Description Usage Arguments Details Value

This function fits a vector generalized additive model (VGAM) from the VGAM package for each gene in a CellDataSet. By default, expression levels are modeled as smooth functions of the Pseudotime value of each cell. That is, expression is a function of progress through the biological process. More complicated formulae can be provided to account for additional covariates (e.g. day collected, genotype of cells, media conditions, etc).

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`cds` |
the CellDataSet upon which to perform this operation |

`modelFormulaStr` |
a formula string specifying the model to fit for the genes. |

`relative_expr` |
Whether to fit a model to relative or absolute expression. Only meaningful for count-based expression data. If TRUE, counts are normalized by Size_Factor prior to fitting. |

`cores` |
the number of processor cores to be used during fitting. |

This function fits a vector generalized additive model (VGAM) from the VGAM package for each gene in a CellDataSet. By default, expression levels are modeled as smooth functions of the Pseudotime value of each cell. That is, expression is a function of progress through the biological process. More complicated formulae can be provided to account for additional covariates (e.g. day collected, genotype of cells, media conditions, etc).

a list of VGAM model objects

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