## Introduction

Time is continuous and we observe that, with changes in time, observations change, patterns emerge, and so do our results and conclusions. Our objective with visualizing time series or continuous data is to display visualizations that assist readers in understanding the magnitude and direction of the series. We have discussed interactive bar charts in the recipe *An interactive bar plot* in Chapter 2, *Basic and Interactive Plots*, and they provide us with details, which are as follows:

When in the past the stock price of Microsoft was the lowest

How often the higher prices are followed by higher prices or a dip

How a stock's price reacts to different events such as recession, dividend announcements, quarterly results, or significant economic news

Similar information can also be studied using calendar maps and line plots discussed in Chapter 7, *Data in Higher Dimensions*, and Chapter 2, *Basic and Interactive Plots*, respectively.

One of the objectives of generating an effective visualization...