### 统计代写|数据可视化作业代写data visualization代考|When to Use Tables

statistics-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

## 统计代写|数据可视化作业代写data visualization代考|Tables versus Charts

In general, charts can often convey information faster and easier to readers than tables, but in some cases a table is more appropriate. Tables should be used when the:

• reader needs to refer to specific numerical values.
• reader needs to make precise comparisons between different values and not just relative comparisons.
• values being displayed have different units or very different magnitudes.
Let us consider the case of Gossamer Industries. When the accounting department of Gossamer Industries is summarizing the company’s annual data for completion of its federal tax forms, the specific numbers corresponding to revenues and expenses are important and not just the relative values. Therefore, these data should be presented in a table similar to Table 2.1.
Similarly, if it is important to know by exactly how much revenues exceed expenses each month, then this would also be better presented as a table rather than as a line chart as seen in Figure $2.27$. Notice that it is very difficult to determine the monthly revenues and costs in Figure 2.27. We could add these values using data labels, but they would clutter the figure. A preferred solution is to combine the chart with the table into a single figure, as in Figure $2.28$, to allow the reader to easily see the monthly changes in revenues and costs while also being able to refer to the exact numerical values.
• Using the data in the file Gossamer, the following steps show how to create the line chart accompanied with a table as shown in Figure $2.28$.

## 统计代写|数据可视化作业代写data visualization代考|Waterfall Charts

A waterfall chart is a visual display that shows the cumulative effect of positive and negative changes on a variable of interest. The changes in a variable of interest are reported for a series of categories (such as time periods) and the magnitude of each change is represented by a column anchored at the cumulative height of the changes in the preceding categories.

Continuing with the Gossamer Industries example from the Section 2-6, consider the data in the file GossamerGP. The data are shown in Figure 2.29. Gross profit is the difference between revenue and variable costs.

The following steps are used to create the waterfall chart of gross profit shown in Figure 2.30.
Step 1. Select cells A2:H2. Hold down the control key (Ctrl) and also select cells A5:H5
Step 2. Click the Insert tab on the Ribbon
Step 3. Click the Insert Waterfall, Funnel, Stock, Surface or Radar Chart button Th. in the Charts group
When the list of subtypes appears, click the Waterfall button [r]
In the initial chart, notice that the Total has been treated like another month. The following steps will make the total appear as in Figure 2.30.

Step 4. Double-click the column Total to activate the Format Data Series task pane, and then click the column of data again to activate the Format Data Point task pane
Step 5. When the Format Data Point task pane appears, click the Series Options button II
Select the check box for Set as total
Then edit the chart as outlined in Section 2-2

## 统计代写|数据可视化作业代写data visualization代考|Stock Charts

Excel 提供了四种不同类型的股票图表。我们在这里说明了最简单的一种，即高-低-收盘价图表。高低收盘图表是显示股票价格在几个时间点的高值、低值和收盘价的图表。每个时间点的最高和最低股价之间的差异由垂直条表示，收盘价由条上的标记表示。

## 广义线性模型代考

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## 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。