User Guide# Data structures Time Series data The TimeSeries Associated classes Reading/writing time series data Plotting time series data Reference/API The FrequencySeries class Generating a FrequencySeries from a TimeSeries Reading/writing frequency-domain data Plotting a FrequencySeries FrequencySeries applications The Spectrogram Calculating a Spectrogram from a TimeSeries Plotting a Spectrogram Spectrogram applications Reference/API State vectors The StateTimeSeries Multi-bit state-vectors Plotting a StateVector Associated classes Reference/API Data-quality segments The Segment and SegmentList classes The DataQualityFlag class Combining DataQualityFlags The DataQualityDict Working with segments Reference/API Data tables The EventTable Reading/writing tables Using tables Plotting tables Data manipulation Signal processing Spectral density estimation Time-domain filtering Frequency-domain filtering Filter design Cross-channel correlations Visualising data Plotting in GWpy (gwpy.plot) Basic plotting Plot customisation Plot applications Command line plotting with GWpy Specifying input data Interactive mode Examples Other utilities The Channel class Times and timestamps Astrophysical modelling Logging with GWpy Configuring GWpy from the environment Creating reduced datasets with GWpy Converting GPS times with GWpy