Exploratory Data Analysis (EDA) is a significant approach to analyzing datasets so as to derive critical findings and insights from the data. With the help of graphical tools and summary statistics, EDA helps one uncover any outliers in the dataset. Similarly, one can determine any relationship between variables, understand patterns, and apply statistical methods to come up with interesting hypotheses.
The steps involved in EDA
Get to Understand the Data: The initial step in EDA is to have a glimpse or idea of the basic features of the dataset. Such relates to the structure of the dataset i.e. the number of rows and columns, its data types, and observations. This can be made possible with the use of libraries such as pandas and their respective functions.
Clean the Dataset: The next critical step is to remove any missing values, duplicates, and standardize the data in a format that can be well understood. The significance of data cleaning lies in its ability to prepare the data for analysis. Failure to clean the data can lead to derive insights. Our findings need to be accurate hence data cleaning ensures that such is possible.
Dataset Distribution: There is need to figure out how the particular dataset is spread out. Dataset distribution is achieved with the help of descriptive statistics and creating relevant visualizations such as box plots, histograms, and density plots. Such visualizations can be created with the help of various libraries such as ggplot2 and Matplotlib.
Analyze Variable Relationships: The last critical step in EDA is to identify any relationships between variables in the dataset. Such relationships can be identified with the help of correlation matrices and scatter plots which aide in deriving any patters or correlations in between variables in the dataset. The significance of this step in EDA lies in its ability to uncover any potential hypothesis for further analysis.
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