# Error Bars on Log graphs.

1. Apr 20, 2012

### Fluorescent

I think this is probably the right place to put it, didn't really fit anywhere else.

I've got the joyless task of writing a lab report at university and need to put a graph in it, ideally with error bars. I don't have a problem with error bars normally, but I'm coming unstuck about what to do in this case.

I have the equation: $ln\frac{I_{REF}}{I} = \frac{-hv}{k}[\frac{1}{T_{REF}} - \frac{1}{T}]$. This is in the form y=mx.

If I were to have values for the errors in I and T, how would I convert these into the errors of Log(I) and Log(T) and thus graph them?