IRISSeismic (version 1.6.6)

mergeTraces: Merge multiple traces into a single trace

Description

The mergeTraces method of Stream objects returns a new Stream where all Traces have been merged into a single Trace. Gaps between traces are replaced with values determined by the fillMethod parameter.

Usage

mergeTraces(x, fillMethod)

Value

A new Stream object containing a single Trace is returned.

Arguments

x

Stream object

fillMethod

method to use when filling gaps between Traces (default="fillNA")

Author

Jonathan Callahan

Details

Available values for fillMethod include:

• fillNA -- gaps are filled with NA (R's missing value flag)

• fillZero -- gaps are filled with 0.0

Examples

if (FALSE) {
# Open a connection to IRIS DMC webservices
iris <- new("IrisClient")

starttime <- as.POSIXct("2002-04-20", tz="GMT")
endtime <- as.POSIXct("2002-04-21", tz="GMT")
st4 <- getDataselect(iris,"US","OXF","","BHZ",starttime,endtime)
stm4 <- mergeTraces(st4)

# plot merged trace
plot(stm4@traces[[1]])
mtext(paste(length(st4@traces),"traces"), side=3, line=0.5, adj=0.05, cex=1.5)      
}