图的存在，让数据变得形象化。无论多么复杂的东西，都是简单的组合。
plot画图时可以设定线条参数。包括：颜色、线型、标记风格。
1）控制颜色
颜色之间的对应关系为
b---blue c---cyan g---green k----black
m---magenta r---red w---white y----yellow
有三种表示颜色的方式:
a:用全名 b:16进制如：#FF00FF c：RGB或RGBA元组（1,1,1） d：灰度强度如：‘0.7’
2)控制线型
符号和线型之间的对应关系
- 实线
-- 短线
-. 短点相间线
： 虚点线
<pre >>>>import matplotlib
from pylab import *
help(plot)
Help on function plot in module matplotlib.pyplot:
plot(*args,*kwargs)
Plot lines and/or markers to the
:class:~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.axes.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 color
plot(x,y,'bo') # plot x and y using blue circle markers
plot(y) # plot y using x as index array 0..N-1
plot(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.
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' triup marker
'3' trileft 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 '|' v<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne marker '_' h<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne marker ================ =============================== The f<a href="https://m.jb51.cc/tag/ol/" target="_blank" >ol</a>lowing <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a> abbreviations are supported: ========== ======== ch<a href="https://www.jb51.cc/tag/ara/" target="_blank" >ara</a>cter <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a> ========== ======== 'b' blue 'g' green 'r' red 'c' cyan 'm' <a href="https://www.jb51.cc/tag/magenta/" target="_blank" >magenta</a> 'y' yellow 'k' black 'w' white ========== ======== In addition,you can specify <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>s in many weird and wonderf<a href="https://m.jb51.cc/tag/ul/" target="_blank" >ul</a> ways,including f<a href="https://m.jb51.cc/tag/ul/" target="_blank" >ul</a>l <a href="https://m.jb51.cc/tag/name/" target="_blank" >name</a>s ('green'),hex strings ('#008000'),RGB or RGBA tuples ((0,1)) or grayscale intensit<a href="https://m.jb51.cc/tag/IE/" target="_blank" >IE</a>s as a string ('0.8'). Of these,the string specifications can be used in place of afmtgroup, but the tuple forms can be used only askwargs. <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne styles and <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>s are combined in a single format string,as in 'bo'for blue circles. The *<a href="https://www.jb51.cc/tag/kwargs/" target="_blank" >kwargs</a>* can be used to set <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne propert<a href="https://m.jb51.cc/tag/IE/" target="_blank" >IE</a>s (any property that has aset_*method). You can use this to set a <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne label (for <a href="https://m.jb51.cc/tag/auto/" target="_blank" >auto</a> legends),<a href="https://www.jb51.cc/tag/linewidth/" target="_blank" >linewidth</a>,anitia<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>sing,marker face <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>,etc. Here is an example:: plot([1,2,3],[1,'go-',label='<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne 1',<a href="https://www.jb51.cc/tag/linewidth/" target="_blank" >linewidth</a>=2) plot([1,4,9],'rs', label='<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne 2') axis([0,10]) legend() If you make m<a href="https://m.jb51.cc/tag/ul/" target="_blank" >ul</a>tiple <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a> with one plot command,the <a href="https://www.jb51.cc/tag/kwargs/" target="_blank" >kwargs</a> apply to all those <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>,e.g.:: plot(x1,antia<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>sed=False) Neither <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne will be antia<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ased. You do not need to use format strings,which are just abbreviations. All of the <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne propert<a href="https://m.jb51.cc/tag/IE/" target="_blank" >IE</a>s can be contr<a href="https://m.jb51.cc/tag/ol/" target="_blank" >ol</a>led by keyword arguments. For example,you can set the <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>, marker,<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>tyle,and marker<a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a> with:: plot(x,<a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>='green',<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>tyle='dashed',marker='o', markerface<a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a>='blue',markersize=12). See :class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>.<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne2D` for details. The <a href="https://www.jb51.cc/tag/kwargs/" target="_blank" >kwargs</a> are :class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>.