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Data Forecasting and Segmentation Using Microsoft Excel

Data Forecasting and Segmentation Using Microsoft Excel

By : Roque
4.8 (6)
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Data Forecasting and Segmentation Using Microsoft Excel

Data Forecasting and Segmentation Using Microsoft Excel

4.8 (6)
By: Roque

Overview of this book

Data Forecasting and Segmentation Using Microsoft Excel guides you through basic statistics to test whether your data can be used to perform regression predictions and time series forecasts. The exercises covered in this book use real-life data from Kaggle, such as demand for seasonal air tickets and credit card fraud detection. You’ll learn how to apply the grouping K-means algorithm, which helps you find segments of your data that are impossible to see with other analyses, such as business intelligence (BI) and pivot analysis. By analyzing groups returned by K-means, you’ll be able to detect outliers that could indicate possible fraud or a bad function in network packets. By the end of this Microsoft Excel book, you’ll be able to use the classification algorithm to group data with different variables. You’ll also be able to train linear and time series models to perform predictions and forecasts based on past data.
Table of Contents (19 chapters)
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1
Part 1 – An Introduction to Machine Learning Functions
5
Part 2 – Grouping Data to Find Segments and Outliers
10
Part 3 – Simple and Multiple Linear Regression Analysis
14
Part 4 – Predicting Values with Time Series

Building and training the forecast model

We are going to use the car sales for the years 2012 to 2015 to design and train the time-series forecast model. We saw in the previous section that this data has autocorrelation. The steps for designing the model are as follows:

  1. Calculate the moving average for two quarter periods.
  2. Get the center moving average of the preceding step.
  3. Calculate the separation between the quarter sales and the center moving average for each record. This separation between the quarter sales and center moving average is the fluctuation of sales over time.
  4. Get the seasonal trend for each record by averaging the fluctuation for each quarter.
  5. Compute the trend with the regression line of the quarterly sales.
  6. Calculate the forecast by multiplying the season trend by the regression for each record.

Calculate the moving average and the center moving average for the data to get the chart shown in Figure 13.4. The center moving average...

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Data Forecasting and Segmentation Using Microsoft Excel
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