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Trifacta Dataprep


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This example illustrates how to apply basic trigonometric functions to your transformations. All of the functions take inputs in radians.

Source:

In the following sample, input values are in degrees:


X
-30
0
30
45
60
90
120
135
180


Transformation:

In this example, all values are rounded to three decimals for clarity.

First, the above values in degrees must be converted to radians. 

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(radians(X), 3)
Parameter: New column name 'rX'

Sine:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(sin(rX), 3)
Parameter: New column name 'SINrX'

Cosine:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(cos(rX), 3)
Parameter: New column name 'COSrX'

Tangent:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(tan(rX), 3)
Parameter: New column name 'TANrX'

Cotangent:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(1 / tan(rX), 3)
Parameter: New column name 'COTrX'

Secant:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(1 / cos(rX), 3)
Parameter: New column name 'SECrX'

Cosecant:

Transformation Name New formula
Parameter: Formula type Single row formula
Parameter: Formula round(1 / sin(rX), 3)
Parameter: New column name 'CSCrX'


Results:

XrXCOTrXSECrXCSCrXTANrXCOSrXSINrX
-30-0.524-1.731.155-1.999-0.5780.866-0.5
00null1null010
300.5241.731.1551.9990.5780.8660.5
450.7851.0011.4141.4150.9990.7070.707
601.0470.5781.9991.1551.7310.50.866
901.5710-4909.8261-4909.82601
1202.094-0.577-2.0011.154-1.734-0.50.866
1352.356-1-1.4141.414-1-0.7070.707
1803.1422454.913-1-2454.9130-10

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