matplotlib.pyplot.axvline

matplotlib.pyplot.axvline(x=0, ymin=0, ymax=1, **kwargs) [source]

Add a vertical line across the Axes.

Parameters:	xfloat, default: 0 x position in data coordinates of the vertical line. yminfloat, default: 0 Should be between 0 and 1, 0 being the bottom of the plot, 1 the top of the plot. ymaxfloat, default: 1 Should be between 0 and 1, 0 being the bottom of the plot, 1 the top of the plot.
Returns:	Line2D
Other Parameters:	**kwargs Valid keyword arguments are Line2D properties, with the exception of 'transform': Property Description agg_filter a filter function, which takes a (m, n, 3) float array and a dpi value, and returns a (m, n, 3) array alpha scalar or None animated bool antialiased or aa bool clip_box Bbox clip_on bool clip_path Patch or (Path, Transform) or None color or c color contains unknown dash_capstyle CapStyle or {'butt', 'projecting', 'round'} dash_joinstyle JoinStyle or {'miter', 'round', 'bevel'} dashes sequence of floats (on/off ink in points) or (None, None) data (2, N) array or two 1D arrays drawstyle or ds {'default', 'steps', 'steps-pre', 'steps-mid', 'steps-post'}, default: 'default' figure Figure fillstyle {'full', 'left', 'right', 'bottom', 'top', 'none'} gid str in_layout bool label object linestyle or ls {'-', '--', '-.', ':', '', (offset, on-off-seq), ...} linewidth or lw float marker marker style string, Path or MarkerStyle markeredgecolor or mec color markeredgewidth or mew float markerfacecolor or mfc color markerfacecoloralt or mfcalt color markersize or ms float markevery None or int or (int, int) or slice or list[int] or float or (float, float) or list[bool] path_effects AbstractPathEffect picker float or callable[[Artist, Event], tuple[bool, dict]] pickradius float rasterized bool sketch_params (scale: float, length: float, randomness: float) snap bool or None solid_capstyle CapStyle or {'butt', 'projecting', 'round'} solid_joinstyle JoinStyle or {'miter', 'round', 'bevel'} transform matplotlib.transforms.Transform url str visible bool xdata 1D array ydata 1D array zorder float

See also

vlines

Add vertical lines in data coordinates.

axvspan

Add a vertical span (rectangle) across the axis.

axline

Add a line with an arbitrary slope.

Examples

• draw a thick red vline at x = 0 that spans the yrange:

  >>> axvline(linewidth=4, color='r')
  

• draw a default vline at x = 1 that spans the yrange:

  >>> axvline(x=1)
  

• draw a default vline at x = .5 that spans the middle half of the yrange:

  >>> axvline(x=.5, ymin=0.25, ymax=0.75)
  

Examples using matplotlib.pyplot.axvline