Plot Auto-Covariance and Correlation Functions

The function plots the output of the theo_acf and ACF functions (autocovariance or autocorrelation functions).

# S3 method for ACF
plot(x, xlab = NULL, ylab = NULL, show.ci = TRUE,
  alpha = NULL, col_ci = NULL, transparency = NULL, main = NULL,
  parValue = NULL, ...)

Arguments

x	An "ACF" object output from theo_acf or ACF.
xlab	A string indicating the label of the x axis: the default name is 'Lags'.
ylab	A string indicating the label of the y axis: the default name is 'ACF'.
show.ci	A bool indicating whether to show the confidence region. Defaults to TRUE.
alpha	A double indicating the level of significance for the confidence interval. By default alpha = 0.05 which gives a 1 - alpha = 0.95 confidence interval.
col_ci	A string that specifies the color of the region covered by the confidence intervals (confidence region).
transparency	A double between 0 and 1 indicating the transparency level of the color defined in col_ci. Defaults to 0.25.
main	A string indicating the title of the plot. Default name is "Variable name ACF plot'.
parValue	A vector defining the margins for the plot.
...	Additional parameters

Examples

# Calculate the Autocorrelation
m = auto_corr(datasets::AirPassengers)

# Plot with 95% CI
plot(m)

# Plot with 90% CI
plot(m, alpha = 0.1)

# Plot without 95% CI
plot(m, show.ci = FALSE)

# More customized CI
plot(m, xlab = "my xlab", ylab = "my ylab", show.ci = TRUE,
alpha = NULL, col_ci = "grey", transparency = 0.5, main = "my main")