The following table lists the parameters in the Volcano Plots view.
Parameter | Description |
|---|---|
Data Source | Specifies the type of data to plot from:
|
Comparison | Specifies the items to be compared. |
P-value | Sets the p-value, which is the likelihood that abundances of a particular peptide across different samples are not different. For information on p-values, see Calculate p-values and adjusted p-values for quantification results. Drag the slider to change the y-axis range of the shaded areas, or enter the appropriate number in the box to the right of the slider and press the ENTER key. |
Log2 Fold Change | Sets the Log2 fold change, which is the ratio of the difference between the last value and the first value over the original value. (If the initial value is A and final value is Z, the fold change is (Z - A)/A or Z/A - 1.)The fold change is expressed in log2 format. Drag the slider to change the x-axis range of the shaded areas, or enter the appropriate number in the box to the right of the slider and press the ENTER key. |
Log10 P-value (y axis) | Displays p-values in log10. |
Log2 Ratio (x axis) | Displays the abundance ratio in log2. |
Legend | Displays the meaning of the colors of groups of proteins or peptide groups. By default, the legend is hidden. Select Show Legend from the shortcut menu to display the legend. |