F & p PlotsPrevious Top Next
This function generates F plots, plotting F-values from a one-way ANOVA for each assessor. Each vertical line is the F-value of one specific assessor for a specific attribute.
The F-value is a measure of the ability of an assessor to discriminate between samples. The higher the F-value, the better.
The radio buttons under sorted by, decides whether the F-values are sorted by assessors or attributes.
The “general plot” in the top of the tree control will plot the F-values in different colours, whereas by clicking on a specific attribute or assessor (depending on the sorting-mode) will highlight that specific attribute or assessor.
The red and black horizontal lines indicate the significance level at 1% and 5%, respectively.
Oliver Tomic, Asgeir Nilsen, Magni Martens, Tormod Næs, Visualization of sensory profiling data for performance monitoring, LWT 40 (2007) 262–269.