Add key-value pairs to d only if key is not in d. If d is None, create a new dictionary. d: dictionary options: keyword args to add to d

Transforms to the time domain. returns: Wave

Plots the wave.

Normalizes a wave array so the maximum amplitude is +amp or -amp. ys: wave array amp: max amplitude (pos or neg) in result returns: wave

Shifts a wave array so it has mean 0. ys: wave array returns: wave array

Makes a copy. Returns: new Wave

Makes a cosine Sinusoid. freq: float frequency in Hz amp: float amplitude, 1.0 is nominal max offset: float phase offset in radians

Closes the file. duration: how many seconds of silence to append

Find the index corresponding to a given value in an array.

Writes a wave. wave: Wave

If color is not in the options, chooses a color.

Computes the cumulative sum of the elements. returns: new Wave

Clears the figure and any hints that have been set.

Configures the plot. Pulls options out of the option dictionary and passes them to the corresponding plt functions.

Initializes the color iterator with the given number of colors.

Plots a line. Args: obj: sequence of x values, or Series, or anything with Render() ys: sequence of y values style: style strin

Returns an arbitrary spectrum from the spectrogram.

Tapers the amplitude at the beginning and end of the signal. Tapers either the given duration of time or the given fraction of the to

Covariance of two unbiased waves. other: Wave returns: float

Computes the difference between successive elements. returns: new Wave

Evaluates the signal at the given times. ts: float array of times returns: float wave array

Find the index corresponding to a given time.

Computes the spectrum using FFT. returns: Spectrum

Sets the color iterator to None.

Returns an iterator of color strings. n: how many colors will be used

Helper function that evaluates the signal. ts: float array of times freqs: float array of frequencies during each interval

Convolves two waves. Note: this operation ignores the timestamps; the result has the timestamps of self. other: Wave or NumP

Makes a copy. Returns: new Spectrum

Makes a cosine wave with the given parameters. freq: float cycles per second duration: float seconds offset: float radians returns:

Apply a Hamming window to the wave.

Make a MIDI note with the given duration. midi_num: int MIDI note number duration: float seconds sig_cons: Signal constructor function

Converts MIDI note number to frequency. midi_num: int MIDI note number returns: float frequency in Hz

Normalizes the signal to the given amplitude. amp: float amplitude

Extracts amps and fs from a full spectrum. high: cutoff frequency returns: fs, amps

Makes a slice from a Wave. i: first slice index j: second slice index

Trims a wave array to the given length. ys: wave array n: integer length returns: wave array

Apply a window to the wave. window: sequence of multipliers, same length as self.ys

Plots a line. Args: xs: sequence of x values ys: sequence of y values options: keyword args passed to plt.bar

Plots a CDF as a line. Args: cdf: Cdf object complement: boolean, whether to plot the complementary CDF transform: string, one

Gets the color iterator.

Plots a Pmf or Hist with a bar plot. The default width of the bars is based on the minimum difference between values in the Hist. If that's

Plots a Pdf, Pmf, or Hist as a line. Args: pdf: Pdf, Pmf, or Hist object options: keyword args passed to plt.plot

Shows the plot. For options, see Config. options: keyword args used to invoke various plt functions

Plots a Pmf or Hist as a line. Args: pmf: Hist or Pmf object options: keyword args passed to plt.plot

Writes the current figure to a file in the given format. Args: root: string filename root fmt: string format

Makes a sine Sinusoid. freq: float frequency in Hz amp: float amplitude, 1.0 is nominal max offset: float phase offset in radians

Tapers the amplitude at the beginning and end of the signal. Tapers either the given duration of time or the given fraction of the total dura

Clean up temporary audio files

Clean up uploaded videos

Clean up temporary frames and uploaded file

Covariance with a cosine signal. freq: freq of the cosine signal in Hz returns: float covariance

Returns the frames where blinks occured

Sequence of frequencies. returns: sequence of float freqencies in Hz.

Computes the magnitude of a numpy array. a: numpy array returns: float

Make a chord with the given duration. midi_nums: sequence of int MIDI note numbers duration: float seconds sig_cons: Signal constructor f

Makes a Wave object. duration: float seconds start: float seconds framerate: int frames per second returns: Wave

Micro expressions happen in 1/25th of a second or 15 frames Microexpression_analyzer: Function parameters: **emotions: A di

Apply a filter that would make white noise pink. beta: exponent of the pink noise

Plays a wave file. filename: string player: string name of executable that plays wav files

Machine Learning Lie Prediction Function

Maps the waveform to quanta. ys: wave array bound: maximum amplitude dtype: numpy data type of the result returns: quantized signal

Maps the waveform to quanta. bound: maximum amplitude dtype: numpy data type or string returns: quantized signal

Makes a rest of the given duration. duration: float seconds returns: Wave

Extracts a segment. start: float start time in seconds duration: float duration in seconds returns: Wave

Makes a sine wave with the given parameters. freq: float cycles per second duration: float seconds offset: float radians returns: Wa

Sorted sequence of times. returns: sequence of float times in seconds

Unbiases the signal.

Write a wave file. filename: string

Extends an array with zeros. array: numpy array n: length of result returns: new NumPy array

Plots a sequence of CDFs. cdfs: sequence of CDF objects complement: boolean, whether to plot the complementary CDF transform: string,

Returns the list of colors.

Makes a contour plot. d: map from (x, y) to z, or object that provides GetDict pcolor: boolean, whether to make a pseudocolor plot co

Compute the differences between adjacent elements in a sequence. Args: t: sequence of number Returns: sequence of difference

Sets options for the current figure.

Fills the space between two lines. Args: xs: sequence of x values y1: sequence of y values y2: sequence of y values where

Makes a scatter plot. xs: x values ys: y values options: options passed to plt.scatter

Plots two histograms as interleaved bar plots. Options are passed along for all PMFs. If you want different options for each pmf, make multi

Plots a set of horizontal lines. Args: ys: sequence of y values x1: sequence of x values x2: sequence of x values options

Makes a pseudocolor plot. xs: ys: zs: pcolor: boolean, whether to make a pseudocolor plot contour: boolean, whether to make a

Plots a sequence of PDFs. Options are passed along for all PDFs. If you want different options for each pdf, make multiple calls to Pdf.

Plots a sequence of PMFs. Options are passed along for all PMFs. If you want different options for each pmf, make multiple calls to Pmf.

Takes hints about what's coming. num: number of lines that will be plotted rows: number of rows of subplots cols: number of columns of su

Saves the plot in the given formats and clears the figure. For options, see Config. Args: root: string filename root formats: li

Makes a scatter plot. xs: x values ys: y values options: options passed to plt.scatter

Shows the plot. For options, see Config. options: keyword args used to invoke various plt functions

Makes a Sinc function. freq: float frequency in Hz amp: float amplitude, 1.0 is nominal max offset: float phase offset in radians

Configures the number of subplots and changes the current plot. rows: int cols: int plot_number: int options: passed to subplot

Puts text in a figure. x: number y: number s: string options: keyword args passed to plt.text

Plots a set of vertical lines. Args: xs: sequence of x values y1: sequence of y values y2: sequence of y values options:

Adds two spectrums elementwise. other: Spectrum returns: new Spectrum

Adds two DCTs elementwise. other: DCT returns: new DCT