Fit the gene expression along spatial locations
Arguments
- expr
The normalized gene expression matrix. Rows represent genes and columns represent spots/cells
- coord
The matrix of spatial locations. Rows represent spots/cells. The column named "row" ("col") represents row (column) coordinates
- knot
Whether to select the optimal number of knots automatically
- maxknotallowed
A user-defined maximum number of knots (5 by default)