What are Tableau Functions? Edureka

AGENDA
Number Functions
String Functions
Date Functions
Type Conversion Functions
Aggregate Functions
Logical Functions
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Number
Functions
1.
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1. Number Functions

Number functions allow you to perform computations on the data
values in your fields. Number functions can only be used with fields
that contain numerical values. www.edureka.co
ABS
ACOS
ASIN
ATAN
CEILING
COS
COT
DEGREES
DIV
EXP
FLOORS
HEXBIN
LN
LOG
MAX
MIN
PI
POWER
RADIANS
ROUND
SIGN
SIN
SQRT
SQUARE
TAN
ZN
1. Number Functions

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Function Syntax Description
ABS ABS(number) Returns the absolute value
of the given number.
Example:
ABS([Budget Variance])
1. Number Functions

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ACOS ACOS(number) Returns the arc cosine of
the given number in
Radians.
Example:
ACOS(-1) = 3.1415926
1. Number Functions

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ASIN ASIN(number) Returns the arc sine of the
given number in Radians.
Example:
ASIN(1) = 1.5707963
1. Number Functions

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ATAN ATAN(number) Returns the arc tangent of
the given number in
Radians.
Example:
ATAN(180) = 1.5652408
1. Number Functions

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CEILING CEILING(number) Rounds a number to the
nearest integer of equal or
greater value.
Example:
CEILING(3.1415) = 4
1. Number Functions

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COS COS(number) Returns the cosine of an
angle. Specify the angle in
radians.
Example:
COS(PI( ) /4) = 0.707106
1. Number Functions

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COT COT(number) Returns the cotangent of
an angle. Specify the angle
in radians.
Example:
COT(PI( ) /4) = 1
1. Number Functions

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DEGREES DEGREES(number) Converts a given number
in radians to degrees.
Example:
DEGREES(PI( )/4) = 45.0
1. Number Functions

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DIV DIV(integer1, integer2) Returns the integer part of
a quotient, where integer1
is divided by integer2.
Example:
DIV(11,2) = 5
1. Number Functions

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EXP EXP(number) Returns e raised to the
power of the given
number.
Examples:
EXP(-[Growth Rate]*[Time])
1. Number Functions

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FLOOR FLOOR(number) Rounds a number to the
nearest integer of equal or
lesser value.
Example:
FLOOR(3.1415) = 3
1. Number Functions

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HEXBIN HEXBINX/Y(number,
number)
These are binning and
plotting functions for
hexagonal bins.
Example:
HEXBINX([Longitude],
[Latitude])
1. Number Functions

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LN LN(number) Returns the natural
logarithm of a number.
Returns Null if number is
less than or equal to 0.
1. Number Functions

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LOG LOG(number, [base]) Returns the logarithm of a
number for the given base.
If the base value is
omitted, base 10 is used.
1. Number Functions

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MAX MAX(number, number) Returns the maximum of
the two arguments of the
same type.
Example:
MAX(Sales,Profit)
1. Number Functions

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MIN MIN(number, number) Returns the minimum of
the two arguments of the
same type.
Example:
MAX(Sales,Profit)
1. Number Functions

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PI PI( ) Returns the numeric
constant pi: 3.14159.
1. Number Functions

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POWER POWER(number, power) Raises the number to the
specified power.
Example:
POWER(5,2) = 5^2 =
25
1. Number Functions

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RADIANS RADIANS(number) Converts the given number
from degrees to radians.
Example:
RADIANS(180) = 3.14159
1. Number Functions

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ROUND ROUND(number, [decimals]) Rounds numbers to a
specified number of digits.
Example:
ROUND(Sales)
1. Number Functions

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SIGN SIGN(number) Returns the sign of a
number.
Example: If the average of
the profit is negative, then
SIGN(AVG(Profit)) = -1
1. Number Functions

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SIN Sin(number) Returns the sine of an
radians.
Example:
SIN(PI( ) /4) = 0.707106
1. Number Functions

