NAME¶

lalfr-fmt -- formats multicolumn text files into channels in a frame file

SYNOPSIS¶

lalfr-fmt [file ...]

DESCRIPTION¶

The lalfr-fmt utility reads each multicolumn input file file and formats the columns into different channels that are output as a frame file to the standard output. The file operands are processed in command-line order. If file is a single dash (`-') or absent, lalfr-fmt reads from the standard input.

If file contains only one column of data, each row is interpreted as a sample of a single channel having a sample rate of 16384 Hz. If there are more than one column in file then the first column is interpreted as the GPS time of each sample. The remaining columns then describe the samples for separate channels. The output channels are named ``C01'', ``C02'', etc.

If the first line of file begins with the `#' character followed tab-separated list of column names with units in parentheses then these are used for the channel names and the sample units.

EXAMPLES¶

The command:

produces a frame file file.gwf containing four channels named C01, C02, C03, and C04, each with a sample rate of 10 Hz.

The command:

produces a frame file noise.gwf containing 64 seconds of simulated aLIGO noise.

SEE ALSO¶

lalfr-print(1)

AUTHOR¶

Jolien Creighton