the plt alias is for matplotlib pyplot we will discuss this more in the coming sectionfor now assume we require this to add-on enhancements to plots generated by pandas in this case we use it to add title to our plot the plot generated is depicted in figure - figure - line chart showing price trend for user though we can see visual representation of prices of different transactions by this userit is not helping us much let' now use the line chart again to understand how his/her purchase trends over time (remember we have date of transactions available in the datasetwe use the same plot interface by subsetting the dataframe to the two required attributes the following code snippet outlines the process df[df user_id =max_user_idplot( ='date', ='price',style='blue'plt title('price trends for particular user over time'this timesince we have two attributeswe inform pandas to use the date as our -axis and price as the -axis the plot interface handles datetime data types with elan as is evident in the following output depicted in figure -