rollup_radii_of_gyration_unc {massProps} | R Documentation |
Roll up radii of gyration uncertainties
Description
rollup_radii_of_gyration_unc()
adds calculated radii of gyration uncertainties to a data frame
of rolled-up mass properties and uncertainties.
Radii of gyration uncertainties are calculated directly from moments of inertia and mass and their uncertainties; they are not recursively-defined. Radii of gyration uncertainties for composite elements depend on uncertainties of their component elements.
Usage
rollup_radii_of_gyration_unc(tree, df)
Arguments
tree |
An 'igraph' tree whose vertices are named as the values of the |
df |
A data frame with (at least) these columns: |
Value
A data frame with the same columns as df
, plus
radii of gyration in columns sigma_kx
, sigma_ky
, and sigma_kz
.'
Examples
sawe_table_rollup <- rollup_mass_props(sawe_tree, sawe_table)
rollup_radii_of_gyration_unc(sawe_tree, add_radii_of_gyration(sawe_table_rollup))