Jan Krag JKrag

agnoster.zsh-theme

A ZSH theme optimized for people who use:

Solarized
Git
Unicode-compatible fonts and terminals (I use iTerm2 + Menlo)

For Mac users, I highly recommend iTerm 2 + Solarized Dark

Exploring cat pedigrees in Neo4J

This is a Neo4J GraphGist where I discover how to model pedigrees in Neo, and various Cypher queries to explore the data.

The data used is from a public available online pedigree of cats. I have stripped of all the names and registration data for simplicity. From a large dataset, I have extracted all the cats belonging to the very small breeds, giving a total of about 600 cats instead of 200K.

The following picture shows a sketch of my general data-model. The arrows between cats could also have been illustrated as "recursive" arrows back to the same cat node-type, but I think that this visualisation better describes the DAG (Directed Acyclical Graph) property of a pedigree/family tree.

The Zen of Cypher

Write functions() in lower case, KEYWORDS in upper.
START each keyword clause
ON a new line.
Use either camelCase or snake_case for node identifiers but be consistent.
Relationship type names should use UPPER_CASE_AND_UNDERSCORES.
Label names should use CamelCaseWithInitialCaps.
MATCH (clauses)-->(should)-->(always)-->(use)-->(parentheses)-->(around)-->(nodes)
Backticks `cân éscape odd-ch@racter$ & keyw0rd$` but should be a code smell.

	#!/bin/bash
	# usage neo.sh [-h host:port] [-u user:pass] [cmd]
	# end cypher statements with semicolon
	# terminate read loop with ^d or return

	HOST="localhost:7474"
	if [ "$1" == "-h" ]; then
	shift; HOST="$1";shift;
	fi
	AUTH=""