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What is SINH() function in Apache Pig ?

  • The SINH() function is used to calculate the hyperbolic sine value of a given expression
 apache pig sinh

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Syntax

grunt> SINH(expression)

Example

  • Ensure that we have a file named wikitechy_math.txt in the HDFS directory /pig_data/. This file contains integer and floating point values as given below.

wikitechy_math.txt

5 
16 
9 
2.5 
5.9 
3.1 
  • You have loaded this file into Pig with a relation named math_data as given below.
grunt> math_data = LOAD 'hdfs://localhost:9000/pig_data/wikitechy_math.txt' USING PigStorage(',')
   as (data:float);
  • Now you can generate the hyperbolic sine values of the contents of the wikitechy_math.txt file using SINH() function as given below.
grunt> sinh_data = foreach math_data generate (data), SINH(data);

Verification

Verify the contents of the relation using the Dump operator as given below.

grunt> Dump sinh_data;

Output

  • The above statement stores the result in the relation named 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)

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