Visualize t distribution

Source: R/vdist-t.R

Visualize how degrees of freedom affect the shape of t distribution, visualize quantiles out of given probability and probability from a given quantile.

vdist_t_plot(df = 3, print_plot = TRUE)

vdist_t_perc(
  probs = 0.95,
  df = 4,
  type = c("lower", "upper", "both"),
  print_plot = TRUE
)

vdist_t_prob(
  perc = 1.6,
  df = 7,
  type = c("lower", "upper", "interval", "both"),
  print_plot = TRUE
)

Arguments

df

Degrees of freedom.
print_plot

logical; if TRUE, prints the plot else returns a plot object.
probs

Probability value.
type

Lower tail, upper tail, interval or both.
perc

Quantile value.

See also

TDist

Examples

# visualize t distribution
vdist_t_plot()

vdist_t_plot(6)

vdist_t_plot(df = 8)


# visualize quantiles out of given probability
vdist_t_perc(probs = 0.95, df = 4, type = 'lower')

vdist_t_perc(probs = 0.35, df = 4, type = 'upper')

vdist_t_perc(probs = 0.69, df = 7, type = 'both')


# visualize probability from a given quantile
vdist_t_prob(2.045, 7, 'lower')

vdist_t_prob(0.945, 7, 'upper')

vdist_t_prob(1.445, 7, 'interval')

vdist_t_prob(1.6, 7, 'both')