Library: | graphic |
See also: | dispbox dispdotcl dispbarcl plotboxcl grboxcl |
Quantlet: | dispboxcl | |
Description: | generates a standard boxplot for a classified data set. |
Usage: | bp = dispboxcl(gr, fr) | |
Input: | ||
gr | m x n grid matrix, each column must be ordered ascendently | |
fr | (m-1) x n matrix of frequencies for each interval in each column | |
Output: | ||
bp | composed graphical object |
2) It generates a boxplot with median line and upper and lower edge of the box representing the upper and lower quartile. The whiskers designate the farest non-outliers above resp. below the box. Outliers are all data at least 1.5 * (height of box) away from the upper resp. lower edge of the box and are plotted as circles. If this distance exceeds 3 * (height of box), a star symbol is used ("gross outlier").
library("graphic") library("stats") randomize(666) ; make four columns each with 15 random intervals gr = sort(normal(5,4)|5+normal(5,4)|10+normal(5,4),0) gr[,3] = 10 + gr[,3] fr = ceil(30*uniform(14)~20*uniform(14,2)~2*uniform(14)) bp1 = dispboxcl(gr[,1],fr[,1]) bp2 = dispboxcl(gr,fr) db = createdisplay(1, 2) show(db, 1, 1, bp1) show(db, 1, 2, bp2)
Shows a boxplot of the first column of the data in the left output window and four boxplots are shown in the right display window.