Numeric (Advanced) Operators :: SAS(R) Visual Analytics 6.3: User's Guide

Abs

returns the absolute value of the input value.

For example, Abs(-3) returns 3.

Ceil

rounds the input value up to the nearest integer.

For example, Ceil(4.2) returns 5 and Ceil(–4.8) returns -4.

Exp

raises the constant e to the power specified by the input value.

For example, Exp(5) returns e to the 5th power (148.41).

Floor

rounds the input value down to the nearest integer.

For example, Floor(4.8) returns 4 and Floor(-4.2) returns -5.

Ln

returns the natural logarithm (base e) of the input value.

For example, Ln(10) returns the eth root of 10 (2.30...).

Log

returns the logarithm of the first value, where the second value specifies the base.

For example,

64
                              Log 8

returns the base 8 logarithm of 64 (2).

Mod

returns the remainder after dividing the first value by the second value.

For example,

5
                              Mod 2

returns 1.

Power

raises the first value to the power of the second value.

For example,

5
                              Power 2

returns 5 to the 2nd power (25).

Root

returns the nth root of the first value, where the second value specifies n (the base of the root).

For example,

27
                              Root 3

returns the 3rd (cube) root of 27 (3).

Round

rounds the first value to the number of decimal places that is specified by the second value. Select the second value from the drop-down list.

For example,

7.354
                              Round 2

returns 7.35.

Note: If you select 0 decimal places, then the values are rounded to the nearest integer.

TreatAs

allows a numeric, date, or datetime value to be used as a different data type within other operators. Select one of the following:

_Date_

allows the value to be used as a date.

_Datetime_

allows the value to be used as a datetime value.

_Number_

allows the value to be used as a number.

_Time_

allows the value to be used as a time value.

The value is treated as a raw value instead of being converted. Date values are the number of days since 01JAN1960. Datetime values are the number of seconds since 01JAN1960. Time values are the number of seconds since midnight.

For example,

TreatAs(_Date_,
                              19600)

returns 30AUG2013 as a date value.

Note: The TreatAs operator is useful for calculating elapsed time between two datetime values. For example,

(TreatAs(_Number_, '23OCT2013'd)
                              — TreatAs(_Number_, '15JAN2013'd))

calculates the number of days between 15JAN and 23OCT, which is 281.

Trunc

truncates the input value to an integer.

For example, Trunc(8.9) returns 8 and Trunc(-8.9) returns -8.