plot函數屬性（轉自matplotlib）__函數

matplotlib.pyplot. plot ( *args,  **kwargs )

Plot lines and/or markers to the Axes. args is a variable length argument, allowing for multiple x, y pairs with an optional format string. For example, each of the following is legal:

plot(x, y)         # plot x and y using default line style and colorplot(x, y, 'bo')   # plot x and y using blue circle markersplot(y)            # plot y using x as index array 0..N-1plot(y, 'r+')      # ditto, but with red plusses

If x and/or y is 2-dimensional, then the corresponding columns will be plotted.

An arbitrary number of x, y, fmt groups can be specified, as in:

a.plot(x1, y1, 'g^', x2, y2, 'g-')

Return value is a list of lines that were added.

By default, each line is assigned a different color specified by a ‘color cycle’. To change this behavior, you can edit the axes.color_cycle rcParam. Alternatively, you can use set_default_color_cycle().

The following format string characters are accepted to control the line style or marker:

character	description
'-'	solid line style
'--'	dashed line style
'-.'	dash-dot line style
':'	dotted line style
'.'	point marker
','	pixel marker
'o'	circle marker
'v'	triangle_down marker
'^'	triangle_up marker
'<'	triangle_left marker
'>'	triangle_right marker
'1'	tri_down marker
'2'	tri_up marker
'3'	tri_left marker
'4'	tri_right marker
's'	square marker
'p'	pentagon marker
'*'	star marker
'h'	hexagon1 marker
'H'	hexagon2 marker
'+'	plus marker
'x'	x marker
'D'	diamond marker
'd'	thin_diamond marker
'|'	vline marker
'_'	hline marker

The following color abbreviations are supported:

character	color
‘b’	blue
‘g’	green
‘r’	red
‘c’	cyan
‘m’	magenta
‘y’	yellow
‘k’	black
‘w’	white

In addition, you can specify colors in many weird and wonderful ways, including full names ('green'), hex strings ('#008000'), RGB or RGBA tuples ((0,1,0,1)) or grayscale intensities as a string ('0.8'). Of these, the string specifications can be used in place of a fmt group, but the tuple forms can be used only as kwargs.

Line styles and colors are combined in a single format string, as in 'bo' for blue circles.

The kwargs can be used to set line properties (any property that has a set_* method). You can use this to set a line label (for auto legends), linewidth, anitialising, marker face color, etc. Here is an example:

plot([1,2,3], [1,2,3], 'go-', label='line 1', linewidth=2)plot([1,2,3], [1,4,9], 'rs',  label='line 2')axis([0, 4, 0, 10])legend()

If you make multiple lines with one plot command, the kwargs apply to all those lines, e.g.:

plot(x1, y1, x2, y2, antialised=False)

Neither line will be antialiased.

You do not need to use format strings, which are just abbreviations. All of the line properties can be controlled by keyword arguments. For example, you can set the color, marker, linestyle, and markercolor with:

plot(x, y, color='green', linestyle='dashed', marker='o',     markerfacecolor='blue', markersize=12).

See