nos.density {NostalgiR} | R Documentation |
nos.density text-based plot of a kernel density function.
Description
Plots a text-based of a kernel density function, with the option of plotting the location of the data points along the x-axis.
Usage
nos.density(data, xlab = NULL, ratio = 0.25, bw = "nrd0",
kernel = "gaussian", locations = T, width = round(options()$width *
0.8), height = round(ratio * width), pch = c("o", "~"))
Arguments
data |
A numeric vector containing the values to be plotted. |
xlab |
Label of the x-axis of the plot. |
ratio |
Coefficient that controls the aspect ratio of the plot. |
bw |
A numerical value or character string to specify the bandwidth used for kernel density estimation. The default setting is |
kernel |
A character string to specify the type of smoothing kernel used. The default setting is |
locations |
If |
width |
Width of the plot in points. |
height |
Height of the plot in points. |
pch |
A two dimensional vector of single-character symbols. The first symbol is for data point, and the second symbol is for the density curve. |
Note
Due to rounding to a relatively crude grid results can only be approximate. The equally spaced axis ticks, for example, may be non-equally spaced in the plot. Further, due to the crude grid also there might be several points per character. The function uses the same plotting symbol no matter how many points coincide on one character position.
Author(s)
Hien D. Nguyen
See Also
density
, plot
, txtplot
, and txtdensity
.
Examples
## Plot a kernel density function of 10 random standard normal points with
## a Gaussian kernel and with the locations of the data plotted along the x-axis.
data <- rnorm(10)
nos.density(data)
## Plot a kernel density function of 100 random stanard normal points with
## a triangular kernel and without the locations of the data plotted along the x-axis.
data <- rnorm(100)
nos.density(data,kernel='triangular',location=FALSE)