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+# Chapter 4.3 (Cumulative Distribution Function)
+
+## CDF of a Gaussian mixture
+
+# R code to generate the PDF and CDF
+x = seq(-5, 10, (15)/1500)
+f = dunif(x, -3, 4)
+F = punif(x, -3, 4)
+plot(x, f, type="n")
+lines(x, f, lwd=5)
+plot(x, F, type="n")
+lines(x, F, lwd=5)