Marginalia

data visualization attributes, ranked by perceptual accuracy (desc)

Quantitative	Ordinal	Nominal
Position	Position	Position
Length	Density	Hue
Angle	Saturation	Texture
Slope	Hue	Connection
Area	Texture	Containment
Volume	Connection	Density
Density	Containment	Saturation
Saturation	Length	Shape
Hue	Angle	Length
	Slope	Angle
	Area	Slope
	Volume	Area
		Volume

visualization choice by data type

Dependent	Continuous	Bar	Line
Dependent	Discrete	Bar	Bar
Independent	Continuous	Gantt	Scatter
Independent	Nominal / Discrete	Table	Gantt
		Nominal / Discrete	Continuous
		Independent

a taxonomy of data types

	Discrete	Continuous
Ordered	Ordinal, Quantitative	Fields (e.g. altitude, temperature)
Unordered	Nominal, Categorical	Cyclic values (e.g. directions, hues)

compile latex with associated references

xargs -I{} sh -c 'pdflatex {}.tex && bibtex {} && pdflatex {}.tex && pdflatex {}.tex' <<< filename

bash script usage from header comment

usage() {
  grep '^#' < "$0" | tail -n +2 | cut -c 3-
}

extract and compile text from multiple pdfs

mkdir processed
for f in *.pdf; do
  filename=${f/.pdf}
  printf "## %s\n\n" "${filename//[-_]/ }" >> pdf_text.md

  pdftotext "${f}"
  cat "${f}.txt" >> pdf_text.md
  printf "\n\n" >> pdf_text.md

  mv -- ${f} "${filename}.txt" processed/
done

copy files to remote server

scp <source-filepath> <user@address:destination-filepath>

# Examples:
scp /path/to/file.pdf [email protected]:/path/to/destination

# Or, using an ssh config entry alias `target_server`
scp /path/to/file.pdf target_server:/path/to/destination

search for deleted files by filename pattern

git log --diff-filter=D --name-only --pretty=format:"%h %ad %s" -- '*pattern*'

aws cli s3, cloudformation, and lambda facilities

aws s3 ls
aws s3 cp [file-name] s3://[bucket]/[object-path]
aws cloudformation create-stack --stack-name [app-name] --template-body file://[filename].yaml --capabilities CAPABILITY_NAMED_IAM
aws cloudformation update-stack --stack-name [app-name] --template-body file://[filename].yaml --capabilities CAPABILITY_NAMED_IAM
aws lambda update-function-code --function-name [function-name] --zip-file fileb://[filename].zip

extract plain text from pdfs

npm install -g easy-pdf-parser
pdftotext document.pdf