Cannot use the scale and shape arguments of dist_gamma() because rate argument must be supplied

[gavinsimpson]

It does not appear possible to use dist_gamma() with the shape and scale parameterisation of the Gamma distribution; the rate argument must always be provided.

library("distributional")
dist_gamma(shape = 2, scale = 0.5)
#> Error in dist_gamma(shape = 2, scale = 0.5): argument "rate" is missing, with no default
dist_gamma(shape = 2, rate = 1 / 0.5)
#> <distribution[1]>
#> [1] Γ(2, 2)
dist_gamma(shape = 2, rate = 1 / 2, scale = 2)
#> <distribution[1]>
#> [1] Γ(2, 0.5)
dist_gamma(shape = 2, scale = 2, rate = 1 / 2)
#> <distribution[1]>
#> [1] Γ(2, 0.5)

^{Created on 2025-01-03 with reprex v2.1.1}

Expected behaviour would be that the scale argument could be used as an alternative in a manner similar to stats::rgamma.

[mitchelloharawild]

Fixed, thanks.