Draw tick marks on all edges of a Plot?
If the TickAll value of a Plot is non-zero (the default), then tick marks will be drawn on all edges of the Plot. Otherwise, they will be drawn only on those edges where the numerical and descriptive axis labels are drawn (see the Edge(axis) attribute).
In some circumstances, numerical labels and tick marks are drawn along grid lines inside the plotting area, rather than around its edges (see the Labelling attribute). In this case, the value of the TickAll attribute is ignored.