CBCGPChartTrendFormula::CBCGPChartTrendFormula	(	TrendLineType	type,
		CBCGPChartSeries *	pSeries = NULL,
		LPARAM	lParam = NULL
	)

Constructs a CBCGPChartTrendFormula object.

type can be one of the following enumerated values:

• TLT_LINEAR - linear trend line
• TLT_EXPONENTIAL - exponential trend line
• TLT_LOGARITHMIC - logarithmic trend line
• TLT_POLYNOMIAL - polynomial trend line

• TLT_POWER - power trend line

  If pSeries is NULL use AddCoefficient() / SetCoefficients() to display a trend line of the specified type with custom coefficients.

If diagram does not display any series except the "formula" series, you need to either set trend line range using SetTrendRange(), or call CBCGPChartAxis::SetFixedDisplayRange.

Parameters

type	A Trend Line type.
pSeries	A pointer to an input series.
lParam	User defined data.