EDA: Plotting earthquakes over time
Make a plot where the y-axis is the magnitude and the x-axis is the time of all earthquakes in Oklahoma between 1980 and the first half of 2017. Each dot in the plot represents a single earthquake. The time of the earthquakes, as decimal years, is stored in the NumPy array time, and the magnitudes in the NumPy array mags.
This exercise is part of the course
Case Studies in Statistical Thinking
Exercise instructions
- Plot the magnitude (
mags) versus time (time) usingplt.plot()with keyword argumentsmarker='.'andlinestyle='none'. Also use the keyword argumentalpha=0.1to make the points transparent to better visualize overlapping points. - Label the x-axis
'time (year)', y-axis'magnitude', and show the plot.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Plot time vs. magnitude
# Label axes and show the plot