data analysis using R and Rstudio: introduction

文章信息
作者： kaiwu
点击数：1368
 
1.1 download from official websites
R software
 
Rstudio
 
1.2 download from kaiwu.city
 
 
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R and Rstudio for Windows 64-bit systems or Windows 10, Windows11 
 
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R and Rstudio for Windows 32-bit systems or Windows 7 
 
 

2.download the  simulated dataset

 

2.1questionnaire

2.2 data for general purpose (without variable labels and value labels)

 

2.3 R markdown file

 

 

 

3.output

http://kaiwu.city/openfiles/tourist_CN.html 

 

 

leaflet

Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 42 KB of JS, it has all the mapping features most developers ever need.

openstreet map

Importance-Performance Analysis

 

 

 

 

List: online office

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作者： kaiwu
点击数：747

1.Microsoft Office

office online

https://www.office.com/

 

2.google document

https://docs.google.com

logo googledocs

https://en.wikipedia.org/wiki/Google_Docs,_Sheets_and_Slides,_Sheets_and_Slides

 

3.Zoho office

logo zoho

https://www.zoho.com/

https://www.zoho.com.cn/docs/

 

4.libreoffice

https://www.libreoffice.org/

LibreOffice is a free and powerful office suite, and a successor to OpenOffice.org (commonly known as OpenOffice).

Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity.

 

5.openoffice

https://www.openoffice.org/

Apache OpenOffice is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. 

 

 

online office platforms in China mainland.

6.WPS office

https://www.wps.com/ 

https://drive.wps.cn/ 或者https://docs.wps.cn

https://www.wps.cn/

WPS Office is available on multiple platforms, including Windows, macOS, Linux, Android, and iOS. You can work anytime and anywhere on your mobile phone or computer. Work-study-life balance is no longer a far-fetched dream but at your fingertips.

 

 

7.tengxun document

https://docs.qq.com

teng xun wen danglogo

 

8.dingtalk document

 https://docs.dingtalk.com/

logo dingding doc

 

 

9.feishu document

feishu logo

https://docs.feishu.cn/

 

 

 

 

10. Pandoc支持多种格式文本之间的转换

logo pandoc

 

About pandoc

If you need to convert files from one markup format into another, pandoc is your swiss-army knife. Pandoc can convert between the following formats:

(← = conversion from; → = conversion to; ↔︎ = conversion from and to)

Lightweight markup formats

↔︎ Markdown (including CommonMark and GitHub-flavored Markdown)
↔︎ reStructuredText
→ AsciiDoc
↔︎ Emacs Org-Mode
↔︎ Emacs Muse
↔︎ Textile
→ Markua
← txt2tags

HTML formats

↔︎ (X)HTML 4
↔︎ HTML5

Ebooks

↔︎ EPUB version 2 or 3
↔︎ FictionBook2

Documentation formats

→ GNU TexInfo
↔︎ Haddock markup

Roff formats

↔︎ roff man
→ roff ms

TeX formats

↔︎ LaTeX
→ ConTeXt

XML formats

↔︎ DocBook version 4 or 5
↔︎ JATS
→ TEI Simple
→ OpenDocument XML

Outline formats

↔︎ OPML

Bibliography formats

↔︎ BibTeX
↔︎ BibLaTeX
↔︎ CSL JSON
↔︎ CSL YAML
← RIS
← EndNote XML

Word processor formats

↔︎ Microsoft Word docx
↔︎ Rich Text Format RTF
↔︎ OpenOffice/LibreOffice ODT

Interactive notebook formats

↔︎ Jupyter notebook (ipynb)

Page layout formats

→ InDesign ICML

Wiki markup formats

↔︎ MediaWiki markup
↔︎ DokuWiki markup
← TikiWiki markup
← TWiki markup
← Vimwiki markup
→ XWiki markup
→ ZimWiki markup
↔︎ Jira wiki markup
← Creole

Slide show formats

→ LaTeX Beamer
→ Microsoft PowerPoint
→ Slidy
→ reveal.js
→ Slideous
→ S5
→ DZSlides

Data formats

← CSV tables

Custom formats

↔︎ custom readers and writers can be written in Lua

PDF

→ via pdflatex, lualatex, xelatex, latexmk, tectonic, wkhtmltopdf, weasyprint, prince, pagedjs-cli, context, or pdfroff.

