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Biplot Tools |
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This is the
core of GGEbiplot. |
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Rank
on any Entry |
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The testers are ranked
based on any chosen entry by rotating the biplot |
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Rank
on any Tester |
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The entries are ranked
based on any chosen tester by rotating the biplot |
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Relation among Testers |
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This
function is one of the most useful functions.
It is used to visualize the relationships
among testers and the degree to which each tester is represented in the
biplot. |
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Relation among Entries |
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To visualize the
similarities among entries. |
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Show/Hide Concentric circles |
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This helps to see the
vector lengths of the testers or of entries. |
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Combine two Testers |
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To see the ranks of
the entries based on two testers. |
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Compare two entries |
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To compare two entries
for their relative performances regarding each of the testers. |
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Entry-tester relationship |
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To show how each of
the entries interacts with each of the testers. |
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Which Won Where |
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Produces a “polygon
view of the biplot” with perpendicular lines to its sides dividing
the biplot into sectors. This is one of the most important functions of
“GGE Biplot Analysis,” which identifies entries that have the highest
values regarding one or more testers. |
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Mean
vs. Stability |
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This is another very
important function of “GGE Biplot Analysis”, that shows simultaneously the
mean performance and the stability of the entries. |
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Average Tester Coordination |
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This adds the “Average
Tester Coordination” (ATC view of the biplot),
which is the basis for genotype (entry) evaluation based on mean and
stability, and for test environment (tester) evaluation based on its
discrimination of the genotypes and representativeness of the other test
environments. |
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Rank
Entries/Testers |
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This group of
functions produces concentric circles using an entry or a tester as the
concentric center. This graphically ranks
the entries or testers with a selected reference. |
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with
ref. to an Entry |
Any selected entry as
the concentric center. |
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with
ref. to a Tester |
Any selected tester
as the concentric center. |
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with
ref. to the "Ideal" Tester |
The "Ideal" tester is
the concentric center, which is defined to be the most discriminating of
the entries and the most representative of other testers. This is a very
useful tool for test environment evaluation. |
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with
ref. to the "Ideal" Entry |
The "Ideal" entry is
the concentric center, which is defined as to having the highest mean
performance and being absolutely stable. This function is very important
for selecting high yielding and stable genotypes. |
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Flip
Biplot |
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Biplot flip will not
change its interpretation, because it is the relative positions of the
entries and the testers rather than their PC values that is important.
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Vertical flip |
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Horizontal flip |
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Switch Axes |
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Connect... |
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Entries |
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Testers |
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Linear Map of... |
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To mimic the genetic
maps to the association among traits or markers to see the relationships
among them. |
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Testers |
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Entries |
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