MACHINE LEARNING RECIPES
DATA CLEANING PYTHON
DATA MUNGING
PANDAS CHEATSHEET
ALL TAGS
How to hash a pandas array?
How to hash a pandas array?
This recipe helps you hash a pandas array
Recipe Objective
Suppose we have a code in form of string and we want to run it replacing values of variables. It can be achieved via eval function.
So this recipe is a short example on What does eval do and When can it be used. Let's get started.
Step 1 - Import the library
import pandas as pd
Let's pause and look at these imports. Pandas is generally used for performing mathematical operation and preferably over arrays.
Step 2 - Setup the Data
expression='x*(x+1)*(x+2)'
x=4
Here we have setup one string and assigned a constant value to a variable.
Step 3 - Calculative eval()
eval(expression)
Simply pass the string expression into eval() function.
Step 4 - Let's look at our dataset now
Once we run the above code snippet, we will see:
120
Value of x has been simply passed into our mathematical expression for further calculation.
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