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3.4 Convert R Markdown to R script
When you want to extract all R code from an R Markdown document, you can call the function knitr::purl() . Below is a simple Rmd example with the filename purl.Rmd : --- title ... -
String
match split trim match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against Returns Array The list of matches or emp... -
String
match split match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against Returns Array The list of matches or empty arr... -
Scalar Functions
id start_id end_id type properties head last length size startNode endNode timestamp toBoolean toFloat toInteger coalesce id id() returns the id of a vertex or e... -
Logarithmic Functions
e sqrt exp log log10 e e() returns the base of the natural logarithm, e. Syntax: e() Returns: An agtype float . Query SELECT * FROM cypher ( 'graph_name' , $$... -
Numeric Functions
rand abs ceil floor round sign rand rand() returns a random floating point number in the range from 0 (inclusive) to 1 (exclusive); i.e.[0,1). The numbers returned follow ... -
String Functions
replace split left right substring rTrim lTrim trim toLower toUpper reverse toString replace replace() returns a string in which all occurrences of a specified strin... -
Trigonometric Functions
degrees radians pi sin cos tan Cot asin acos atan atan2 degrees degrees() converts radians to degrees. Syntax: degrees(expression) Returns: An agtype float . ... -
LIMIT
Introduction Return a subset of the rows Using an expression with LIMIT to return a subset of the rows LIMIT constrains the number of records in the output. Introduction LIM... -
Age Beyond Cypher
Overview Using Cypher in a CTE Expression Using Cypher in a Join expression Cypher in SQL expressions Prepared Statements PL/pgSQL Functions SQL In Cypher