## 统计代写|数据可视化代写Data visualization代考|COSC3000

2022年9月24日

couryes-lab™ 为您的留学生涯保驾护航 在代写数据可视化Data visualization方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写数据可视化Data visualization代写方面经验极为丰富，各种代写数据可视化Data visualization相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础
couryes™为您提供可以保分的包课服务

## 统计代写|数据可视化代写Data visualization代考|US Census Atlases

Other striking examples representing high points of the Golden Age appear in the series of statistical atlases published by the US Census Bureau in three volumes for the decennial census years 1870 to 1890 . The Statistical Atlas of the Ninth Census, published in 1874 under the direction of Francis A. Walker [1840-1897] was the first true US national statistical atlas, composed as a graphic portrait of the nation. This was followed by larger volumes from each of the 1880 and 1890 censuses, prepared under the direction of Henry Gannett [1846-1914], sometimes described as the father of American government map-making. ${ }^{22}$

The impetus for this development stemmed largely from the expanded role given to the census office following the US Civil War. The decennial census, which was begun in 1790 by Thomas Jefferson, was initially designed to serve the constitutional need to apportion congressional representation among the states. However, by June 1872, the Congress recognized “the importance of graphically illustrating the three quarto volumes of the ninth census of the United States, by a series of maps exhibiting to the eye the varying intensity of settlement over the area of the country, the distribution among the several States …, the location of the great manufacturing and mining industries, the range of cultivation of each of the staple productions of agriculture, the prevalence of particular forms of disease and other facts of material and social importance which have been obtained through such census. ${ }^{n 23}$

Accordingly, the atlas for the ninth census was composed of fifty-four numbered plates divided into three parts: (a) physical features of the United States: river systems, woodland distribution, weather, minerals; (b) population, social, and industrial statistics: population density, ethnic and racial distribution, illiteracy, wealth, church affiliation, taxation, crop production, and so on; (c) vital statistics: age, sex, and ethnicity distributions, death rates by age, sex, causes, distributions of the “afflicted classes” (blind, deaf, insane), and so on. The plates were accompanied by eleven brief discussions of these topics, containing tables and other illustrations.

## 统计代写|数据可视化代写Data visualization代考|The Modern Dark Ages

We defined a golden age is a period of high accomplishment surrounded on both sides by relatively lower levels: a mountain or a plateau. This is true for the Golden Age of Graphics. You can see this in the dip in graphical innovations into the 1950s shown in Figure 7.1. If the last half of the nineteenth century can be called the Golden Age of Statistical Graphics, the first half of the twentieth century can equally be called the “Modern Dark Ages” of data visualization. ${ }^{28}$ What happened?

As mentioned earlier, the costs associated with government-sponsored statistical albums eventually outweighed the enthusiasm of those who paid the bills. But more importantly, a new zeitgeist began to appear, which would turn the attention and enthusiasm of both theoretical and applied statisticians away from graphic displays, back to numbers and tables, with a rise of quantification that would supplant visualization. Modern statistical methods had arrived.

It is somewhat ironic that this change of view reflects a form of intellectual parricide. The statistical theory that had started with games of chance and the calculus of astronomical observations developed into the first ideas of statistical models, starting with correlation and regression, due to Galton, Pearson, and others, and this development was aided greatly by the birth of visualization methods and dependent on visual thinking.

Yet, by 1908, W. S. Gosset (publishing under the pseudonym Student) developed the $t$-test, allowing researchers to determine whether two groups of numbers (yields of wheat grown with or without a fertilizer) differed “significantly” in their average value. All that was needed was a single number (a probability or $p$-value) to decide, or so it seemed.

# 数据可视化代考

## 有限元方法代写

tatistics-lab作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。