Hi Ernie, Have you looked at my PeakTrough examples at the ZBoard ... I think you will find they are a good starting point?
- you need to settle on a definition of a Peak or Trough - you need to decide which data point, per bar, that you will evaluate - for accurate reporting of Pk/Tr you need to account for equal highs or lows - optionally you can evaluate for Major Peaks or Troughs I have given examples of all of the above there. For your own use: - if you really need lookback versions, and you like my examples as a starting template, then you can recode them for your purpose quite easily. - if you want to quantify Peak or Trough values first you need to define the PK/TR and then use Valuewhen(Peak ==1, Close,1)/Valuewhen(Peak ==1, Close,2) (or similar) to give you a ROC type answer (I have done this successfully, in the past, without the need for loops). If you are interested, have a go ... if you get stuck post your progress code ... if I am around I will help or maybe add an example of ROC(Peaks) to the Zboard. In some circumstances you can also simplify the code .. anything that works over a reasonable test period is fine. I call Peaks and Troughs Pivot Points .... note that there are other versions of Pivots and Peaks around but I don't have anything to say about them. http://zboard.wordpress.com/2009/02/20/189/ Brian. --- In [email protected], "Ernie Newman" <tradi...@...> wrote: > > I am trying to design a new Peak Trough Indicator that would > detect a peak or trough condition before is has risen to a % value. > Or one that does not look forward and be able to number the past conditions > for use in a scan below is my idea of how this might be programed but the > signals are incorrect. > Basically I want to use this as you would a Trough but > I want to define a low trough value before it makes a 10% advance. > How can I get the previous Value of this occurance by assigning it a > number. I am thinking I must use a loop buy not sure? > I hope I am explaining this correctly. > THANKS > Ernie > > > // Test Scan to find 10% Lowest Low Troughs by Number > > TrCond = Ref(L,-2) > Ref(L,-1) AND > Ref(L,-1) < L AND > Ref(H,-1) < H AND Ref(L,-1) < Ref(HHV(H,10),-2)*.90; > for( i = 1; i < BarCount; i++ ) > { > TrCond[ i ] = L[i]; > } > > Filter = TrCond; > AddColumn(C,"Close",1.2); > AddColumn(Ref(L,-1),"L-1",1.2); > AddColumn(TrCond[1],"TR1",1.2); > AddColumn(TrCond[2],"TR2",1.2); > AddColumn(TrCond[3],"TR3",1.2); >
