R: Make Filter Stamp

filterstamp {RSEIS} | R Documentation

## Make Filter Stamp

### Description

Create an text stamp describing a filter

### Usage

    filterstamp(fl=1/2, fh=10, type="BP")

### Arguments

`fl` | vector, low frequency
`fh` | vector,high frequency
`type` | vector,type of filter

### Details

If the frequency is less than 1, the period is displayed. For now only 3 digits are displayed. If the first argument, fl, is a list the parameters are extracted from the list and the other arguments are ignored.

### Value

`stamps` | text strings

### Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

### See Also

FILT.spread

### Examples

    fl <- c(0.01, 2)
    fh <- c(10, 20)
    type <- "BP"
    filterstamp(fl, fh, type)

    FILT<-list(ON=TRUE, fl=1/2, fh=12, type="HP", proto="BU")
    filterstamp(FILT)

    FILT<-list(ON=TRUE, fl=1/2, fh=12, type="BP", proto="BU")
    filterstamp(FILT)

    FILT<-list(ON=TRUE, fl=1/2, fh=12, type="LP", proto="BU")
    filterstamp(FILT)

[Package RSEIS version 3.7-4 Index]