Apache Pig - SINH()
The SINH() function is used to calculate the hyperbolic sine value of a given expression.
Syntax
Here is the syntax of the SINH() function.
grunt> SINH(expression)
Example
Assume that there is a file named math.txt in the HDFS directory /pig_data/. This file contains integer and floating point values as shown below.
math.txt
5 16 9 2.5 5.9 3.1
And, we have loaded this file into Pig with a relation named math_data as shown below.
grunt> math_data = LOAD 'hdfs://localhost:9000/pig_data/math.txt' USING PigStorage(',') as (data:float);
Let us now calculate the hyperbolic sine values of the contents of the math.txt file using SINH() function as shown below.
grunt> sinh_data = foreach math_data generate (data), SINH(data);
The above statement stores the result in the relation named sinh_data. Verify the contents of the relation using the Dump operator as shown below.
grunt> Dump sinh_data; (5.0,74.20321057778875) (16.0,4443055.26025388) (9.0,4051.54190208279) (2.5,6.0502044810397875) (5.9,182.51738161672935) (3.1,11.076449978895173)