Darvas box theory is a trading strategy developed by Nicolas Darvas to target stocks using highs and volume as key indicators. Darvas developed his theory in the 1950s while travelling the world as a professional ballroom dancer. Darvas’ trading technique involves buying into stocks that are trading at new highs and drawing a box around the recent highs and lows to establish entry point and placement of the stop-loss order.

I was looking for Darvas’ box indicator, I managed to find the forum on the site with code exchanges for it.Not having found a provision in the library, I saw fit to share this code.

Thank you to “zen83” for its sharing

Here is the link to the discussions: https://www.prorealcode.com/topic/darvas-boxes-help/

//
//============================== Indicateur

if box=1 and (high>DownBoxe or low<UpBoxe) then
 box=0
 flag=0
endif
if box=0 and flag=0 and low>low[3] and low[1]>low[3] and low[2]>low[3] then
 th=low[3]
 flag=1
endif
if flag=1 and box=0 and low<th then
 flag=0
endif
if flag=1 and box=0 and high<high[3] and high[1]<high[3] and high[2]<high[3] then
 DownBoxe=high[3]
 UpBoxe=th
 box=1
endif

once DownBoxe=undefined
once UpBoxe=undefined

//============================== Fin

return UpBoxe style (point,3) as "UpBoxe",DownBoxe style (point,3) as "DownBoxe"