<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ne2D` propert<a href="https://m.jb51.cc/tag/IE/" target="_blank" >IE</a>s: agg_filter: unk<a href="https://www.jb51.cc/tag/Now/" target="_blank" >Now</a>n <a href="https://m.jb51.cc/tag/Alpha/" target="_blank" >Alpha</a>: <a href="https://m.jb51.cc/tag/float/" target="_blank" >float</a> (0.0 <a href="https://m.jb51.cc/tag/transparent/" target="_blank" >transparent</a> through 1.0 opaque) animated: [True | False] antia<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>ased or aa: [True | False] axes: an :class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.axes.Axes` instance c<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>p_<a href="https://www.jb51.cc/tag/Box/" target="_blank" >Box</a>: a :class:`matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://m.jb51.cc/tag/transform/" target="_blank" >transform</a>s.B<a href="https://www.jb51.cc/tag/Box/" target="_blank" >Box</a>` instance c<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>p_on: [True | False] c<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>p_path: [ (:class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.path.Path`, :class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://m.jb51.cc/tag/transform/" target="_blank" >transform</a>s.<a href="https://m.jb51.cc/tag/transform/" target="_blank" >transform</a>`) | :class:`~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.patches.Patch` | None ] <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a> or c: any matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b <a href="https://m.jb51.cc/tag/color/" target="_blank" >color</a> contains: a callable function dash_capstyle: ['butt' | 'round' | 'projecting'] dash_joinstyle: ['miter' | 'round' | 'bevel'] dashes: sequence of on/off ink in points data: 2D array (rows are x,y) or two 1D arrays drawstyle: [ 'defa<a href="https://m.jb51.cc/tag/ul/" target="_blank" >ul</a>t' | 'steps' | 'steps-pre' | 'steps-m<a href="https://m.jb51.cc/tag/ID/" target="_blank" >ID</a>' | 'steps-post' ] <a href="https://www.jb51.cc/tag/fig/" target="_blank" >fig</a>ure: a :class:`matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://www.jb51.cc/tag/fig/" target="_blank" >fig</a>ure.<a href="https://www.jb51.cc/tag/fig/" target="_blank" >fig</a>ure` instance fillstyle: ['f<a href="https://m.jb51.cc/tag/ul/" target="_blank" >ul</a>l' | '<a href="https://m.jb51.cc/tag/left/" target="_blank" >left</a>' | 'right' | 'b<a href="https://www.jb51.cc/tag/ott/" target="_blank" >ott</a>om' | '<a href="https://m.jb51.cc/tag/top/" target="_blank" >top</a>'] g<a href="https://m.jb51.cc/tag/ID/" target="_blank" >ID</a>: an <a href="https://m.jb51.cc/tag/ID/" target="_blank" >ID</a> string label: any string <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>tyle or ls: ['-'|'--'|'-.'|':'|'None'|' '|''] and any drawstyle in combination with a <a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a><a href="https://www.jb51.cc/tag/nes/" target="_blank" >nes</a>tyle,e.g.'steps--'. <a href="https://www.jb51.cc/tag/linewidth/" target="_blank" >linewidth</a> or lw: <a href="https://m.jb51.cc/tag/float/" target="_blank" >float</a> value in points lod: [True | False] marker: [7|4|5|6|'o'|'D'|'h'|'H'|'_'|''|None|'None'|' '|'8'|'p'|','|'+'|'.'|'s'|''|'d'|3|0|1|2|'1'|'3'|'4'|'2'|'v'|'<'|'>'|'^'|'|'|'x'|'$...$'`` | tuple | Nx2 array ]
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 | integer | (startind,strIDe)
picker: float distance in points or callable pick function fn(artist,event)
pickradius: float distance in points
rasterized: [True | False | None]
snap: unkNown
solID_capstyle: ['butt' | 'round' | 'projecting']
solID_joinstyle: ['miter' | 'round' | 'bevel']
transform: a :class:matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.<a href="https://m.jb51.cc/tag/transform/" target="_blank" >transform</a>s.<a href="https://m.jb51.cc/tag/transform/" target="_blank" >transform</a> instance
url: a url string
visible: [True | False]
xdata: 1D array
ydata: 1D array
zorder: any number
kwargs scalex and scaley,if defined,are passed on to
:meth:~matplot<a href="https://m.jb51.cc/tag/li/" target="_blank" >li</a>b.axes.Axes.<a href="https://m.jb51.cc/tag/auto/" target="_blank" >auto</a>scale_v<a href="https://m.jb51.cc/tag/IE/" target="_blank" >IE</a>w to determine
whether the x and y axes are autoscaled; the default is
True*.
Additional kwargs: hold = [True|False] overrIDes default hold state
以上是内存溢出为你收集整理的【Python】python中plot用法——线条、点、颜色全部内容，希望文章能够帮你解决【Python】python中plot用法——线条、点、颜色所遇到的程序开发问题。
如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。
欢迎分享，转载请注明来源：内存溢出
微信扫一扫
支付宝扫一扫
评论列表（0条）