Firework plot as a graphical exploratory data analysis tool for evaluating the impact of outliers in skewness and kurtosis of univariate data

- Journal title : Korean Journal of Applied Statistics
- Volume 29, Issue 2, 2016, pp.355-368
- Publisher : The Korean Statistical Society
- DOI : 10.5351/KJAS.2016.29.2.355

Title & Authors

Firework plot as a graphical exploratory data analysis tool for evaluating the impact of outliers in skewness and kurtosis of univariate data

Moon, Sungho;

Moon, Sungho;

Abstract

Outliers and influential data points distort many data analysis measures. Jang and Anderson-Cook (2014) proposed a graphical method called a rework plot for exploratory analysis purpose so that there could be a possible visualization of the trace of the impact of the possible outlying and/or influential data points on the univariate/bivariate data analysis and regression. They developed 3-D plot as well as pairwise plot for the appropriate measures of interest. This paper further extends their approach to identify its strength. We can use rework plots as a graphical exploratory data analysis tool to evaluate the impact of outliers in skewness and kurtosis of univariate data.

Keywords

outliers;influential data point;skewness;kurtosis;(3-D) firework plot;firework plot matrix;

Language

Korean

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