MetFns (version 1.0)

filter.sol: Selection of visual meteor data by solar longitude

Description

Selects data for a given visual meteor dataset and specified solar longitude or interval of solar longitudes.

Usage

filter.sol(data, sol.low = 0, sol.up = 359.999)

Arguments

data

data frame consisting of visual meteor data (rate or magnitude data).

sol.low

numeric vector with value between 0 (default) and 359.999, specifying lower boundary of solar longitude in degrees.

sol.up

numeric vector with value between 0 and 359.999 (dafault), specifying upper boundary of solar longitude in degrees.

Value

• filter.sol returns data frame with the same number of columns as the argument data, containing observations with solar longitudes between sol.low and sol.up.

References

http://www.imo.net/data/visual Rendtel J. and Arlt R., editors (2008). IMO Handbook For Meteor Observers. IMO, Potsdam.

See Also

filter,solar.long

Examples

## select visual meteor data for 2005. with solar longitudes between 200 and 215 degrees

## rate data for the year 2005
require(astroFns)
data(rate05)
filter.sol(rate05,sol.low=200,sol.up=215)

## magnitude data for the year 2005
data(magn05)
filter.sol(magn05,sol.low=200,sol.up=215)