Even though I read my lecture notes and PP-plots vs. QQ-plots carefully, I'm still confused.
So Probability plot is a plot of samples vs theoretical quantiles. There we can find a or some parameters when there is some 'linear' relationship.
And QQ plot is a plot of sample1 vs sample2, and sample2 can be replaced by theoretical one.
So QQ plot is a larger concept which includes Probability plot.
This is what I thought, but https://en.wikipedia.org/wiki/P%E2%80%93P_plot says that Probability plot also means the plot between two empirical datasets. And it states that these two can be confused.
So what are these???