Covid-19 data (USA) Interactive Display with R and Shiny Package

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Preamble

Shiny is an R package that makes it easy to build interactive web apps from R. This is an example demonstrating the dynamic distribution of Covid-19 data in USA.

The data source used for this analysis is the 2019 Novel Coronavirus COVID-19 (2019-nCoV) Data Repository1 built the Center for Systems Science and Engineering, Johns Hopkins University (GitHub – CSSEGISandData/COVID-19: Novel Coronavirus (COVID-19) Cases, provided by JHU CSSE). ...

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Covid-19 Data Visualization with R

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Data Source

UPDATE: JHU dataset changed its name and format, The data for USA and global are separated. The US data adapted a new format. Some amateur data scientists are in charge of the this project. 04-02-2020

The data source used for this analysis is the 2019 Novel Coronavirus COVID-19 (2019-nCoV) Data Repository1 built the Center for Systems Science and Engineering, Johns Hopkins University (GitHub ...

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Replace BIOS Chip in Lenovo Y700 Motherboard

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The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface. With all the advantages, it is appears to be more volatile and fragile for multiple boot system. I found it is easily to lose the bootloading info when you make some changes in bios setting (esp. secure boot) or by disconnect the bios chip battery. I ...

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Use Emacs, Org2blog to Publish WordPress Blogs with Crayon Highlight Support

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Preamble

Org2blog is THE best tool to publish from org-mode to WordPress. There is a very good blog in Chinese in addition to the official site.

Stylesheet for Org-exported HTML

  1. CSS Support for more info
  2. Code highlight for more info

Dependencies

org2blog is depending on the following:

  1. xml-rpc, metaweblog and htmlize.
  2. Org mode version should be 7 8 or higher. And I ...
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How to setup mini vci with Techstream on 64bit computer

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Following info is adapted from here. Another site with a similar instruction. If you do not have the software and drivers, a vender from amazon provides a link for download.

tis2_2018-01-21_21-05-55.JPG

TIS Techstream V10 Setup Instruction ( !!! for 64 bit system !!! ) :

  1. The Techstream version 12* and above should be compatible with Windows 10 64 bit system.
    • Installed and follow through instruction.
    • Start Techstream and input Area, ...
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Reinstall Grub after motherboard replacement (or hdd upgrade)

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Prepare Arch Linux Live Disc

  1. Make a bootable installation media for Arch Linux
  2. This laptop doesn’t have any CD/DVD drive so the first thing is to make a bootable USB drive.

    Boot into Windows 10. In Windows, download archlinux iso from the following website

    https://www.archlinux.org/download/

    Use the mirror which is closest to you and download the Arch iso. archlinux-2015.12.01-dual.iso

    Download Rufus from the following location https://rufus.akeo.ie/

    Plugin any ...

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