Coherently adds time series data dedispersed from different frequency bands of a spectrometer. The time series files must be input in decreasing frequency order. The data files should be in the SIGPROC .tim format.

For best results, use with .tim files created using yapp_dedisperse.

Usage:

• -h or --help: Display this usage information.
• -n or --nsamp samples: Number of time samples read in one block (default is 4096 samples).
• -g or --graphics: Turn on plotting.
• -i or --invert: Invert background and foreground colours in plots (default is white on black).
• -e or --non-interactive: Run in non-interactive mode.
• -v or --version: Display the version.

Example:

Adds the time series in data0.tim, data1.tim, and data2.tim (assuming decreasing frequency order), with graphics not turned on. The output is written to data0.sum.tim.