A sample analysis on a dataset where you know and understand nothing! Recently, I took the opportunity to work on a competition held by Wells Fargo (Mindsumo).
Recently, I took the opportunity to work on a competition held by Wells Fargo (Mindsumo). The dataset provided was just a bunch of numbers in various columns with no indication of what the data might be. I always thought that the analysis of data required some knowledge and understanding of the data and the domain to perform an efficient analysis. I have attached a sample below. It consisted of columns from X0 to X29 which consisted of continuous values and XC which consisted of categorical data i.e. 30 variables in total. I set out on further analysis on the entire dataset to understand the data.
I used the QQ plot to determine the normality distribution of the variables and understand if there is any skew in the data. All the data points were normally distributed with very less deviation which required no processing of the data to be done at this point to attain a Gaussian distribution. I prefer a QQ plot for the initial analysis because it makes it very easy to analyze the data and determine the type of distribution be it Gaussian distribution, uniform distribution, etc.
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