Use this text box to specify the value of the
Variable Defining the Ratio
variable to be used as the denominator for the ratio.
For example, if the above
variable
is
Treatment
with values
Test
and
Ref
, and you specify
Ref
here, then the channel of
Ref
treatment will be used as the denominator of the ratio, whereas the other channel of
Test
treatment will be used as the numerator of the ratio.
If left
blank
, the smaller value of the
Channel
variable is used. For example, if
Channel
variable is
Dye
, and has values of
Cy3
and
Cy5
, the default denominator will be
Cy3
.
For more complex designs where arrays can have different values for the denominator, such as in a loop design, you might want to create a denominator indicator variable using the
DATA Step
process.
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