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SQRT SQRT(number) Returns the square root of
a number.
Example:
SQRT(25) = 5
1. Number Functions

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SQUARE SQUARE(number) Returns the square of a
number.
Example:
SQUARE(5) = 25
1. Number Functions

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TAN TAN(number) Returns the tangent of an
radians.
Example:
TAN(PI ( )/4) = 1.0
1. Number Functions

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ZN ZN(expression) Returns the expression if it
is not null.
Example:
ZN([Profit]) = [Profit]
1. Number Functions

String
Functions
2.
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2. String Functions

String functions allow you to manipulate string data.You can do things
like pull all the last names from all your customers into a new field
using this function. www.edureka.co
ASCII
CHAR
CONTAINS
ENDSWITH
FIND
FINDNTH
LEFT
LEN
LOWER
LTRIM
MAX
MID
MIN
REPLACE
RIGHT
RTRIM
SPACE
SPLIT
STARTSWITH
TRIM
UPPER
2. String Functions

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ASCII ASCII(string) Returns the ASCII code for
the first character
of string.
Example:
ASCII('A') = 65
2. String Functions

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CHAR CHAR(number) Returns the character
encoded by the ASCII
code number.
Example:
CHAR(65) = 'A'
2. String Functions

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CONTAINS CONTAINS(string, substring) Returns true if given string
contains specified substring.
Example:
CONTAINS(“Calculation”,
“alcu”) = true
2. String Functions

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ENDSWITH ENDSWITH(string, substring) Returns true if given string
ends with given substring.
Example:
ENDSWITH(“Tableau”,
“leau”) = true
2. String Functions

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FIND FIND(string, substring,
[start])
Returns the index position
of substring in string.
Example:
FIND("Calculation", "a", 3)
= 7
2. String Functions

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FINDNTH FINDNTH(string, substring,
occurrence)
Returns the position of Nth
occurrence of substring.
Example:
FIND("Calculation", "a", 2)
= 7
2. String Functions

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LEFT LEFT(string, number) Returns the left-most
substring in the string.
Example:
LEFT("Matador", 4) =
"Mata"
2. String Functions

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LEN LEN(string) Returns the length of the
string.
Example:
LEN("Matador") = 7
2. String Functions

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LOWER LOWER(string) Returns string, with all
characters lowercase.
Example:
LOWER("ProductVersion")
= "productversion"
2. String Functions

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LTRIM LTRIM(string) Returns the string with any
leading spaces removed.
Example:
LTRIM(" Matador ") =
"Matador "
2. String Functions

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MAX MAX(a, b) Returns the maximum of a
and b.
Example: MAX
("Apple","Banana") =
"Banana"
2. String Functions

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MID (MID(string, start, [length]) Returns the string starting
at index position start.
Example: MID("Calculation",
2, 5) ="alcul"
2. String Functions

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MIN MIN(a, b) Returns the minimum of a
and b.
Example: MIN
("Apple","Banana") =
“Apple"
2. String Functions

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RIGHT RIGHT(string, number) Returns the right-most
substring in a string.
Example:
RIGHT("Calculation", 4) =
"tion"
2. String Functions

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RTRIM RTRIM(string) Returns string with any
trailing spaces removed.
Example:
RTRIM(" Calculation ") =
" Calculation"
2. String Functions

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SPACE SPACE(number) Returns a string that has
the specified number of
repeated spaces.
Example:
SPACE(1) = " "
2. String Functions

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SPLIT SPLIT(string, delimiter,
token number)
Returns a substring from
input, using a delimiter to
divide it.
Examples:
SPLIT (‘a-b-c-d’,‘-‘, 2) =
‘b’
2. String Functions

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TRIM TRIM(string) Returns the string with no
leading and trailing spaces.
Example:
TRIM(" Calculation ") =
"Calculation"
2. String Functions

