1. plotTraces, plot a time series, or multiple time series on one plot, with vertical lines indicating the markers (events). Can be used for data quality check and global signal detection. 2. plotTopoMap, plot a map of activation. 3. plot2, scatter p
http://www.wirelessandmobilenews.com/2010/01/nexus-one-android-an-droid-tips-2day-status-icon-meanings.html
Assume the formula is A1+B1, and you want to keep B1 fixed for other rows, then use A1 + $B$1
