ct {crch} | R Documentation |
Density, distribution function, quantile function, and random generation
for the left and/or right censored student-t distribution with df
degrees of freedom.
dct(x, location = 0, scale = 1, df, left = -Inf, right = Inf, log = FALSE) pct(q, location = 0, scale = 1, df, left = -Inf, right = Inf, lower.tail = TRUE, log.p = FALSE) rct(n, location = 0, scale = 1, df, left = -Inf, right = Inf) qct(p, location = 0, scale = 1, df, left = -Inf, right = Inf, lower.tail = TRUE, log.p = FALSE)
x, q |
vector of quantiles. |
p |
vector of probabilities. |
n |
number of observations. If |
location |
location parameter. |
scale |
scale parameter. |
df |
degrees of freedom (> 0, maybe non-integer). |
left |
left censoring point. |
right |
right censoring point. |
log, log.p |
logical; if TRUE, probabilities p are given as log(p). |
lower.tail |
logical; if TRUE (default), probabilities are P[X <= x] otherwise, P[X > x]. |
If location
or scale
are not specified they assume the default values
of 0
and 1
, respectively. left
and right
have the defaults -Inf
and Inf
respectively.
The censored student-t distribution has density f(x):
T((left - μ)/σ) | if x ≤ left |
1 - T((right - μ)/σ) | if x ≥ right |
τ((x - μ)/σ)/σ | if left < x < right |
where T and τ are the cumulative distribution function
and probability density function of the student-t distribution with
df
degrees of freedom respectively, μ is the location of the
distribution, and σ the scale.
dct
gives the density, pct
gives the distribution
function, qct
gives the quantile function, and rct
generates random deviates.