GridLines::grid

Generated when the value of the GridLines option does not match an expected form.

The value of the GridLines option is expected to be None, Automatic, or a list {xgrid, ygrid} specifying the grid in each direction.

Each grid line is described either by a number giving the position of the line or by using a list {pos, style} indicating the position and style of the line.

The value of the GridLines option can also be a function which returns a grid specification when applied to the minimum and maximum values of the plot range.

Examples