The function obtain a symbolic polygonal variables from data of class 'paggregated', i.e aggregated data. For this, the researcher need to select the number of vertices.
an object of the class 'paggregated' that represents the representation of symbolic polygonal data.
the number of vertices for the polygon.
psymbolic converts data represented by center and radius representation in symbolic polygonal data. It is importat that the researcher considers a positive number for radius. Besides, the variable vertices should be greater than 2 for the number of vertices.
When the object of class 'paggregated' is composed by a vector for center and one vector for radius a simple symbolic variable is obtained.
psdata is an object of class 'polygonal-variables', i.e. an environment, where for each object in the environment is a list with the polygons(matrix with dimention l times 2, where l represents the number of vertices).
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## Obtaining a simple symbolic polygonal variable cat1 <- as.factor(sample(1:20, 1000, replace = TRUE)) cv1 <- runif(1000) #classical variable cvc1 <- data.frame(category = cat1, variable = cv1) pol1 <- paggreg(cvc1) out <- psymbolic(pol1, 6) #Hexagon out$X1 ## Obtaining three (or more) symbolic polygonal variables cat2 <- as.factor(sample(1:20, 1000, replace = TRUE)) cv2 <- matrix(runif(3000), ncol = 3) #classical variable cvc2 <- data.frame(category = cat2, cv2) pol2 <- paggreg(cvc2) out2 <- psymbolic(pol2, 8) #Octagon out2$X1 out2$X2 out2$X3
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