4 * y_axis_label see y_axis_labels
8 function y_axis_label( $y, $text)
11 $this->set_text( $text );
14 function set_text( $text )
19 function set_colour( $colour )
21 $this->colour
= $colour;
24 function set_size( $size )
29 function set_rotate( $rotate )
31 $this->rotate
= $rotate;
34 function set_vertical()
36 $this->rotate
= "vertical";