RSEIS (version 3.5-2)

read1segy: Read one SEGY/SAC file

Description

Read one SEGY/SAC file

Usage

read1segy(fname, Iendian = 1, HEADONLY = FALSE, BIGLONG = FALSE)
read1sac(fname, Iendian = 1, HEADONLY = FALSE, BIGLONG = FALSE )

Arguments

fname

character, file name

Iendian

Endian of the input file name

HEADONLY

logical, TRUE=return only header (default=FALSE)

BIGLONG

logical, indicating whether long is 8 or 4 bytes.

Value

Details

Segy format files are in integer format. The time series ususally represents counts recorded in a data acquisition system. The header includes meta-data and other identifying information.

SAC data is stored as floats, typically volts.

See Also

write1sac, write1segy, sac2rseis, segy2rseis, prepSEIS

Examples

## Not run: 
# 
# fnames = list.files(path="/Users/lees/Site/Buf2014/ALL_SEGY",
#                                      pattern=NULL, full.names=TRUE )
# 
# for(i in 1:length(fnames))
# {
# fn1  = fnames[i]
# 
# bed =  read1segy(fn1   , Iendian = 1 , HEADONLY=TRUE, BIGLONG=FALSE)
# scaly[i] =  bed$HEAD$scale_fac
# print(paste(i, fn1, bed$HEAD$station_name , bed$HEAD$channel_name,
#        bed$HEAD$scale_fac, bed$HEAD$gainConst)  )
# 
# }
# 
# 
# ## End(Not run)