preindexplot: Plot Estimations of Storm Activity Preindex

In iWISA: Wavelet-Based Index of Storm Activity

Description

This function is used to visualize the preindex estimation for each station. Users can specify the number of graphs per page, the default is set to 2 graphs per page.

Usage

preindexplot(x, Title = NULL, start = NULL, end = NULL,
  n.station = NULL, graphs.per.page = 2, station.names = NULL, ...)

Arguments

x	estimation of preindex from SAIndex
Title	title of preindexplot
start	start date of records for magnetic activities. See examples
end	end date of records for magnetic activities. See examples
n.station	number of stations
graphs.per.page	how many graphs combined in one plot page. Default number is 2
station.names	NULL (indicating no station names) or a vector strings for station names
...	additional arguments.

Details

This function is used to visualize the preindex. The function plots the preindex estimation from SAIndex. See example below.

Author(s)

Inga Maslova, Wen Xiao

See Also

SAIndex

Examples

## Not run: 
## data sets.
data(record)
## Colatitude and longitude of geomagnetic observatories.
coord=matrix(c(124.43, 19.23, 53.77,140.18,68.68,202.00,71.89,293.85),nrow=2,ncol=4)


## estimation of one iWISA and one preindex for each stations.
data<- SAIndex(record, coord, wf="la8")

## generate datetime for one week period
start.date="2001-3-1"
end.date="2001-4-30"

preindexplot(data, Title="Preindex of stations", start = start.date,end=end.date,
n.station=4, graphs.per.page=2, station.names=c("HER","KAK","HON","SJG"))

## End(Not run)

iWISA documentation built on May 1, 2019, 7:37 p.m.