Thanks to all who commented on this basic question for me. Curious, now that I know the answer, is to go and search in Help for the instruction that tells you that you can control the height of the volume bars to 1/x the space of the pane. Maxvalue and Minvalue are clearly mentioned but the connection to the height of the bars is not easily found (I never found it). But, that is what this list is for...thanks again. Ken
_____ From: amibroker@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of J. Biran Sent: Thursday, November 13, 2008 8:40 PM To: amibroker@yahoogroups.com Subject: RE: [amibroker] Controlling Hight of Volume Bars (corrected) Plot command has a special feature just for this. See following: PlotVOL = ParamToggle("plot Volume?","No|Yes",0); VolColor = (C>O OR (C==O AND (H-C)<=(C-L)))*ParamColor("VUpColor",colorBlueGrey)+ (C<O OR (C==O AND (H-C)>(C-L)))*ParamColor("VDnColor",colorPink); VolScale = Param("1/Vol.Height (TimeBar chart)(fraction of window) 5=1/5=20%",5, 2, 100, 1.0) ; // Timebars if (PlotVOL >0) { Vheight = VolScale; Plot(Prec(Volume ,0),"V",VolColor, styleNoTitle|styleOwnScale|styleThick|ParamStyle("VStyle",styleHistogram, maskHistogram),Vheight ); } -- Joseph Biran ____________________________________________ From: amibroker@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ken Close Sent: Thursday, November 13, 2008 5:01 PM To: amibroker@yahoogroups.com Subject: [amibroker] Controlling Hight of Volume Bars Excuse the basic question, but I have generally never dealt with volume as much as I am now that I am downloading data with a real volume field. On some charts but not all, the volume bars, overlaid on a candle price chart, extend too far up the height of the pane and overlap the candles. I have tried in vain to adjust the Plot statement to make the bars shorter. I have tried the maximum and minimum flags as explained in Help but it does not seem to work. Tried to make the max and min parameters but again nothing. Can someone offer some specific advice. Thanks.