You wish to build a patio on the house, on the side of the house that will be most sheltered from the winds. A scatterplot is usually a good technique for exploring how two different kinds of data interact. We want find out if there are certain wind directions where the wind speed is nearly always slow. In other words, we want to look at wind speed as a function of wind direction. Wind direction is our independent variable, so it goes on the horizontal axis.
Wind speed is our dependent variable, so it goes on the vertical axis.
A low dip in the scattered data marks one direction which almost never has strong winds. Building your patio on the eastern side of the house would be a good plan. There is one other interesting data display you can make with the Harvester that bears on this problem. Notice that the warm balmy days, the days on which you're likely to want to use your patio, are shown in reds and warmer colors. Frigid days, on which you won't want to use your patio anyway, are shown in blues and cooler colors.