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Below you find a short guide for importing data and creating plots. For more information on plot types see Chapter Analysis.
First thing to do is to import sensory data acquired from a sensory panel. The data must be arranged such that assessors, samples, replicates and attributes are ordered column wise. In the following the example data set included in this installation will be used. More information on the structure of sensory data is found in Sec. Importing data.
Guide to import data and making a MEAN & STD plot:
1. Select File/Import.../Excel
2. Find the example data set called SampleData.xls
3. In the present example the ordering of the columns are in correspondance with the default ordering, thus press Accept to continue the import.
4. Another popup will appear, giving you various information on the data. Press OK and the import will continue and finish.
Having imported the sensory data, the panelCHECK now looks like:
5. Assume you want to plot the means and standard deviations of attributes and assessors for each assessor.
· Under the Univariate fan select the fan named MEAN & STD Plots.
· Also assume that you are not interested in the assessors named Bart and Jenny, and therefore uncheck them in the list of assessors.
· Expand the Sensory Data by clicking on the +.
· Double-click on Overview Plot (assessors).
· A plot with the 6 assessors appears.
· By clicking on one of the small histograms a full size plot of that histogram appears.
From this kind of plot, it is possible to compare the assessors agreement on attributes and to some extent how equal the samples are. Further interpretation is left to the reader and Chapter Analysis.