Proksee News

GC Skew / GC Content Plots Update

Proksee now reports raw (unadjusted) values for base composition plots. These values can be obtained by hovering over plot regions, and summary statistics (minimum, maximum, and average values) can be accessed in the Plots Panel.

The tool documentation has been updated to better describe how the GC Content and GC Skew plot values are generated and displayed.

GC Content values are calculated using a sliding window and the formula (G+C)/(Length), which leads to values between 0 and 1.

GC Skew values are calculated using a sliding window and the formula (G-C)/(G+C), which leads to values between -1 and 1.

The Y-axis range of displayed plots is automatically set to the min/max values for the plot (e.g. if the minimum score is 0.26, the Y-axis will start at 0.26).

This Y-axis adjustment allows the full plotting space to be utilized and variation to be more easily observed.