Pandoc understands a number of useful markdown syntax extensions, including document metadata (title, author, date); footnotes; tables; definition lists; superscript and subscript; strikeout; enhanced ordered lists (start number and numbering style are significant); running example lists; delimited code blocks with syntax highlighting; smart quotes, dashes, and ellipses; markdown inside HTML blocks; and inline LaTeX. If strict markdown compatibility is desired, all of these extensions can be turned off.

LaTeX math (and even macros) can be used in markdown documents. Several different methods of rendering math in HTML are provided, including MathJax and translation to MathML. LaTeX math is converted (as needed by the output format) to unicode, native Word equation objects, MathML, or roff eqn.

Pandoc includes a powerful system for automatic citations and bibliographies. This means that you can write a citation like

[see @doe99, pp. 33-35; also @smith04, ch. 1]

and pandoc will convert it into a properly formatted citation using any of hundreds of CSL styles (including footnote styles, numerical styles, and author-date styles), and add a properly formatted bibliography at the end of the document. The bibliographic data may be in BibTeX, BibLaTeX, CSL JSON, or CSL YAML format. Citations work in every output format.

There are many ways to customize pandoc to fit your needs, including a template system and a powerful system for writing filters.

Pandoc includes a Haskell library and a standalone command-line program. The library includes separate modules for each input and output format, so adding a new input or output format just requires adding a new module.

Pandoc is free software, released under the GPL. Copyright 2006–2021 John MacFarlane.

 

衰老的3个重要时间节点：34、60、78

文章信息
作者： kaiwu
点击数：986

听了得到app，卓克.科技参考2   274 | 衰老：我们会在34岁、60岁、78岁突然老去

https://www.dedao.cn/course/article?id=5Mr9mzb36pP4JL5d3PXkWqB2EYNegL

衰老的进程并不是均匀的，而是有 3 个时间节点——34 岁、60 岁、78 岁。

这 3 个时间节点对大部分人来说都是如此。大家都是在这 3 个年龄节点，在可测的指标上突然大幅衰老。而在其他时间段，衰老的进程要慢得

Tony 团队把年轻小鼠的血液输送给老年小鼠后，很明显的改善了老年小鼠的大脑功能。这就提示 Tony 团队，血液中肯定存在着很多与年龄相关的物质，如果把这些物质的浓度、种类、配比准确测量出来，说不定就能用它来评估衰老程度。所以从 2015 年开始，他们就把注意力集中在血浆蛋白上。

血浆蛋白是个统称，可测的蛋白质有几千种，有的负责维持渗透压，有的负责稳定 pH 值，有的是免疫蛋白，有的起催化作用，有的起运输作用，有的起凝血作用等等。每升血液里的血浆蛋白大概有 70 多克。

Tony 团队一共召集了 4263 个年龄从 18-95 岁的人，测量了他们体内 2925 种血浆蛋白，然后在海量数据里筛选出与年龄变化高度相关的蛋白质，就得出了以上的结论。

 

Lehallier, B., Gate, D., Schaum, N., Nanasi, T., Lee, S. E., Yousef, H., Moran Losada, P., Berdnik, D., Keller, A., Verghese, J., Sathyan, S., Franceschi, C., Milman, S., Barzilai, N., & Wyss-Coray, T. (2019). Undulating Changes in Human Plasma Proteome Profiles Across the Lifespan. Nature Medicine, 25(12), Article 12. https://doi.org/10.1038/s41591-019-0673-2
 
