Lode guidance functions
These functions control the order of lodes within strata in an alluvial
diagram. They are invoked by stat_alluvium() and can be passed to
the lode.guidance parameter.
lode_zigzag(n, i) lode_zagzig(n, i) lode_forward(n, i) lode_rightward(n, i) lode_backward(n, i) lode_leftward(n, i) lode_frontback(n, i) lode_rightleft(n, i) lode_backfront(n, i) lode_leftright(n, i)
n |
Numeric, a positive integer |
i |
Numeric, a positive integer at most |
Each function orders the numbers 1 through n, starting at index
i. The choice of function made in stat_alluvium()
determines the order in which the other axes contribute to the sorting of
lodes within each index axis. After starting at i, the functions order
the remaining axes as follows:
zigzag: Zigzag outward from i, starting in the outward direction
zigzag: Zigzag outward from i, starting in the inward direction
forward: Increasing order (alias rightward)
backward: Decreasing order (alias leftward)
frontback: Proceed forward from i to n, then backward to 1
(alias rightleft)
backfront: Proceed backward from i to 1, then forward to n
(alias leftright)
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