Can someone explain the "Trend" to me?

In the weight tracking section. I don't really get what the trend means. Help?

The trend is an average of your logged weights.

Yep, I think its the average of your last 10 weights, so it evens out water weight and natural fluctuations.

The trend line enables you to see your real progress over time.  There will be peaks and valleys in the weights you log, but as long as the trend line slopes downward, you're fine.  I only look at the trend line, no matter what weight I log.  It saves a lot of agonizing.