log log graphs

[ehsan ali]

this thread is to learn something about log-log graphs.
I was thinking why the lines in a cycle of log are placed at different distanced from each other???
Anyone who knows this???
Share it........

[newnesy]

It is so that you can plot values of items that would not fit together on a normal scaled graph. If the distance between the lines where equal then the scales on the axes could not be shown in ascending powers of 10. ie it could only ascend by the unit scale.

[vinomarky]

Log-log paper is simply a graphical way of taking logs of your data to be plotted

If we are talking base 10 logs, then;
Log(10) = 1
Log(100) = 2
Log(1000) = 3
etc

As you can see, in log space, the 'distance' between 10 and 100 is the same as the 'distance' between 100 and 1000. Log paper just allows you to plot the 10, 100, 1000 without doing a mathematical transform first (applying a geometric transform instead I guess)

You will get the same shape plot if you actaully takes logs first, and then plot linearly