calc_quantiles_obs: Calculate Quantiles

In dRiftDM: Estimating (Time-Dependent) Drift Diffusion Models

Calculate Quantiles

Description

Backend functions to calculate quantiles for RT vectors or pdfs

Usage

calc_quantiles_obs(rts_u, rts_l, one_cond, probs)

calc_quantiles_pred(
  pdf_u,
  pdf_l,
  t_vec,
  one_cond,
  probs,
  dt,
  skip_if_contr_low = NULL
)

Arguments

rts_u, rts_l	vectors of RTs for the upper and lower boundary
one_cond	character label
probs	numeric vector with values between 0 and 1 for the probability levels
pdf_u, pdf_l	density values for the upper and lower boundary
t_vec	the time space (required for the pdfs)
dt	the step size corresponding to the time space
skip_if_contr_low	numeric. If the contribution of the upper or lower PDF to the overall PDF is too low, return NAs for this PDF (see also drift_dm_skip_if_contr_low()).

Details

for RTs: straightforward via stats::quantile.

for Densities: Calculate CDF (for each pdf separately here), and then map the desired probability level via the CDF (y-axis) to the time space (x-axis)

Value

a data.frame with the "Cond" label, the "Prob"s and "Quant_U" and "Quant_L" for the quantiles

dRiftDM documentation built on Dec. 1, 2025, 5:08 p.m.