In this Ladybug Grasshopper tutorial, I will show you the basics. First I will show you how to install Ladybug and run the components. Then I will explain the energy plus weather files (EPW) and how they give us the most important information about temperature, humidity and wind. After making the sun path and defining the conditional statements we will also study wind rose and radiation rose graphs and the end we will optimize the orientation of a building base on radiation and surrounding buildings.