Star plots is a way of showing multivariate data in the form of a 2-D chart of 3 or more quantitative variables which are represented on axes starting from the same point.
Similarity matrix is a matrix of scores that show the similarity between 2 data points. This is a similarity matrix of 2 photo indexes. The blue are not similar whereas the red is the most similiar.
Stem and Leaf Plots keeps the original data to at least 2 digits and puts said data in order. The right side is the stem and the left side is the leaves.
Box plots show groups of data through the 5 summaries: smallest observation (sample minimum); lower quartile (Q1); median (Q2), upper quartile (Q3) and largest observation (sample maximum).
Histograms show frequencies shown as bars. It shows what proportion of cases falle into each of several categories. This histogram shows the number of employees to the their salary.