Releases: ECSADES/ecsades-r
ecsades 1.1.0
Changes
-
More efficient sampling schemes for model-based contour estimations
• This should improve the smoothness of the higher RP contours (GJE, DSC, IFORM)
• This should also increase the computation speed slightly
• Requires changes to sample_jdistr
• Requires changes to all contour estimating functions, only in the part for simulated data
• Very little change to the help files -
Update the isodensity approach to 3.7.2.3 in DNV GL's recommended practice
• The existing ISO contour defines the RP by the probability of points lying outside the contour
• The new method defines the RP by the HS component only with the Tz = conditional median
• This improves the consistency between the guidelines and the package
• This should also resolve the computation issue of the current ISO algorithm
• Requires rewriting estimate_iso -
Allow user to customise Weibull-log-normal model parameters
• This is already possible, but user needs to be quite familiar with R programming to insert these values
• Requires little change to functions
• Requires additional examples in help file to show users how to do this -
Different treatment of interpolation / extrapolation of contours
• - Changes to the help files to give more guidance as for when the user should estimate contours directly from the data and when the user should fit a distribution first
• - Potential changes to the functions to issue text warnings -
Update the specification of the threshold choice in the marginal and Heffernan-Tawn models
• Allow user to use "the n-th highest observation" to be the threshold
• Issues warning text if the provided value is too low in terms of percentage
• Requires change to fit_ht function and help file -
The standardisation option in DSC contour estimation
• Update the code to always use standardisation
• Requires small change to the function estimate_dsc and help file -
Allow users to switch on / off the perturbation to residual sampling in the Heffernan-Tawn model
• Requires small change to fit_ht function and help file -
Add options to quickly specify the reference point in the generalised-joint-exceedance contour (GJE)
• The users can only specify the reference points by coordinates in the current version
• This adds the option for user to define reference points in terms of return levels of Hs, combined with the corresponding conditional median of Tp
• Requires changes to estimate_gje and help file -
New sample data in the package
• Add a sample data that is continuous time series (without peak picking)
• Requires changes to the help file