LocalShapeVariables | R Documentation |
Calculates the local shape variables of a set of landmarks using the sequence: - TPS transform between all shapes and the mean shape - Jacobian of the TPS transforms at the centroid of rows of the landmarks in the tesselation argument - Mean center the Jacobians using the Karcher Mean - Take the determinant of the centered jacobians
LocalShapeVariables(
gpa = NULL,
cs = NULL,
landmarks = NULL,
tesselation,
run_parallel = FALSE
)
gpa |
Procustes aligned landmarks. |
cs |
Centoid sizes |
landmarks |
unaligned landmarks. Ignored if both gpa and cs are passed. |
tesselation |
matrix of rows of the landmarks. The centroid of each row is used to mark the position of the jacobians |
run_parallel |
Logical. If computation should be paralleled. Use with caution, can make things worse. Requires that at parallel back-end like doMC be registered |
List with TPS functions, jacobian matrices, local shape variables, mean shape, centroid sizes and individual IDs
Guilherme Garcia
Diogo Melo
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