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Validating numeric ranges

As a data analyst at a video game publisher, you need to validate sales data across your game catalog. Video game sales can vary dramatically. Invalid data could mislead strategic decisions about which games to develop or promote. By implementing range validation, you can quickly identify suspicious sales figures that might indicate data entry errors. You've extracted sample sales quantities from a video game dataset below. Set up range checks on this data.

Game Platform Release date Quantity (millions of units)
Wii Sports Wii 11/19/2006 41.49
Super Mario Bros. NES 11/13/1985 29.08
Mario Kart Wii Wii 4/10/2008 15.85

Este exercício faz parte do curso

Cleaning Data in Java

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Instruções do exercício

  • Get the minimum and maximum of quantities.
  • Define ranges for low and high sales quantities.
  • Check if the quantity is in the low range.
  • Check if the quantity is in the high range.

Exercício interativo prático

Experimente este exercício completando este código de exemplo.

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.commons.lang3.Range;

public class RangeValidation {
    public static void main(String[] args) {
        List quantities = Arrays.asList(41.49, 29.08, 15.85);

        // Get the minimum and maximum quantities
        Double minQuantity = ____.____(quantities);
        Double maxQuantity = ____.____(quantities);

        System.out.println("Quantity range: " + minQuantity + " - " + maxQuantity);

        // Define ranges for low and high quantities
        Range lowQuantities = ____.____(0.0, 25.0);
        Range highQuantities = ____.____(25.0, 50.0);

        for (Double quantity : quantities) {
            // Check if the quantity is low
            if (____.____(quantity)) {
                System.out.println(quantity + " - Low quantity");
            // Check if the quantity is high
            } else if (____.____(quantity)) {
                System.out.println(quantity + " - High quantity");
            } else {
                System.out.println(quantity + " - Out of expected range");
            }
        }
    }
}
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