Field Layout Generator
Generate randomised field plot maps online for CRD, RBD, Latin square, Augmented RBD and Alpha lattice. PDF, SVG, CSV.
When to use it
Use to generate a deterministic, seeded, randomised field plot map for a planned experiment before sowing. Supports CRD, RBD, Latin square, Augmented RBD, and Alpha lattice. Outputs a printable PDF / SVG / CSV with treatment codes and metric XY coordinates per plot.
When NOT to use it
Do not use as the analysis tool; this only randomises the layout. After harvest, run the corresponding ANOVA tool (CRD, RBD, etc.). Do not skip the seed parameter; reproducibility of the layout depends on it.
What you get
A randomised plot map as a printable PDF (with treatment codes per plot, blocks marked, scale bar) plus an SVG and a CSV listing every plot's row, column, block, treatment and centroid coordinates in metres. The same seed reproduces the exact same layout (Mulberry32 RNG + Fisher-Yates shuffle).
Worked example
8 treatments laid out as RBD with 3 replications; the seed in the option panel makes the layout reproducible.
T1 T2 T3 T4 T5 T6 T7 T8
Expected output: 24 plots in 3 blocks; each block holds one randomised permutation of T1..T8; PDF, SVG and CSV downloads available.
Source: StatVeda built-in example, paired with the analyse page sample for toolId 'fieldlayout'.
How to interpret the output
Each design type randomises differently: CRD shuffles the full multiset of treatment-by-replicate plots; RBD shuffles independently within each block; Latin square applies row and column permutations to the cyclic standard square; Augmented RBD distributes test entries randomly within blocks while keeping checks replicated; Alpha lattice uses a resolvable Patterson-Williams alpha generator.
Common pitfalls
- Not recording the seed; you cannot reproduce the layout later.
- Treating the map as the analysis output (this tool is layout only).
- Picking a Latin square for non-square treatment counts (the engine throws).
Try it in StatVeda
The Field Layout Generator (CRD / RBD / Latin / Augmented / Alpha lattice) engine runs entirely in the browser. No signup, no install, no data sent to a server. Paste your data, hit Run, copy the output.
Open Field Layout Generator (CRD / RBD / Latin / Augmented / Alpha lattice)References
- Cochran, W. G. and Cox, G. M. (1957). Experimental Designs, 2nd edition. John Wiley and Sons, New York. Chapters 4 and 5.
- Federer, W. T. (1956). Augmented designs. Hawaiian Planters' Record, 55, 191 to 208.
- Patterson, H. D. and Williams, E. R. (1976). A new class of resolvable incomplete block designs. Biometrika, 63(1), 83 to 92.