iWISA (version 1.0-2)

preindexplot: Plot Estimations of Storm Activity Preindex

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.

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)