Indicates the type of trendline.

Name Value Description
msoExponential 5 Specifies an exponential trendline.
msoLinear -4132 Specifies a linear trendline.
msoLogarithmic -4133 Specifies a logarithmic trendline.
msoMovingAvg 6 Specifies a moving average trendline.
msoPolynomial 3 Specifies a polynomial trendline.
msoPower 4 Specifies a power trendline.