Data plotting¶

plot_line() - plot a line.

scatter_trend() - plot a scatter plot with a regression line.

plot_function_3d() - plot a 3D graph of a function of two variables.

plot_function_contour() - plot a contour graph of a function of two variables.

See also¶

• Matplotlib cookbook
• Matplotlib tutorial

pyteomics.pylab_aux.plot_function_3d(x, y, function, **kwargs)[source]¶

Plot values of a function of two variables in 3D.

More on 3D plotting in pylab:

http://www.scipy.org/Cookbook/Matplotlib/mplot3D

Parameters :

x, y : array_like of float The plotting range. function : function The function to plot. plot_type : {‘surface’, ‘wireframe’, ‘scatter’, ‘contour’, ‘contourf’} The type of a plot, see scipy cookbook for examples. The default value is ‘surface’. num_contours : int The number of contours to plot, 50 by default. xlabel, ylabel, zlabel : str, optional The axes labels. Empty by default. title : str, optional The title. Empty by default.

pyteomics.pylab_aux.plot_function_contour(x, y, function, **kwargs)[source]¶

Make a contour plot of a function of two variables.

Parameters :	x, y : array_like of float The positions of the nodes of a plotting grid. function : function The function to plot. filling : bool Fill contours if True (default). num_contours : int The number of contours to plot, 50 by default. xlabel, ylabel : str, optional The axes labels. Empty by default. title : str, optional The title. Empty by default.

pyteomics.pylab_aux.plot_line(a, b, **kwargs)[source]¶

Plot a line y = a * x + b.

Parameters :	a, b : float The slope and intercept of the line.

pyteomics.pylab_aux.scatter_trend(x, y, **kwargs)[source]¶

Make a scatter plot with a linear regression.

Parameters :

x, y : array_like of float plot_trend : bool, optional If True then plot a trendline. True by default. plot_sigmas : bool, optional If True then plot confidence intervals of the linear fit. False by default. title : str, optional The title. Empty by default. xlabel, ylabel : str, optional The axes labels. Empty by default. alpha : float, optional Transparency of points. 1.0 by default alpha_legend : float, optional Legend box transparency. 1.0 by default