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Everything about Probability density function

Description of continuous random distribution

In probability theory, a probability density function (PDF), density function, or simply density of an absolutely continuous random variable, is a function whose value at any given point in the sample space can be interpreted as providing a "relative probability" that the value of the random variable would be equal to that point. Probability density is the probability per unit length, in other words. The (absolute) probability for a continuous random variable to take on any particular value is zero. Therefore, the value of the PDF at two different samples can be used to infer, in any particular draw of the random variable, how much more likely it is that the random variable would be close to one point compared to the other. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Probability density functionA 5-minute orientation
  2. Skim a recent paper: Probability density function forecasting of residential electric vehicles charging profileInfluential work since 2022
  3. Pick up a classic book: Regional-scale hydrology with a new land surface processes modelThe most-reprinted book on the subject
  4. Read the landmark paper: On Estimation of a Probability Density Function and ModeCited 8,422 times
  5. Go sideways: Cumulative distribution functionA closely related topic
  6. Go sideways: Joint probability distributionA closely related topic

📖 Definitions

Noun Any function whose integral over a set gives the probability that a random variable has a value in that set.

🏆 Landmark papers (most cited)

🆕 Influential since 2022

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