Wang, T., Ma, J., Hogan, A. N., Fong, S., Licon, K., Tsui, B., Kreisberg, J. F., Adams, P. D., Carvunis, A.-R., Bannasch, D. L., Ostrander, E. A., & Ideker, T. (2019). Quantitative Translation of Dog-to-Human Aging by Conserved Remodeling of Epigenetic Networks (p. 829192). bioRxiv. https://doi.org/10.1101/829192
https://www.biorxiv.org/content/10.1101/829192v2
 
https://www.biorxiv.org/content/10.1101/751115v1.full.pdf
 

相关的博客文章

 blog posts on this study

 https://med.stanford.edu/news/all-news/2019/12/stanford-scientists-reliably-predict-peoples-age-by-measuring-pr.html

https://surfaceyourrealself.com/2019/12/24/a-blood-plasma-protein-aging-clock/

https://joshmitteldorf.scienceblog.com/2019/12/23/new-aging-clock-based-on-proteins-in-the-blood/

 

Tony Wyss-Coray is the D.H. Chen Distinguished Professor of Neurology and Neurological Sciences and the Director of the Phil and Penny Knight Initiative for Brain Resilience at Stanford University. His lab studies brain aging and neurodegeneration with a focus on age-related cognitive decline and Alzheimer’s disease. The Wyss-Coray research team discovered that circulatory blood factors can modulate brain structure and function and factors from young organisms can rejuvenate old brains. Current studies focus on the molecular basis of the systemic communication with the brain by employing a combination of genetic, cell biology, and –omics approaches in killifish, mice, and humans. Wyss-Coray has presented his ideas at Global TED, the Tencent WE Summit, and the World Economic Forum, and he was voted Time Magazine’s “The Health Care 50” most influential people transforming health care in 2018. He co-founded Alkahest Inc. and several other companies targeting Alzheimer’s and neurodegeneration and has been the recipient of an NIH Director’s Pioneer Award, a Zenith Award from the Alzheimer’s Association, and a NOMIS Foundation Award.
https://med.stanford.edu/profiles/tony-wyss-coray 
https://scholar.google.com/citations?user=huboyZcAAAAJ&hl=en&oi=ao
 
 

map: where to see pandas

文章信息
作者： kaiwu
点击数：1371

https://www.giantpandaglobal.com/zoos/





https://news.cgtn.com/news/3d3d674e7741444f33457a6333566d54/img/f22a4660819043c196f47a33185288c4/f22a4660819043c196f47a33185288c4.jpg

https://www.giantpandaglobal.com/zoos/

 

https://www.giantpandaglobal.com/category/zoo/dalian-forest-zoo/

DALIAN FOREST ZOO OPENS PANDA EXHIBIT

https://www.dl.gov.cn/col/col3042/index.html

 

 

R package: lavaan

文章信息
作者： kaiwu
点击数：907
 
 
 

Data Sets

Data sets for the examples and exercises in the book.

Chapter 2: Path Models and Analysis

Chapter 5: Models with Multiple Time Periods

Chapter 6: Models with Dichotomous Indicator Variables

Chapter 7: Models with Missing Data

Yves Rosseel
Yves Rosseel (2012). lavaan: An R Package for Structural Equation Modeling. Journal of Statistical Software, 48(2), 1-36. URL http://www.jstatsoft.org/v48/i02/
 
 
Ghent University
Department of Data Analysis
Henri Dunantlaan 1
B-9000 Gent
Belgium
Tel: +32(0)9 264.63.74
Fax: +32(0)9 264.64.87
Email: Yves.Rosseel (at) UGent.be
 
Research interests
* structural equation modeling
* software for applied data analysis
 
Publications
* http://lib.ugent.be/bibliografie/801000974909
 
Software
* R package `lavaan': a package for latent variable analysis (website: http://lavaan.org)
 
Teaching
* Psychometrie (2nd Bachelor Psychology)
* Onderzoeksmethoden II (1st Master Educational Sciences)
* Analysis of Repeated Measures (1st Master Experimental Psychology)
 
 
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