Cum(1) )); x2t:=LastValue(ValueWhen( 1, hic=1 , Cum(1) )); {at:=(y1t-y2t)/(x1t-x2t);bt:=y1t-at*x1t;} yt:=(y1t-y2t)/(x1t-x2t)*Cum(1)+y1t-(y1t-y2t)/(x1t-x2t)*x1t; {yt:=at*cum(1)+bt;} e1:=H-yt; ret1:=LastValue(Cum(1)-(x1t+Int((x2t-x1t)/2)-1)); seg1:=LastValue(Int((x2t-x1t)/2+Int(2*peri/5)){+peri-1}); x1:=LastValue(Cum(1)-HHVBars(Ref(e1,-ret1),seg1)-ret1); y1:=LastValue(ValueWhen(1,x1=Cum(1),H)); ret2:=LastValue(Cum(1)-(x2t+Int(4*peri/5))); seg2:=LastValue(Int((x2t-x1t)/2)+Int(4*peri/5)); x2:=LastValue(Cum(1)-HHVBars(Ref(e1,-ret2),seg2)-ret2); y2:=LastValue(ValueWhen(1,x2=Cum(1),H)); {a:=(y1-y2)/(x1-x2);b:=y1-a*x1;} a:=(y1-y2)/(x1-x2); HiTL:=If(Cum(1)>x1t-5,(y1-y2)/(x1-x2)*Cum(1)+y1-(y1-y2)/(x1-x2) *x1,BarsSince(Cum(1)>x1t-5)); Diff:=Ref(HiTL-L,-LastValue(Cum(1)-x2)); decal:=LastValue(HHV(Diff,x2-x1)); HiTL;HiTL-decal;

Yes, that is it.... I am going to check for crosses above peak trend lines (peak trend lines that are downsloping) and below trough trend lines (trough trend lines that are up sloping). Is there any way to show the whole line from Trough(2,L,3) to Trough(1,L,3) instead of just extending it to the right from Trough(1,L,3)? Showing the whole line touching both troughs allows to visually see if we have two well defined troughs. As it draws now, we cannot tell if both troughs look good. This is a subjective judgement by eye-balling the line touches. It makes it easier to tell if I'm going to play a break of the trend line by how well the troughs 'look'. This comes in handy more for smaller % troughs (4% or lower). Would you think we need to use the log function to accurately show crosses through the trend line?

Patrick, Thank you for all your help.

It should be fun. There are a few more edits I need to apply. BTW... if they are looking for any enhancement requests for future versions... :D any chance upgrades will increase the number of variables that can be defined? Also, an easier interface to load individual stocks rather than having the user navigate through folders to find them... that could be done behind the scenes, hidden from the user regardless of where they reside. Again, thank you for all you've done!

Wow that's pretty good, where were you last week :D Have you ran into any problems with this Formula?

A very late reply, but better late than never... You can find "2-point plot - coding example of 2-point, x/y line plot - useful for creating automatic chart trendlines" here. Look for "Divergence v3 - class "A" (strongest bullish/bearish patterns) signals, price vs 4-indicator divergence" in the "System/signal indicators" section of the above link. The MACDH Divergence kit may also be of interest to you. jose '-)