崔小菜-CSDN博客

翻译绘制带彩色标记的散点图

import matplotlib.pyplot as pltimport numpy as npx = np.random.rand(1000)# 不相关数据y1 = np.random.rand(len(x))# 强正相关数据y2 = 1.2 + np.exp(x)ax1 = plt.subplot(121)# alpha：透明度# marker：设置点状标记plt.

2017-10-23 21:39:42 1266

翻译绘制带填充区域的图表

import matplotlib.pyplot as pltimport numpy as npx = np.arange(0.0, 2, 0.01)y1 = np.sin(2 * np.pi * x)y2 = 1.2 * np.sin(4 * np.pi * x)fig = plt.figure()ax = plt.gca()ax.plot(x, y1, x, y2, c

2017-10-23 21:35:53 520

翻译绘制饼图

import matplotlib.pyplot as pltplt.figure(1, figsize=(6, 6))ax = plt.axes([0.1, 0.1, 0.8, 0.8])# 饼图按逆时针顺序画出labels = 'Spring', 'Summer', 'Autumn', 'Winter'# 饼图每部分定义为x/sum(x)，或者x if sum(x) <= 1

2017-10-23 21:33:29 489

翻译绘制误差条形图

import matplotlib.pyplot as pltimport numpy as npx = np.arange(2, 10, 1)y = np.log(x)xe = 0.1 * np.abs(np.random.rand(len(y)))# 创建误差条形图'''left：x轴的位置序列height：y轴的数值序列，即柱形图的高度xerr/yerr：用于在柱状

2017-10-23 21:32:30 4461

翻译绘制直方图

from matplotlib import pyplot as pltimport numpy as npmu = 100sigma = 15x = np.random.normal(mu, sigma, 10000)ax = plt.gca()# 调用plt.hist()创建直方图'''bins：可以是一个bin数量的整数值，也可以是表示bin的一个序列。默认值为10r

2017-10-23 21:30:29 382

翻译移动轴线到图中央

from matplotlib import pyplot as pltimport numpy as npx = np.linspace(-np.pi, np.pi, 500, endpoint=True)y = np.sin(x)plt.plot(x, y)# 移动轴线到图中央ax = plt.gca()# 隐藏上和右两条脊柱，将其设置为无色ax.spines['rig

2017-10-23 21:29:32 288

翻译添加图例和注解

from matplotlib import pyplot as pltimport numpy as npx1 = np.random.normal(30, 3, 100)x2 = np.random.normal(20, 2, 100)x3 = np.random.normal(10, 3, 100)# 如果不想在图例中显示标签，可将标签设置为_nolegend_。plt.pl

2017-10-23 21:27:54 3184

翻译设置刻度、刻度标签和网格

from matplotlib import pyplot as pltimport matplotlib as mplimport numpy as npimport datetime'''# 返回当前显示图形的轴axisax = plt.gca()# 设置紧凑视图# nbins设置坐标轴一共平均分为几份，也可以显式的指定坐标轴，通过面向对象的方式或pyplot的方式# a

2017-10-23 21:26:00 1186

翻译设置图表的线型、属性和格式化字符串

from matplotlib import pyplot as pltx = [1, 3, 5, 7, 9]y = [2, 4, 6, 8, 10]'''# 改变线的属性# 第一种方式，向方法传入关键字参数来指定线型plt.plot(x, y, linewidth=15)''''''# 第二种方式，对plot()方法调用返回的线条实例（matplotlib.lines.L

2017-10-23 21:24:53 358

翻译设置坐标轴长度和范围

from matplotlib import pyplot as plt# axis()返回坐标轴的默认值(0.0, 1.0, 0.0, 1.0)，(xmin, xmax, ymin, ymax)plt.axis()# 设置x轴和y轴的值ax_values = [-1, 1, -10, 10]plt.axis(ax_values)# plt.autoscale()，该方法会计算坐

2017-10-23 21:22:55 8561

翻译简单的正弦图和余弦图

from matplotlib import pyplot as pltimport numpy as np'''numpy.linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None) retstep=True, return (samples, st

2017-10-23 21:20:47 4445

翻译定义图表类型——柱状图、线形图和堆积柱状图

from matplotlib import pyplot as pltx = [1, 2, 3, 4]y = [5, 4, 3, 2]dataset = [113, 115, 119, 121, 124, 124, 125, 126, 126, 126, 127, 127, 128, 129, 130, 130, 131,

2017-10-23 21:15:08 2397

翻译数字信号产生之解析信号的产生

fft.h #pragma once#include #define pi 3.14159265359class fft{private: double * x, * y; double c, c1, e, s, s1, t, tr, ti; int n, sign, i, j, k, l, m, n1, n2;public: fft() {}

2013-09-03 11:11:17 1143

翻译数字信号产生之含有高斯白噪声的正弦组合信号的产生

uniform.h #pragma onceclass uniform{private: double a, b, generate_num; int * seed; int s; int M, N, i, j;public: uniform() { M = 1048576; N = 2045; } void generate()

2013-09-03 11:09:37 3141