### 统计代写|python代考|Growing Lists by Appending Sequences

Python是一种高级的、解释性的、通用的编程语言。它的设计理念强调代码的可读性，使用大量的缩进。

Python是动态类型的，并且是垃圾收集的。它支持多种编程范式，包括结构化（特别是程序化）、面向对象和函数式编程。由于其全面的标准库，它经常被描述为一种 “包含电池 “的语言。

statistics-lab™ 为您的留学生涯保驾护航 在代写python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python代写方面经验极为丰富，各种代写python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|python代考|Growing Lists by Appending Sequences

Suppose you have two lists that you want to join together. You haven’t been shown a purposely built way to do that yet. You can’t use append to take one sequence and add it to another. Instead, you will find that you have layered a sequence into your list:
$>>>$ living_room $=($ “rug”, “table”, “chair”, “TV”, “dustbin”, “shelf”)

apartment $=[1]$
$>>>$ apartment.append(living_room)
$>>$ apartment
[(‘rug’, ‘table’, ‘chair’, ‘TV’, ‘dustbin’, ‘shelf’)]
This is probably not what you want if you were intending to create a list from the contents of the tuple living_room that could be used to create a list of all the items in the apartment.

To copy all of the elements of a sequence, instead of using append, you can use the extend method of lists and tuples, which takes each element of the sequence you give it and inserts those elements into the list from which it is called:
$>>>$ apartment $=[1]$

apartment.extend(1iving_room)
$>>$ apartment = []
$>>$ apartment. extend(living_room)
$>>$ apartment
[‘rug’, ‘table’, ‘chair’, ‘TV’, ‘dustbin’, ‘shelf’]
$>>>$ apartment
[‘rug’, ‘table’, ‘chair’, ‘TV’, ‘dustbin’, ‘shelf’]

## 统计代写|python代考|Using Lists to Temporarily Store Data

You’ll often want to acquire data from another source, such as a user entering data or another computer whose information you need. To do that, it is best to put this data in a list so that it can be processed later in the same order in which it arrived.

However, after you’ve processed the data, you no longer need it to be in the list, because you won’t need it again. Temporal (time-specific) information such as stock tickers, weather reports, or news headlines would be in this category.

To keep your lists from becoming unwieldy, a method called pop enables you to remove a specific reference to data from the list after you’re done with it. When you’ve removed the reference, the position it occupied will be filled with whatever the next element was, and the list will be reduced by as many elements as you’ve popped.

## 统计代写|python代考|Popping Elements from a List

When a value is popped, if the action is on the right-hand side of an equals sign, you can assign the element that was removed to a value on the left-hand side, or just use that value in cases where it would be appropriate. If you don’t assign the popped value or otherwise use it, it will be discarded from the list.
You can also avoid the use of an intermediate name, by just using pop to populate, say, a string format, because pop will return the specified element in the list, which can be used just as though you’d specified a number or a name that referenced a number:

print “Afternoon temperature was 호. $02 \mathrm{f}$ ” 와 todays_temperatures.pop(0)
Afternoon temperature was $31.00$
print “Afternoon temperature was $8.02 \mathrm{f}$ ” of todays
Afternoon temperature was $31.00$
$>>>$ todays_temperatures
${[29] }$
$\rightarrow>$ todays_temperatures
[29]
If you don’t tell pop to use a specific element ( 0 in the examples) from the list it’s invoked from, it will remove the last element of the list, not the first as shown here.

In this chapter, you learned how to manipulate many core types that Python offers. These types are tuples, lists, dictionaries, and three special types: None, True, and False. You’ve also learned a special way that strings can be treated like a sequence. The other sequence types are tuples and lists.

A tuple is a sequence of data that’s indexed in a fixed numeric order, starting at zero. The references in the tuple can’t be changed after the tuple is created. Nor can it have elements added or deleted. However, if a tuple contains a data type that has changeable elements, such as a list, the elements of that data type are not prevented from changing. Tuples are useful when the data in the sequence is better off not changing, such as when you want to explicitly prevent data from being accidentally changed.

A list is another type of sequence, which is similar to a tuple except that its elements can be modified. The length of the list can be modified to accommodate elements being added using the append method, and the length can be reduced by using the pop method. If you have a sequence whose data you want to append to a list, you can append it all at once with the extend method of a list.

## 统计代写|python代考|Growing Lists by Appending Sequences

>>>客厅=(“地毯”、“桌子”、“椅子”、“电视”、“垃圾箱”、“架子”）

>>>公寓。附加（客厅）
>>apartment
[(‘rug’, ‘table’, ‘chair’, ‘TV’, ‘dustbin’, ‘shelf’)]

>>>公寓=[1]

>>公寓 = []
>>公寓。扩展（客厅）
>>公寓
[‘地毯’, ‘桌子’, ‘椅子’, ‘电视’, ‘垃圾箱’, ‘架子’]
>>>公寓
[‘地毯’, ‘桌子’, ‘椅子’, ‘电视’, ‘垃圾箱’, ‘架子’]

## 统计代写|python代考|Popping Elements from a List

>>>今天_温度
[29]
→>todays_temperatures
[29]

## 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。