matplotlib.pyplot.plot()

matplotlib.pyplot.plot()是matplotlib庫中的一個函數，plot有繪圖之意，py是python的簡寫。

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

    下面是plot函數得兩種形式，plot把x與y畫成線，或者標記（Plot y versus x as lines and/or markers），第二種形式在一個圖中要畫出多條線的話可以用，同樣也可以重複使用形式一達到目的

plot([x], y, [fmt], data=None, **kwargs)
plot([x], y, [fmt], [x2], y2, [fmt2], ..., **kwargs)其中可以缺少x的數據，會自動以自然數的形式補齊（0,1......n）

1.輸入數據類型

    （1）x 和 y 都是一維列表或數組；

    （2）x 是n*1數組或列表，y是一維長度爲n的數組或列表；

    （3）x是m*n數組或列表，y是m*1列表或數組。如下例子，畫出的圖如下。

會產生20個點，十對。

x = [[-0.07816532  0.05068012  0.07786339  0.05285819  0.07823631  0.0644473
   0.02655027 -0.00259226  0.04067226 -0.00936191]
 [ 0.0090156   0.05068012 -0.03961813  0.0287581   0.03833367  0.0735286

  -0.07285395  0.1081111   0.01556684 -0.04664087]]

y = [ 201.12401963  150.05917612]

matplotlib.pyplot.plot(x,y)

2.fmt是shortcut string notation ，其形式爲 

    fmt = '[color][marker][line]'，顏色，點標記類型，畫線類型。

    （1）顏色表：

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

    （2）點類型

character	description
'.'	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

    （3）線條類型

character	description
'-'	solid line style
'--'	dashed line style
'-.'	dash-dot line style
':'	dotted line style

3.**kwargs包含fmt，如果即在fmt中定義了，然後又重複在**kwargs中定義，那麼以**kwargs爲準。

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	float (0.0 transparent through 1.0 opaque)
animated	bool
antialiased or aa	bool
clip_box	a Bbox instance
clip_on	bool
clip_path	[(Path, Transform) | Patch | None]
color or c	any matplotlib color
contains	a callable function
dash_capstyle	[‘butt’ | ‘round’ | ‘projecting’]
dash_joinstyle	[‘miter’ | ‘round’ | ‘bevel’]
dashes	sequence of on/off ink in points
drawstyle	[‘default’ | ‘steps’ | ‘steps-pre’ | ‘steps-mid’ | ‘steps-post’]
figure	a Figure instance
fillstyle	[‘full’ | ‘left’ | ‘right’ | ‘bottom’ | ‘top’ | ‘none’]
gid	an id string
label	object
linestyle or ls	[‘solid’ | ‘dashed’, ‘dashdot’, ‘dotted’ | (offset, on-off-dash-seq) | '-' | '--' | '-.' | ':' | 'None' | ' ' | '']
linewidth or lw	float value in points
marker	A valid marker style
markeredgecolor or mec	any matplotlib color
markeredgewidth or mew	float value in points
markerfacecolor or mfc	any matplotlib color
markerfacecoloralt or mfcalt	any matplotlib color
markersize or ms	float
markevery	[None | int | length-2 tuple of int | slice | list/array of int | float | length-2 tuple of float]
path_effects	AbstractPathEffect
picker	float distance in points or callable pick function fn(artist,event)
pickradius	float distance in points
rasterized	bool or None
sketch_params	(scale: float, length: float, randomness: float)
snap	bool or None
solid_capstyle	[‘butt’ | ‘round’ | ‘projecting’]
solid_joinstyle	[‘miter’ | ‘round’ | ‘bevel’]
transform	a matplotlib.transforms.Transform instance
url	a url string
visible	bool
xdata	1D array
ydata	1D array
zorder	float