Application: Probability density functions are often used to understand the distribution and variability of a variable, while CDFs are used to calculate probabilities of specific ranges or compare ...

Donald F. Specht, Series Estimation of a Probability Density Function, Technometrics, Vol. 13, No. 2 (May, 1971), pp. 409-424 ...

D. O. Loftsgaarden, C. P. Quesenberry, A Nonparametric Estimate of a Multivariate Density Function, The Annals of Mathematical Statistics, Vol. 36, No. 3 (Jun., 1965 ...