pgm: grey power model
In exoplanetX/greyforecasting: A package for grey systems forecasting methods

saturated growth, S shape tendency

1	pgm(y, r = 2, ntest = NULL, term = 1, bg = background, buff = NULL, alpha = NA)

`bg`	background formula.
`buff`	buffer operator used for original data.
`alpha`	coefficient in buffer operator if used.
`x`	data sequence.
`present`	character vector containing xlab and ylab.

g<-pgm(y)

exoplanetX/greyforecasting documentation built on Jan. 17, 2022, 6:46 a.m.

exoplanetX/greyforecasting index

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