pChart删除Y轴刻度

Need to remove ticks from pChart library, or make them same color as background (white) enter image description here

This is the code i'm using, but can't make it

            `$scaleSettings = array("MODE" => SCALE_MODE_ADDALL_START0,
                   "XMargin"=>0,
                   "YMargin"=>0,
                   "Floating"=>FALSE,
                   "GridColor"=>new pColor(000),
                   "GridTicks" => 0,
                   "DrawSubTicks"=>FALSE,
                   "CycleBackground"=>FALSE,
                   "DrawXLines" => FALSE,
                   "DrawYLines" => FALSE,
                   "RemoveXAxis" => TRUE,
                   "RemoveYAxis" => TRUE,
                   "YTickR" => 0,
                   "YTickG" => 0,
                   "YTickB" => 0);

`

Any hint?