Learning Outcomes
After completing this module you should be able to:
- Explain how log-transformation turns graphs of exponential growth into straight lines.
- Explain log-transformation of data into graphs by two methods:
- Log then graph: take the log of the data and then graph the transformed data on normal graph paper or,
- Graph then log: graph the untransformed data on semi-log paper and let the paper “take the log” of the data.
2: Method 1: log then graph
3: The curvy line turned into a straight line!
4: To transform or not to transform?
5: Method 2: graph then log
6: Graphing bigger (and smaller) numbers
7: Try it out
8: Just add realism
9: Summary