descriptr (version 0.5.1)

dist_chi_plot: Visualize chi square distribution

Description

Visualize how changes in degrees of freedom affect the shape of the chi square distribution. Compute & visualize quantiles out of given probability and probability from a given quantile.

Usage

dist_chi_plot(df = 3, normal = FALSE)
dist_chi_perc(probs = 0.95, df = 3, type = c("lower", "upper"))
dist_chi_prob(perc, df, type = c("lower", "upper"))

Arguments

df

Degrees of freedom.

normal

If TRUE, normal curve with same mean and sd as the chi square distribution is drawn.

probs

Probability value.

type

Lower tail or upper tail.

perc

Quantile value.

Value

Percentile for the probs based on df and type or probability value for perc based on df and type.

See Also

Chisquare

Examples

# NOT RUN {
# visualize chi square distribution
dist_chi_plot()
dist_chi_plot(df = 5)
dist_chi_plot(df = 5, normal = TRUE)

# visualize quantiles out of given probability
dist_chi_perc(0.165, 8, 'upper')
dist_chi_perc(0.22, 13, 'upper')

# visualize probability from a given quantile.
dist_chi_prob(13.58, 11, 'lower')
dist_chi_prob(15.72, 13, 'upper')

# }