Description Usage Arguments Details Value Note Author(s) Source References See Also Examples
View source: R/Oyster_ellipse_parameters.R
Calculates the parameters a and b of the ellipse that forms the base of the shell in growth modelling. de Winter, N. J. (2017) <doi:10.5194/gmd-2017-137>
1 | Oyster_ellipse_parameters(subincr_matrix, IncG, Oyster_height, Oyster_length)
|
subincr_matrix |
Data frame that contains characteristics of every sub-increment |
IncG |
Matrix of X- and Y-coordinates of all interpolated sub-increments |
Oyster_height |
Measured maximum height of the shell |
Oyster_length |
Measured maximum length of the shell in anterio-posterior direction |
Parameters of the base ellipse of the shell are calculated by calculating the ratio between measured shell height and length and the endpoints of all sub-increments
subincr_matrix |
Updated data frame that contains characteristics of every sub-increment, with ellipse parameters added |
Please cite Geoscientific Model Development paper dealing with the ShellTrace model
Niels J. de Winter
GitHub
Manuscript
Supplementary data
Author website
de Winter, N. J.: ShellTrace v1.0 ? A new approach for modelling growth and trace element uptake in marine bivalve shells: Model verification on pacific oyster shells (Crassostrea gigas), Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-137, in review, 2017.
"Oyster_av_thickness"
1 |
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