imputeTS (version 1.5)

plotNA.gapsize: Visualize Distribution of NA gapsizes

Description

Visualize Distribution of NA gapsizes(NAs in a row) in a time series

Usage

plotNA.gapsize(x, limit = 10, byTotalNA = F, legend = T,
  col = c("indianred", "steelblue"),
  xlab = "Ranking of the different gapsizes", ylab = "Number",
  main = "Occurance of  gapsizes (NAs in a row)", cex.names = 0.7,
  horiz = F, axes = T, beside = T, las = 1, ...)

Arguments

x

Numeric Vector (vector) or Time Series (ts) object containing NAs

limit

Specifies how many of the top gapsizes are shown in the plot.

byTotalNA

For byTotalNA = TRUE the top gapsizes according to their overall weight are shown. (occurence * gapsize) For byTotalNA = FALSE the top gapsizes are shown by their number of occurence. (occurence)

legend

If TRUE a legend is shown at the bottom of the plot. A custom legend can be obtained by setting this parameter to FALSE and using legend function

col

A vector of colors for the bars or bar components.

xlab

Label for x axis of the plot

ylab

Label for y axis of plot

main

Main title for the plot

cex.names

Expansion factor for axis names (bar labels).

horiz

A logical value. If FALSE, the bars are drawn vertically with the first bar to the left. If TRUE, the bars are drawn horizontally with the first at the bottom.

axes

Logical. If TRUE, a vertical (or horizontal, if horiz is true) axis is drawn.

beside

A logical value. If FALSE, the columns of height are portrayed as stacked bars, and if TRUE the columns are portrayed as juxtaposed bars.

las

Numeric in {0,1,2,3}; the style of axis labels. 0:always parallel to the axis, 1:always horizontal, 2:always perpendicular to the axis, 3:always vertical.

...

Additional graphical parameters that can be passed through to barplot

Details

This plotting function can be used to visualize the length of the NA gaps(NAs in a row) in a time series. It shows a ranking of which gapsizes occur most often. This ranking can be ordered by total NAs for this gapsize (occurence * gap length) or by occurence of the gapsize. The outcome will be somethink like in the time series 2NAs in a row occured 27times, 4NAs in a row occured 11 times, 7NAs in a row occured 5 times, 1NA in a row occured 3 times,... .

See Also

plotNA.distribution,plotNA.distributionBar, plotNA.imputations

Examples

#Prerequisite: Load a time series with missing values
x <-tsNH4

#Example 1: Visualize the top gapsizes
plotNA.gapsize(x)