How can I use Machine learning for inter-relationship between Features?
I use pair plots to study the inter-relationship between features. Pair plot gives the first level information of the features. Seaborn library has pairplot function and even matplotlib has the same.

Another thing you can use heatmap which gives the co-relation between features, by using heat map we can see features that are high co-related and may eliminate one of them. As a word of caution you must good reason or domain knowledge to drop a feature