توابع عددی (Number Functions) و کاربردهای آنها را در نرم افزار تبلو

Returns the absolute value of the given number.

Examples:

ABS(-7) = 7
ABS([Budget Variance])

The second example returns the absolute value for all the numbers contained in the Budget Variance field.

Returns the arc cosine of the given number. The result is in radians.

Example:

ACOS(-1) = 3.14159265358979

Returns the arc sine of a given number. The result is in radians.

Example:

ASIN(1) = 1.5707963267949

Returns the arc tangent of a given number. The result is in radians.

Example:

ATAN(180) = 1.5652408283942

Returns the arc tangent of two given numbers (x and y). The result is in radians.

Example:

ATAN2(2, 1) = 1.10714871779409

Returns the cosine of an angle. Specify the angle in radians.

Example:

COS(PI( ) /4) = 0.707106781186548

Returns the cotangent of an angle. Specify the angle in radians.

Example:

COT(PI( ) /4) = 1

Converts a given number in radians to degrees.

Example: DEGREES(PI( )/4) = 45.0

Tableau

Returns the integer part of a division operation, in which integer1 is divided by integer2.

Example:

DIV(11,2) = 5

Returns e raised to the power of the given number.

Examples:

EXP(2) = 7.389
EXP(-[Growth Rate]*[Time])

تبلو

Maps an x, y coordinate to the x-coordinate of the nearest hexagonal bin. The bins have side length 1, so the inputs may need to be scaled appropriately.

HEXBINX and HEXBINY are binning and plotting functions for hexagonal bins. Hexagonal bins are an efficient and elegant option for visualizing data in an x/y plane such as a map. Because the bins are hexagonal, each bin closely approximates a circle and minimizes variation in the distance from the data point to the center of the bin. This makes the clustering both more accurate and informative.

Example:

HEXBINX([Longitude], [Latitude])

Maps an x, y coordinate to the y-coordinate of the nearest hexagonal bin. The bins have side length 1, so the inputs may need to be scaled appropriately.

Example:

HEXBINY([Longitude], [Latitude])

Returns the natural logarithm of a number. Returns Null if number is less than or equal to 0.

Returns the logarithm of a number for the given base. If the base value is omitted, base 10 is used.

تابع عددی تبلو

Returns the maximum of the two arguments, which must be of the same type. Returns Null if either argument is Null. MAX can also be applied to a single field in an aggregate calculation.

Examples:

MAX(4,7)
MAX(Sales,Profit)
MAX([First Name],[Last Name])

Returns the minimum of the two arguments, which must be of the same type. Returns Null if either argument is Null. MIN can also be applied to a single field in an aggregate calculation.

Examples:

MIN(4,7)
MIN(Sales,Profit)
MIN([First Name],[Last Name])

PI( )

Returns the numeric constant pi: 3.14159.

Raises the number to the specified power.

Examples:

POWER(5,2) = 52 = 25
POWER(Temperature, 2)

You can also use the ^ symbol:

5^2 = POWER(5,2) = 25

Converts the given number from degrees to radians.

Example: RADIANS(180) = 3.14159

توابع عددی (Number Functions)

Rounds numbers to a specified number of digits. The decimals argument specifies how many decimal points of precision to include in the final result. If decimals is omitted, number is rounded to the nearest integer.

Example:

This example rounds every Sales value to an integer:

ROUND(Sales)

Some databases, such as SQL Server, allow specification of a negative length, where -1 rounds number to 10’s, -2 rounds to 100’s, and so on. This is not true of all databases. For example, it is not true of Excel or Access.

Returns the sign of a number: The possible return values are -1 if the number is negative, 0 if the number is zero, or 1 if the number is positive.

Example:

If the average of the profit field is negative, then

SIGN(AVG(Profit)) = -1

Returns the sine of an angle. Specify the angle in radians.

Examples:

SIN(0) = 1.0
SIN(PI( )/4) = 0.707106781186548

Returns the square root of a number.

Example: SQRT(25) = 5

Number Functions

Returns the square of a number.

Example:

SQUARE(5) = 25

Returns the tangent of an angle. Specify the angle in radians..

Example:

TAN(PI ( )/4) = 1.0

Returns the expression if it is not null, otherwise returns zero. Use this function to use zero values instead of null values.

Example:

ZN([Profit]) = [Profit]