用 D3.js 做一个简单的柱形图. 做柱形图有很多种方法,比如用 HTML 的 div 标签,或用 svg . 推荐用 SVG 来做各种图形.SVG 意为可缩放矢量图形(Scalable Vector Graphics),SVG 使用 XML 格式定义图像,不清楚什么是SVG的朋友请先在 w3cschools 学习下,内容很少,很快就能掌握,不需要记住各种标签,只要知道大概是什么就行,用的时候再查. 先看下面的代码: <script src="http://d3js.org/d3.v3.…

Natural Language Processing with Python Chapter 4.8 colors = 'rgbcmyk' # red, green, blue, cyan, magenta, yellow, black def bar_chart(categories, words, counts): "Plot a bar chart showing counts for each word by category" import pylab ind = pyla…

1. 条形图(Bar Chart)需要的数据格式类型如下: ["Luke Skywalker", "Darth Vader", "Yoda", "Princess Leia"] [2, 4, 1, 1] 2. Bar Chart代码示例: $(function () { $('#container').highcharts({ chart: { type: 'bar' }, xAxis: { categories: ['Jan…

When the data being rendered by a chart changes, sometimes it necessitates a change to the scales and axes of the chart as well. This lesson demonstrates how to animate and synchronize axis transitions on a column chart. var svg = d3.select('.chart')…

Most charts aren’t complete without axes to provide context and labeling for the graphical elements being displayed. This lesson introduces D3’s APIs for creating, customizing, and displaying axes while building on topics from previous lessons. var m…

Matplotlib之Bar Chart: import numpy as np import matplotlib.pyplot as plt data = [[300, 200, 250, 150, 280], [300, 166, 203, 250, 225], [100, 110, 115, 150, 112], [300, 200, 250, 150, 280], [20, 30, 15, 10, 12], [20, 10, 10, 10, 20]] columns = ('Monda…

2.2Organizing Qualitative Data The number of times a particular distinct value occurs is called its frequency (or count) Relative-Frequency Distribution:百分比 Note: Relative-frequency distributions are better than frequency distributions for comparing…

应用统计学 对类别数据要分类处理: Bar chart复式条形图便于对比: Pareto chart:对类别变量依据频数高低排列: Pie chart:饼图用于一个样本,可以区分类别数据 doughnut chart:环形图用于多个样本,可以区别类别数据 顺序数据:通过计算cumulative percentages向上向下累计,这两者可有不同的解释 线图可以多类方便的放在一张图上,便于比较 对数值型数据要分组处理: 单变量分组:该变量必须是离散值且数量少 组距分组: 等距分组eg:10-20:…

最近需要做一些Web图标,研究了几个开源的第三方工具后,最后决定使用HighCharts开发: Highcharts 是一个用纯JavaScript编写的一个图表库, 能够很简单便捷的在web网站或是web应用程序添加有交互性的图表,并且免费提供给个人学习.个人网站和非商业用途使用.目前HighCharts支持 的图表类型有曲线图.区域图.柱状图.饼状图.散状点图和综合图表. HighCharts界面美观,由于使用JavaScript编写,所以不需要像Flash和Java那样需要插件才可以运行,…

def bar_chart_generator():     l = [1,2,3,4,5]     h = [20, 14, 38, 27, 9]     w = [0.1, 0.2, 0.3, 0.4, 0.5]     b = [1,2,3,4,5]       fig = plt.figure()     ax = fig.add_subplot(111)     rects = ax.bar(l, h, w, b,                    color='#ffff00',…