Graphics Reference
In-Depth Information
Figure
.
.
Estimates of the regression function of catch score on latitude and longitude he let-hand
panel displays a reference band for linearity while the right-hand panel uses colour coding to indicate
the size of the difference between the estimate and a linear regression function, in units of standard
error
he two plots of Fig.
.
give an example of a further extension of this type of dis-
playtothecomparison oftwodifferentsurfaces,referring inthiscasetotwodifferent
years of sampling. he surface panels are now painted by the values of the standard-
iseddistance
,andsotheaddedcolour assessestheevidence
for differences between the two underlying surfaces m
and m
. he very small re-
gions wherethe estimates aremorethan twostandard errorsapart indicate that there
areonly relatively smalldifferences between the catchscorepatterns inthe twoyears.
(
m
−
m
)
s.e.
(
m
−
m
)
Figure
.
.
[his figure also appears in the color insert.] Estimates of regression functions of catch
score on latitude and longitude for two different years of data collection. Colour coding has been used
to indicate the standard differences between the two surfaces
