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28
Alphabetical Listing
χ
2
Cdf()
Catalog >
χ
2
Cdf(
lowBound
,
upBound
,
df
)
⇒
number
if
lowBound
and
upBound
are numbers,
list
if
lowBound
and
upBound
are lists
chi2Cdf(
lowBound
,
upBound
,
df
)
⇒
number
if
lowBound
and
upBound
are numbers,
list
if
lowBound
and
upBound
are lists
Computes the
χ
2
distribution probability
between
lowBound
and
upBound
for the
specified degrees of freedom
df
.
For P(
X
≤
upBound
), set
lowBound
= 0.
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
χ
2
GOF
Catalog >
χ
2
GOF
obsList
,
expList
,
df
chi2GOF
obsList
,
expList
,
df
Performs a test to confirm that sample data
is from a population that conforms to a
specified distribution.
obsList
is a list of
counts and must contain integers. A
summary of results is stored in the
stat.results
variable. (See page 172.)
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
Output variable
Description
stat.
χ
2
Chi square stat: sum((observed - expected)
2
/expected
stat.PVal
Smallest level of significance at which the null hypothesis can be rejected
stat.df
Degrees of freedom for the chi square statistics
stat.CompList
Elemental chi square statistic contributions
χ
2
Pdf()
Catalog >
χ
2
Pdf(
XVal
,
df
)
⇒
number
if
XVal
is a
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