# Assume some variable follows a four-parameter Beta distribution with
# location parameters l = 0.25 and u = 0.75, and shape parameters alpha = 5
# and beta = 3. To compute the quantile at a specific point of the
# distribution (e.g., 0.5) using qBeta.4P():
qBeta.4P(p = 0.5, l = 0.25, u = 0.75, alpha = 5, beta = 3)
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