From PapcoWiki

Contents 1 New Spectrogram Routine 1.1 Motivation 1.2 Specification 1.3 Implementation

New Spectrogram Routine

Motivation

Use dataset operators to create a spectrogram routine. Advantages:

• This will be smaller, since dataset operators do the heavy work. Smaller means improved reliability and serviceability.
• more describable, since the dataset operator vocabulary is used.
• faster, since fast dataset operators are used.

Specification

• works transparently between PS and screen devices
• support replace this number with color functionality of legacy plot_color.
• support all the legacy keywords.
• all valid measurements should influence the result
• when pixel resolution is as fine as data resolution, individual measurements should be visible.

Implementation

The general idea is to use papco_ds_grid to create a integer multiple grid of the screen resolution. Then papco_ds_rebin is used to do the reduction. This will be very fast, but at a higher memory cost. (Memory is cheap now.)