
Python for Algorithmic Trading Cookbook
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Once you’ve loaded, manipulated, and transformed data in DataFrames, the next step is retrieving the data from DataFrames. This is where indexing and selecting data come into play. This functionality allows you to access data using methods such as iloc
and loc
and techniques such as Boolean indexing or query functions. These methods can target data based on its position, labels, or condition based on whether you’re after a specific row, column, or combination. Inspection enables potential issues to be identified, such as missing values, outliers, or inconsistencies, that can affect analysis and modeling. Additionally, an initial inspection provides insights into the nature of data, helping determine appropriate preprocessing steps and analysis methods.
Let’s start by downloading stock price data:
import pandas as pd from openbb import...