Compute the Box–Pierce or Ljung–Box test statistic for examining the null hypothesis of independence in a given time series. These are sometimes known as ‘portmanteau’ tests.
ljung_box(x, lag = 1, dof = 0, ...) box_pierce(x, lag = 1, dof = 0, ...) portmanteau_tests
A numeric vector
The number of lag autocorrelation coefficients to use in calculating the statistic
Degrees of freedom of the fitted model (useful if x is a series of residuals).
An object of class
list of length 2.