geno_freqs_scatter: return a 'ggplot2' plot object of observed and expected...
In whoa: Evaluation of Genotyping Error in Genotype-by-Sequencing Data

return a ‘ggplot2’ plot object of observed and expected genotype freqs

1	geno_freqs_scatter(gfc, alpha = 0.2, max_plot_loci = 500)

`gfc`	a tibble like that created by exp_and_obs_geno_freqs()
`alpha`	the transparency (alpha) parameter to apply to the points in the scatterplot. Default is 0.2.
`max_plot_loci`	By default this plots only 500 loci, sampled randomly, to keep ‘ggplot2’ taking forever to plot, for example, 100K points. If you want to plot all the points, set this to a number larger than the number of single nucleotide polymorphisms (SNPs) in the data set.

# get the expected and observed geno freqs
gfreqs <- exp_and_obs_geno_freqs(lobster_buz_2000)
g <- geno_freqs_scatter(gfreqs)

# now g is a 'ggplot2' object.