Geoscience Reference
In-Depth Information
a
b
c
d
e
f
Fig. 4.2
Pearson's correlation coei cent
r
for various sample data sets.
a-b
Positive and
negative linear correlation,
c
random scatter with no linear correlation,
d
an outlier causing a
misleading value of
r
,
e
curvilinear relationship causing a high
r
since the curve is close to a
straight line,
f
curvilinear relationship clearly not described by
r
.
