2014年5月28日 · A P-P plot compares the empirical cumulative distribution function of a data set with a specified theoretical cumulative distribution function F(·). A Q-Q plot compares the …

2012年3月19日 · Traditionally P-P plot is done as follows. On Y axis , expected cumulative probabilities of the theoretical distribution of your choice are plotted, corresponding to your …

2016年11月26日 · I'm mainly confused on exactly what the x and y values are supposed to be within a P-P plot. The problem I'm given is as follows: If the following data are hypothesized to …

2022年8月15日 · Aside: In the second QQ plot (with better scaling) we see that the sample has a heavier right tail than the Normal and is somewhat skewed. There are a lot of points in this QQ …

2019年11月14日 · In your plot errors seem to have different variability at the beginning of the plot then in the end so I would say there is heteroskedasticity there. Probability-probability (p-p) …

2017年6月30日 · I'd summarize usage as (a) probability plot is a broad term which covers all these cases and some more; (b) Q-Q plots is a strict term and implies quantiles on both axes …

2015年1月25日 · An S-shape P-P plot indicates that the distribution has the correct median. The "flattening" of the S means that the distribution has tails that are about as long as those of the …

2017年5月9日 · I also have another question. To prove that the residues follow a normal distribution, I have to do the normal Q-Q test and the normal P-P test. In the case of the …

If a p-value deviates from the expected distribution one "may" call that p-value for statistic significant. As you can see in the QQ-plot, at the top tail end, the last 4 points are somewhat …

2017年4月19日 · I'm doing a stats assignment and for one of the questions I need to make a judgement of whether there is skew and kurtosis from a p-p plot in SPSS. I've been over the …