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normpdf

Probability density function for normal distribution

normpdf(x)

  • It returns the PDF of the standard normal distribution evaluated at elements of x.

normpdf(x,mu)

  • The input arrays mu and x should have the same sizes. They contain, respectively, means of the PDFs being evaluated, and x values at which the PDFs are evaluated. The standard deviations are assumed to be 1.
  • If one of the inputs is a scalar, it would be expanded to match the size of the other input.

normpdf(x, mu, sigma)

  • The input arrays mu, sigma and x should have the same sizes. They contain, respectively, means and standard deviations of the PDFs being evaluated, and x values at which the PDFs are evaluated.
  • If one of the inputs is a scalar, it would be expanded to match the size of the other input.
  • It returns NaN for negative elements of sigma.