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The payback period in capital budgeting refers to the period required for the return on an investment to "repay" the sum of the original investment. Payback period, as a tool of analysis, is often used because it is easy to apply and understand for most individuals, regardless of academic training or field of endeavor. When used carefully or when comparing similar investments, it can be quite useful. All else being equal, shorter payback periods are preferable to longer payback periods. As a ...

In practice, data rarely comes in the form of ready-to-use matrices. That's why every task begins with feature extraction. Sometimes, it can be enough to read the csv file and convert it into numpy.array, but this is a rare exception. Let's look at some of the popular types of data from which features can be extracted. TEXTS Text is a type of data that can come in different formats; there are so many text processing methods that cannot fit in a single article. Nevertheless, we will review the...

Outliers are data points that deviate significantly from other observations in the dataset. They can be the result of errors or true anomalies, and handling them appropriately is essential for accurate analysis. Below are some common methods for handling outliers: * VISUAL INSPECTION: Using plots like box plots or scatter plots to identify outliers visually. * STATISTICAL METHODS: Using standard deviations, interquartile range (IQR), or z-scores to detect outliers. * DECISION ON HANDLING: Dec...