Histogram Control: _addReferenceLine

Histogram Control: _addReferenceLine

Add a reference line to the chart

Syntax
Details

Syntax

objectName._addReferenceLine( axis, refId, vtype,value,label );

objectName._addReferenceLine( axis, refId, vtype, value );

objectName._addReferenceLine( axis, refId, vtype, value3, label );

objectName._addReferenceLine( axis, refId, vtype, value5 );

Argument Type Use Description

axis Character Input refline axis. Should be either 'x' or 'y'

refId Numeric Input unique ID returned for the reference line. Used to identify reference line for other related methods

vtype Character Input indicates whether the value parameter specifies a data value or a location on the axis

value Numeric Input specifies the reference line's initial position on the axis

label Character Input reference line label

value3 Character Input specifies the reference line's initial position on the axis

value5 Character Input specifies the reference line's initial position on the axis

Argument	Type	Use	Description
axis	Character	Input	refline axis. Should be either 'x' or 'y'
refId	Numeric	Input	unique ID returned for the reference line. Used to identify reference line for other related methods
vtype	Character	Input	indicates whether the value parameter specifies a data value or a location on the axis
value	Numeric	Input	specifies the reference line's initial position on the axis
label	Character	Input	reference line label
value3	Character	Input	specifies the reference line's initial position on the axis
value5	Character	Input	specifies the reference line's initial position on the axis

Details

If the vtype parameter is set to Value, use a data value to position the line; for example, specify 5 to position the line at axis value 5. If the vtype parameter is set to Location, use a percentage to position the line; for example, specify .5 to position the line in the middle of the axis. Location values are expected to range from 0 to 1.

You cannot add a reference line on an axis that displays categorical or character data. If there is an error while creating the reference line, the refID parameter is set to -1.

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