h = vartest(x, v)
h = vartest(x, v, 'Alpha', alpha)
h = vartest(x, v, 'Tail', tail)
h = vartest(x, v, 'Dim', dim)
[h, p, ci, stats] = vartest(...)
| Parameter | Description |
|---|---|
| x | real numeric array: sample data. |
| v | nonnegative real scalar: hypothesized variance. |
| alpha | scalar in (0,1), 0.05 by default: significance level. |
| tail | 'both', 'right', or 'left'. |
| dim | positive integer: dimension to operate along. |
| Parameter | Description |
|---|---|
| h | logical array: test decision. |
| p | array: p-values. |
| ci | 2-row array: confidence intervals for the variance. |
| stats | structure with chisqstat and df fields. |
vartest performs a chi-square variance test along the first non-singleton dimension unless Dim is specified.
NaN values are omitted from each tested slice.
x = [4.5 4.8 5.1 5.4 5.7 6.0];
[h, p, ci, stats] = vartest(x, 0.4);
[h2, p2] = vartest(x, 0.2, 'Tail', 'right');| Version | Description |
|---|---|
| 2.0.0 | initial version |