efs Optimization

[jnorton]

I have a study with several symbols being displayed. I only need the last couple of symbols to be displayed on the charts. Can this be done with a count function. Any sample code would be great.

[Doji3333]

symbols??

do you mean SHAPES/LINES?? If so, yes - this can be done easily.

here is an example from my friend Steve (posted earlier)

//outside MAIN

var yourcounter = 0;

//before your graphics statements 
if (getBarState() == BARSTATE_NEWBAR) { 
  if (varcounter > 50)
    varcounter =0;
  else varcounter++;

  //your graphics statements - just an example, they can be text, symbols, whatever, this is how you control the total number on the chart, to minimize performance issues

  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"each"+varcounter ); //first line
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"is"+varcounter ); //second unique line
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"a"+varcounter );//third unique line 
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"different"+varcounter );//fourth unique line 
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"line"+varcounter ); //fifth unique line
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"every"+varcounter ); //sixth unique line
  drawLineRelative( x1, y1, x2, y2, style, thickness, color ,"bar"+varcounter ); //seventh unique line
} 

[jnorton]

shapecounter

Brad,


this is what I have so far

Function sell(){

if (getBarState() == BARSTATE_NEWBAR) {
if (getBarState() == BARSTATE_NEWBAR) {
if (shapecounter > 5)
shapecounter =0;
else shapecounter++;
}

drawShapeRelative(0,high()+.1.shape.DOWNARROW,"", Color.red,+shapecounter);

my main looks like

main()

shapecounter ++;

and of course I have

var shapecounter = 0;


above the function preMain();
Like I said earlier my goal in this is to only display the last five shapes on the chart to conserve cpu load.