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UPPER UPPER(string) Returns string, with all
characters uppercase.
Example:
UPPER("Calculation") =
"CALCULATION"
2. String Functions

Date
Functions
3.
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3. Date Functions

Date functions allow you to manipulate Dates in your data source such
as year, month, date, day and/or time.
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DATEADD
DATEDIFF
DATENAME
DATEPART
DATETRUNC
DAY
ISDATE
MAKEDATE
MAKEDATETIME
MAKETIME
MAX
MIN
MONTH
NOW
TODAY
YEAR
3. Date Functions

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DATEADD DATEADD(date_part,
interval, date)
Returns the specified date
with number intervals.
Example: DATEADD('month',
3, #2004-04-15#) =
2004-07-15 12:00:00 AM
3. Date Functions

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DATEDIFF DATEDIFF(date_part, date1,
date2, [start_of_week])
Returns the difference
between date1 and date2.
Example: DATEDIFF('week',
#2013-09-22#, #2013-
09-24#, 'monday')= 1
3. Date Functions

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DATENAME DATENAME(date_part, date,
[start_of_week])
Returns date-part of the
date as a string.
Example: DATENAME('year',
#2004-04-15#) =
"2004"
3. Date Functions

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DATEPART DATEPART(date_part, date,
[start_of_week])
Returns date_part of date
as an integer.
Example: DATEPART('year',
#2004-04-15#) = 2004
3. Date Functions

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DATETRUNC DATETRUNC(date_part, date,
[start_of_week])
Truncates the specified date
specified by the date_part.
Example:
DATETRUNC('quarter',
#2004-08-15#) = 2004-
07-01 12:00:00 AM
3. Date Functions

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DAY DAY(date) Returns the day of the
given date as an integer.
Example:
DAY(#2004-04-12#) = 12
3. Date Functions

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ISDATE ISDATE(string) Returns true if a given
string is a valid date.
Example:
ISDATE("April 15, 2004") =
true
3. Date Functions

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MAKEDATE MAKEDATE(year, month, day) Returns a date value
constructed from the
specified year, month, and
date.
Example: MAKEDATE(2004, 4,
15) = #April 15, 2004#
3. Date Functions

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MAKEDATETIME MAKEDATETIME(date, time) Returns a combination of
date and time.
Example:
MAKEDATETIME([Date],
[Time]) = #1/1/2001
6:00:00 AM#
3. Date Functions

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MAKETIME MAKETIME(hour, minute,
second)
Returns a date value
constructed from hour,
minute, and second.
Example: MAKETIME(14, 52,
40) = #14:52:40#
3. Date Functions

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MAX MAX(a, b) Returns the maximum of a
and b.
Example: MAX(#2004-01-
01# ,#2004-03-01#) =
2004-03-01 12:00:00 AM
2. String Functions

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MIN MIN(a, b) Returns the minimum of a
and b.
Example: MIN(#2004-01-
01# ,#2004-03-01#) =
2004-01-01 12:00:00 AM
2. String Functions

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MONTH MONTH(date) Returns the month of the
Example:
MONTH(#2004-04-15#) =
4
3. Date Functions

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NOW NOW( ) Returns the current date
and time.
Example:
NOW( ) = 2004-04-15
1:08:21 PM
3. Date Functions

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TODAY TODAY( ) Returns the current date.
Example:
TODAY( ) = 2004-04-15
3. Date Functions

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YEAR YEAR (date) Returns the year of the
Example:
YEAR(#2004-04-15#) =
2004
3. Date Functions

Type
Conversion
Functions
4.
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4. Type Conversion Functions

Type conversion functions allow you to convert fields from one data
type to another, e.g, you can convert numbers to strings, to prevent or
enable aggregation by Tableau. www.edureka.co
DATE
DATETIME
DATEPARSE
FLOAT
INT
STR

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DATE DATE(expression) Returns a date given a
number, string or date.
Example: DATE("April 15,
2004") = #April 15,
2004#

