Expressions are predefined calculations that take inputs matching a data type and return outputs matching a data type.

Expressions in Tulip differ from expressions as a general concept because they utilize specific Tulip data types, such as a user.

Their syntax (the way they are created) resemble functions from Microsoft Excel.

Expressions are used in the following Models:

Triggers: An expression can be used within a trigger action when it is executed in the Tulip Player. It is defined by an app builder.
Analysis: An expression can be used to define a configurable field on an Analysis. It is executed every time the Analysis refreshes with new data.

Expressions are defined locally - they exist within the Trigger or Analysis where they are defined.

An expression can be in one of two states:

Success: The expression will properly calculate data and can be saved in Tulip
Failure: The expression will not properly calculate data and cannot be saved until it is fixed or deleted.

An example expression to convert a string to lowercase:

LOWER('a string data type')

Expressions available in Tulip.

Name	Description	Inputs	Output
ABS	Returns the absolute value of the input	n: Number	float
ARRAYCONTAINS	Returns true if the given value is in the given array, false otherwise	array: Array, v: Integer, Number, Text or Boolean
ARRAY_AVG	Returns the average of a given numeric array	a: Array
ARRAY_CONCAT	Concatenates any number of arrays of a single type into a single array of that type
ARRAY_INDEX_OF	Return the index of a value for a given array. When the value occurs more than once, the first index will be returned.	a: array, b: string	integer
ARRAY_MAX	Returns the maximum of a given numeric array	a: Array
ARRAY_MIN	Returns the minimum of a given numeric array	a: Array
ARRAY_STDEV_POPULATION	Returns the standard deviation of the population of a given numeric array	a: Array
ARRAY_STDEV_SAMPLE	Returns the standard deviation of the sample of a given numeric array	a: Array
AVERAGE	Returns the average of its argument	n: Integer or Number
AVERAGEFILTERED	Returns the average of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
AVG	Returns the average of its argument	n: Integer or Number
AVGFILTERED	Returns the average of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
BADGE_ID_TO_USER	Converts a badge id to a user object	badgeID: Text	user
CEIL	Rounds up to the nearest integer	n: Integer or Number
CONTAINS	Returns whether or not a string contains a given substring	string: Text, substring: Text	boolean
COS	Returns the cosine of the given input in radians	n: Number	float
COUNT	Returns the number of completions matching the given condition	condition?: Boolean
COUNTOFCOMPLETIONS	Returns the total number of completions.
ROUNDDATETIME	Truncates a date to the given unit	date: Datetime or Date, truncation: Text, timezone (optional): Text
ENCODE_URI	Returns a URL-encoded string version of a URI.	component: Text	string
ENCODE_URI_COMPONENT	Returns a URL-encoded string version of a URI component.	component: Text	string
FIND	Finds the starting index of the given substring inside the given string	find: Text, within: Text	integer
FLOOR	Rounds down to the nearest integer	n: Integer or Number
DATETIMETOTEXT	Formats a date to a string. Formatting:	date: Datetime or Date, format: Text, timezone: Text
HEX_TO_INT	Returns the numeric representation of the given hexadecimal string	hex: Text	float
IF	Returns the second argument if the first argument is true, or the third argument if the first argument is false	condition: Boolean, valueIfTrue: T, valueIfFalse: T
INTERVAL_TO_SECONDS	Returns the length of an interval in seconds	interval: Interval	float
INT_TO_HEX	Returns the hexadecimal representation of the given number	n: Number	string
LEFT	Returns a substring containing n characters starting from the left	text: Text, n: Integer	string
LEN	Returns the length of the input string	text: Text	integer
LINK	Returns the first non-null argument. Takes any number of same-type arguments.
LOWERCASE	Converts string to be all lowercase	s: Text	string
MAP_TO_BOOLEAN_LIST	Converts an object array to base array for the given key
MAP_TO_INTEGER_LIST	Converts an object array to base array for the given key
MAP_TO_NUMBER_LIST	Converts an object array to base array for the given key
MAP_TO_TEXT_LIST	Converts an object array to base array for the given key
MAX	Returns the maximum of the given values	a: Number, b: Number	float
MAXFILTERED	Returns the maximum of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
MAXIMUM	Returns the maximum of its argument	n: Integer or Number
MAXIMUMFILTERED	Returns the maximum of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
MID	Returns a substring containing n characters starting from start	text: Text, start: Integer, n: Integer	string
MIN	Returns the minimum of the given values	a: Number, b: Number	float
MINFILTERED	Returns the minimum of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
MINIMUM	Returns the minimum of its argument	n: Integer or Number
MINIMUMFILTERED	Returns the minimum of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
NULLIF	Returns null if the first argument equals the second argument, otherwise returns the first argument
TEXTTODATETIME	Parses a datetime from text and format. Formatting:	datetime: Text, format: Text, timezone (optional): Text
POW	Returns the first argument raised to power of the second argument	base: Number, exponent: Number	float
RAND	Generates a random decimal number between 0 and 1		float
RANDBETWEEN	Generates a random number between (and including) the two numbers provided	minimum: Integer, maximum: Integer	integer
RANDOMSTRING	Returns a random 17-character string		string
RANDOM_COLOR	Generates a random color
REGEX_MATCH	Returns an array of matches to the regular expression
RGB	Returns a color of the specified red, green, and blue components	r: Integer, g: Integer, b: Integer	color
RGBA	Returns a color of the specified red, green, blue, and alpha components	r: Integer, g: Integer, b: Integer, a: Number	color
RIGHT	Returns a substring containing n characters starting from the right	text: Text, n: Integer	string
ROUND	Rounds a number to the specified number of digits, or the nearest integer if no digits provided	n: Integer or Number, d?: Integer
SECONDS_TO_INTERVAL	Converts seconds into an interval	seconds: Integer or Number	interval
SIN	Returns the sine of the given input in radians	n: Number	float
SPLIT	Splits text on the given delimiter
SQRT	Returns the square root of a number	n: Number	float
TEXTTOIMAGEURL	Converts a string into an image URL	url: Text	imageUrl
SUBSTITUTE	Replaces text from given string with another string	s: Text, e: Text, n: Text	string
SUM	Returns the sum of its argument	n: Integer or Number
SUMFILTERED	Returns the sum of its argument, filtered to completions matching the given condition	n: Integer or Number, condition: Boolean
TAN	Returns the tangent value of the input in radians	n: Number	float
TEXTTOBOOLEAN	Parses text into a boolean. “y”, “yes”, “t”, “true”, and “on” (and any capitalized variants) are recognized as true, and “n”, “no”, “f”, “false”, and “off” are recognized as false	n: Text
TEXTTOINTEGER	Parses text into a integer	n: Text
TEXTTONUMBER	Parses text or a timestamp into a number	n: Text
TOTEXT	Parses anything into text	n: any
TRIM	Trims the given character(s) from the ends of the given string	text: Text, chars?: Text	string
UPPERCASE	Converts string to be all uppercase	s: Text	string
USER_ID_TO_USER	Converts a user id to a user object	id: Text	user

Tests

ID	Name
QA-T497	Expression Editor : 01 - Create an expression in an app trigger
QA-T521	Expression Editor : 02 - Running the "Expressions" app

Requirements

ID	Requirement
PLAT-8799 (75)	Ability to send notifications from any content screen. Ie. email, txt message, alarms.
PLAT-8887 (190)	Ability to define a UoM and the conversion formulas and rules between UoMs