SetDrawYGrid
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## SetDrawYGrid

SetDrawYGrid — Whether or not to draw the Y grid lines

## Synopsis

    $plot->SetDrawYGrid($dyg)

## Description

`SetDrawYGrid` enables or disables the drawing of the Y grid lines. (The Y grid lines are the horizontal lines which intersect the Y axis and are parallel to the X axis.) The default is to draw the Y grid.

## Parameters

`$dyg`

  True to draw the Y grid lines, False to not draw the Y grid lines.

## Notes

SetLightGridColor sets the color of the grid lines.

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