anova

anova(X)

X is a matrix or a table with numeric columns.

Conduct one-way analysis of variance (ANOVA). Each column in X is a group.

Return a dictionary with the following keys:

• pValue: p-value of the F-statistic
• fValue: F-statistic
• ssBetween: sum of squares between groups
• dfBetween: degrees of freedom between groups
• ssWithin: sum of squares within groups
• dfWithin: degrees of freedom for each group

a=300 287 301 400 211 399 412 312 390 412
b=240 259 302 311 210 402 390 298 347 380
c=210 230 213 210 220 208 290 300 201 201
m=matrix(a,b,c)
anova(m);

// output
pValue->0.000515
fValue->10.15459
ssBetween->70528.066667
dfBetween->2
ssWithin->93763.4
dfWithin->27