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DATETIME DATETIME(expression) Returns a datetime given a
number, string, or date.
Example: DATETIME(“April
15, 2005 07:59:00”) =
April 15, 2005 07:59:00

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DATEPARSE DATEPARSE(format, string) Returns a datetime in the
specified format.
Example: DATEPARSE
("dd.MMMM.yyyy",
"15.April.2004") = #April
15, 2004#

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FLOAT FLOAT(expression) Casts its argument as a
floating point number.
Example:
FLOAT(3) = 3.000

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INT INT(expression) Casts its argument as an
integer.
Example: INT(8.0/3.0) = 2

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STR STR(expression) Casts its argument as a
string.
Example: STR([Age])

Aggregate
Functions
5.
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5. Aggregate Functions

Aggregate functions allow you to summarize or change the granularity
of your data.
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ATTR
AVG
COLLECT
CORR
COUNT
COUNTD
LEFT
LEN
LOWER
LTRIM
COVAR
COVARP
MAX
MEDIAN
MIN
PERCENTILE
STDEV
STDEVP
SUM
VAR
VARP

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ATTR ATTR(expression) Returns the value of the
expression if it has a single
value for all rows.

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AVG AVG(expression) Returns the average of all
the values in the expression.
Example: AVG(Sales)

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CORR CORR(expression 1,
expression2)
Returns the Pearson
correlation coefficient of
two expressions.
Example: {CORR(Sales,
Profit)}

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COUNT COUNT(expression) Returns the number of
items in a group.

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COUNTD COUNTD(expression) Returns the number of
distinct items in a group.

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COVAR COVAR(expression 1,
expression2)
Returns the sample
covariance of two
expressions.
Example: COVAR([Sales],
[Profit])

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COVARP COVARP(expression 1,
expression2)
Returns the population
covariance of two
expressions.
Example: COVAR([Sales],
[Profit])

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MAX MAX(expression) Returns the maximum
expression across all
records.

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MEDIAN MEDIAN(expression) Returns the median
records.

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MIN MIN(expression) Returns the minimum
records.

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PERCENTILE PERCENTILE(expression,
number)
Returns the percentile value
from the given expression
corresponding to the
specified number.

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STDEV STDEV(expression) Returns the statistical
standard deviation of all
values in the given
expression based on a
sample of the population.

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STDEVP STDEVP(expression) Returns the statistical
standard deviation of all
values in the given
expression based on a
biased population.

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SUM SUM(expression) Returns the sum of all
values in the expression.

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VAR VAR(expression) Returns the statistical
variance of all values in the
given expression based on a
sample of the population.

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VARP VARP(expression) Returns the statistical
variance of all values in the
given expression based on
the entire population.

User
Functions
6.
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6. User Functions

User functions are used to create user filters/row-level security filters
that affect visualizations published to Tableau Server or Tableau Online,
so that only particular people can see your visualization. www.edureka.co
6. User Functions
FULLNAME
ISFULLNAME
ISMEMBEROF
ISUSERNAME
USERDOMAIN
USERNAME

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FULLNAME FULLNAME( ) Returns the full name for
the current user.
Example:
[Manager]=FULLNAME( )
6. User Functions

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ISFULLNAME ISFULLNAME( ) Returns true if the current
user's full name matches
the specified full name.
Example:
ISFULLNAME(“Shubham
Sinha” )
6. User Functions

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ISMEMBEROF ISMEMBEROF(string) Returns true if the person
currently using Tableau is a
member of a group that
matches the given string.
Example:
ISMEMBEROF(“Sales”)
6. User Functions

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ISUSERNAME ISUSERNAME(string) Returns true if the current
user's username matches
the specified username
Example:
ISUSERNAME(“Sinha”)
6. User Functions

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USERDOMAIN USERDOMAIN() Returns the domain for the
current user when signed
into Tableau Server.
Example:
[Domain]=USERDOMAIN()
6. User Functions

