GMRotI50_cal: A Function for GMRotI50

In wltcwpf/RCTC: The Rotated Combination of Two-Component Ground Motions

A Function for GMRotI50

Description

This function computes Orientation-Independent Measures of Ground Motion – GMRotI50

Usage

GMRotI50_cal(GMRotD, period_t, tmax = 10, tmin = 0)

Arguments

GMRotD	Geometric Mean of rotated gorund motions. It is from the output list of GM_RotD_cal. You can get it by: result = GM_RotD_cal(...), GMRotD = result[[2]]. It is a matrix with length of number of oscillator periods, width of number of rotation angles (from 1 to 90 with 1 degree increment)
period_t	A array of oscillator periods, it is associated with periods of GMRotD
tmax	The maximum usable period for penalty calculation, its default value is 10s
tmin	The minimum usable period for penalty calculation, its defualt value is 0s

Value

A list is returned with GMRotI50, GMRotI50_ang, penalty, the index of tmax in period_t and the index of tmin in period_t

wltcwpf/RCTC documentation built on March 5, 2023, 11:01 p.m.