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Removing and Replacing | Preprocessing Data: Part II
Analyzing and Visualizing Real-World Data

Removing and ReplacingRemoving and Replacing

As mentioned previously, there are two ways to perform removing or replacing operations. Since we used the .str accessor two chapters ago, let's use a lambda function this time.

Task

  1. Define a lambda function with a single argument x that will:
    • Remove the '$' characters starting from the left (using the .lstrip() method);
    • Replace all blank spaces (' ') with empty strings ('') (using the .replace() method);
    • Assign the function to the rmv_rpl variable.
  2. Apply the rmv_rpl function to the 'Weekly_Sales' column using the .apply() method and convert it to the float data type.

Everything was clear?

Section 2. Chapter 2
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course content

Course Content

Analyzing and Visualizing Real-World Data

Removing and ReplacingRemoving and Replacing

As mentioned previously, there are two ways to perform removing or replacing operations. Since we used the .str accessor two chapters ago, let's use a lambda function this time.

Task

  1. Define a lambda function with a single argument x that will:
    • Remove the '$' characters starting from the left (using the .lstrip() method);
    • Replace all blank spaces (' ') with empty strings ('') (using the .replace() method);
    • Assign the function to the rmv_rpl variable.
  2. Apply the rmv_rpl function to the 'Weekly_Sales' column using the .apply() method and convert it to the float data type.

Everything was clear?

Section 2. Chapter 2
toggle bottom row
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