Hello guys,

It may seem like a basic question, but this is causing confusion.

What is the difference between fold change and Log fold change?

Regards,

To follow up on the value added by the symmetry in log2-transformed fold changes, you might also look at a [volcano plot][1] of features, a common way to represent p-values vs log2-fold change. 

For example:

![enter image description here][2]

Symmetry makes visual interpretation of this type of plot — comparison and labeling of features with significant fold change 
and p-value thresholds — much simpler. One can see immediately which features are both statistically significant and likely to be significantly up- or down-regulated.


  [1]: https://en.wikipedia.org/wiki/Volcano_plot_(statistics)
  [2]: https://image.ibb.co/fC2B4S/volcano.png