Mann Whitney run #183 · statistical_test
2.178e+04
statistic
0.005597
p value
True
significant
two-sided
alternative
completed
status
2026-09-21 02:16
created
Figures
Distribution by group (violin)
Download PNG
Group means (95% CI)
Download PNG
Group Stats 2 rows
| group | n | mean | sd | median | min | max |
|---|---|---|---|---|---|---|
| KINSELLA | 179 | 0.9849301675977654 | 2.3634511804680014 | 0.0 | 0.0 | 18.072 |
| MATTHEIS | 214 | 0.22855140186915887 | 0.772528562562286 | 0.0 | 0.0 | 7.466 |
Effect Size 2 rows
| name | value |
|---|---|
| name | rank_biserial_r |
| value | -0.13708035294731902 |
Method & Provenance
- Method
- Mann-Whitney U test
- Method key
mann_whitney(result type:statistical_test, result #183)- Engine
- Python · scipy v1.17.1
- Dataset(s)
- #703 gallery — catg_example_08_woody_encroachment.csv
- Status
- completed
- Permanent link
- https://cat-g-omxpert.wishartlab.com/results/by-token/4fd68eade08c42a9bba7ba26389cf87b Bookmark or share this URL — it does not depend on your session.
- Created
- 2026-09-21 02:16:20.597111
Parameters used
| Parameter | Value |
|---|---|
test_type
| mann_whitney |
value_col
| PC_WOODMASS |
group_col
| RANCH |
Execution trace
Reconstructed from the parameters stored with this result — represents the Python/R calls the analysis service made.
from scipy import statsstat, p = stats.mannwhitneyu(group_a, group_b, alternative='two-sided')Run warnings
- Shapiro-Wilk suggests group "KINSELLA" is not normally distributed (p=8.896e-23).
- Shapiro-Wilk suggests group "MATTHEIS" is not normally distributed (p=1.746e-27).
- Levene's test suggests unequal variances across groups (p=1.341e-05).