How to: |
The trendline properties draw a trendline and equation label in bubble and scatter charts.
Note: You can also draw a trendline for an individual series, For information, see Series-Specific Properties.
The following code shows the properties and default values for the trendline:
trendline: { enabled: false, mode: undefined line: { width: 1, color: 'black', dash: '' }, equationLabel: { visible: false, font: '8pt Sans-Serif', color: 'black', mode: 'equation' } },
trendline: { enabled: boolean1, mode: 'tmodestring' line: {width: wnumber,color: 'tcstring1',dash: 'dstring'}, equationLabel: { visible: boolean2, font: 'fstring', color: 'ecstring', mode: 'emodestring' } }
where:
Enables or disables the trendline. Valid values are:
Is string that defines the trendline mode (the type of equation used to generate the trendline). Valid values are:
Is a number that defines the width of the trendline in pixels. The default value is 1.
Is a color defined by a color name or numeric specification string that defines the color of the trendline. The default value is 'black'.
Is a string that defines the dash style of the trendline. Use a string of numbers that defines the width of a dash followed by the width of the gap between dashes (for example, dash: '1 1' draws a dotted line). The default value is '', which draws a solid line.
Controls the visibility of the equation label. Valid values are:
Is a string that defines the size, style, and, typeface of the equation label. The default value is '8pt Sans-Serif'.
Is a color defined by a color name or numeric specification string. The default value is 'black'.
Is a string that defines the equation label mode. Valid values are;
The following request generates a bubble chart and defines a linear trendline that is a red dashed line and has a green equation label that shows the correlation coefficient:
GRAPH FILE WF_RETAIL_LITE
SUM REVENUE_US MSRP_US DISCOUNT_US
BY PRODUCT_CATEGORY
ON GRAPH PCHOLD FORMAT JSCHART
ON GRAPH SET LOOKGRAPH BUBBLE
ON GRAPH SET STYLE *
*GRAPH_JS
trendline: {
enabled: true,
mode: 'linear',
line: {width: 2,color: 'red',dash: '2 4'},
equationLabel: {visible: true,font: 'bold 12pt Sans-Serif',color: 'green', mode:'r'}
}
*END
INCLUDE=ENIADefault_combine.sty,$
ENDSTYLE
END
The output is:
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