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USERNAME USERNAME() Returns the username of
the current user.
Example:
[Manager]=USERNAME()
6. User Functions

Logical
Functions
7.
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7. Logical Functions

Logical calculations allow you to determine if a certain condition is true
or false (Boolean logic)
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AND
CASE
ELSE
ELSEIF
END
IF
IFNULL
IIF
ISDATE
ISNULL
MAX
MIN
NOT
OR
THEN
WHEN
ZN

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AND IF <expr1> AND
<expr2> THEN <then>
END
Performs a logical ‘and’ on
two expressions.
Example: IF (ATTR([Market])
= "Africa" AND
SUM([Sales]) > [Emerging
Threshold] )THEN "Well
Performing"

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CASE CASE <expression>
WHEN <value1> THEN
<return1>
WHEN <value2> THEN
<return2> ...
ELSE <default return>
END
Performs logical tests and
returns appropriate values.
Example: CASE [Region]
WHEN 'West' THEN 1
WHEN 'East' THEN 2 ELSE
3 END

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ELSE IF <expr> THEN <then>
ELSE <else> END
Tests a series of expressions
returning the <then>
value for a true <expr>.
Example: If [Profit] > 0
THEN 'Profitable' ELSE
'Loss' END

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ELSEIF IF <expr> THEN <then>
[ELSEIF <expr2> THEN
<then2>...] [ELSE
<else>] END
Tests an expression for the
<then> value for true
<expr>.
Example: IF [Profit] > 0
THEN 'Profitable' ELSEIF
[Profit] = 0 THEN
'Breakeven' ELSE 'Loss’ END

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END IF <expr> THEN <then>
<then2>...] [ELSE
<else>] END
Marks the end of an
expression.
Example:
IF [Profit] > 0 THEN
'Profitable' ELSEIF [Profit]
= 0 THEN 'Breakeven'
ELSE 'Loss' END

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IF IF <expr> THEN <then>
<then2>...] [ELSE
<else>] END
Tests an expression
returning <then> value
for a true <expr>.
Example:
IF [Profit] > 0 THEN
'Profitable' ELSE 'Loss’ END

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IFNULL IFNULL(expr1, expr2) Returns <expr1> if it is
not null, otherwise returns
<expr2>.
Example:
IFNULL([Profit], 0)

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IIF IIF(test, then, else,
[unknown])
Checks condition; returns
first value if TRUE, second
if FALSE, and third if
unknown.
Example: IIF([Profit] > 0,
'Profit', 'Loss')

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ISDATE ISDATE(string) Returns true if a given
string is a valid date.
Example:
ISDATE("2004-04-15") =
True

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ISNULL ISNULL(expression) Returns true if expression is
Null.
Example:
ISNULL([Profit])

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MAX MAX(expression) Returns the maximum of
the all records.
Example:
MAX(Profit)

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MIN MIN(expression) Returns the minimum of
the all records.
Example:
MAX(Profit)

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NOT IF NOT <expr> THEN
<then> END
Performs logical negation on
an expression.
Example: IF NOT [Profit] >
0 THEN "Unprofitable" END

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OR IF <expr1> OR <expr2>
THEN <then> END
Performs a logical ‘or’ on
two expressions.
Example: IF [Profit] < 0
OR [Profit] = 0 THEN
"Needs Improvement" END

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THEN IF <expre> THEN
<then> [ELSEIF ,expr2>
THEN <then2>...] [ELSE
<else>] END
Tests an expression
returning <then> for true
<expr>.
Example: IF [Profit] > 0
THEN 'Profitable’ END

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WHEN CASE <expr> WHEN
<Value1> THEN
<return1> ... [ELSE
<else>] END
Finds the first <value> =
<expr> and returns value.
Example: CASE [ ] WHEN 'I'
THEN 1 ELSE 2 END

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ZN ZN(expression) Returns <expression> if it
is not null, otherwise
returns zero.
Example:
ZN([Profit])

What are Tableau Functions? Edureka

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