Plots a Normal distribution

Usage

plot_norm(
  mean = 0,
  sd = 1,
  from = NULL,
  to = NULL,
  n = 1000,
  add = FALSE,
  type = "l",
  xlab = expression(X),
  ylab = "Probability Density",
  xlim = NULL,
  ...
)

Arguments

mean: the mean of the distribution.
sd: the standard deviation of the distribution.
from: the starting x-value for the plot. If NULL, it will be set to -5 sd from the mean.
to: the ending x-value for the plot. If NULL, it will be set to the mean plus 5 sd.
n: the number of points to use in the plot. Default is 1000.
add: whether to add the curve to an existing plot (TRUE) or create a new plot (FALSE). Default is FALSE.
type: the type of plot to create. Default is "l" for a line plot.
xlab: the label for the x-axis. Default is expression(chi^2).
ylab: the label for the y-axis. Default is "Probability Density".
xlim: the limits for the x-axis. If NULL, it will be set to c(from, to).
...: additional arguments to be passed to the curve function.

Examples

plot_norm()


set.seed(200)
hist(rnorm(200, 100, 15), prob = TRUE)
plot_norm(100, 15, add = TRUE, col = "blue", lwd = 2)