January 9, 2011

We were taught on how to graph a scatter plot. A scatter plot should have an x and y axis labels and the units should be indicated, and the title (y vs. x). A caption may also be written. the range of the graph should be chosen for maximum readability. It means the points on the graph should not be too small nor too big. The y axis should be the dependent variable and the y axis should be on the x axis.
I also learned about how to put error bars on the graph that represents absolute uncertainties of a data point. the data points represents the expectation values. Below is an example of a scatter plot.

Trend lines and linear fits can also be drawn on the graph and the equation of the line should be written.