Table 1. Types, levels of measurement and sources of collected observations.
| Inputs | Type | Scale | Acronym | Source |
|---|---|---|---|---|
| Controllable Factors (CFs) | ||||
| Plant density | Quantb | Ratio | Pl_dens | ProjectDB |
| Cropping systems (monocropping, intercroppping) | Quala | Nominal | Int | ProjectDB |
| Variety | Quala | Nominal | Var | ProjectDB |
| Planting pattern | Quala | Nominal | Pl_patt | ProjectDB |
| Non-Controllable Factors (NCFs) | ||||
| Soil | ||||
| Texture | Quala | Nominal | Text | RASTA |
| Effective soil depth | Quantb | Ratio | Eff_depth | RASTA |
| Soil organic matter | Qualb | Ordinal | SOM | RASTA |
| Drainage | Qualb | Ordinal | Drain | RASTA |
| pH | Quantb | Interval | pH | RASTA |
| Climate | ||||
| Annual Mean Temperature | Quantb | Interval | BIO1 | BIOCLIM |
| Mean Diurnal Range | Quantb | Ratio | BIO2 | BIOCLIM |
| Isothermality | Quantb | Ratio | BIO3 | BIOCLIM |
| Temperature Seasonality | Quantb | Interval | BIO4 | BIOCLIM |
| Max Temperature of Warmest Month | Quantb | Interval | BIO5 | BIOCLIM |
| Min Temperature of Coldest Month | Quantb | Interval | BIO6 | BIOCLIM |
| Temperature Annual Range | Quantb | Ratio | BIO7 | BIOCLIM |
| Mean Temperature of Wettest Quarter | Quantb | Interval | BIO8 | BIOCLIM |
| Mean Temperature of Driest Quarter | Quantb | Interval | BIO9 | BIOCLIM |
| Mean Temperature of Warmest Quarter | Quantb | Interval | BIO10 | BIOCLIM |
| Mean Temperature of Coldest Quarter | Quantb | Interval | BIO11 | BIOCLIM |
| Annual Precipitation | Quantb | Ratio | BIO12 | BIOCLIM |
| Precipitation of Wettest Month | Quantb | Ratio | BIO13 | BIOCLIM |
| Precipitation of Driest Month | Quantb | Ratio | BIO14 | BIOCLIM |
| Precipitation Seasonality | Quantb | Ratio | BIO15 | BIOCLIM |
| Precipitation of Wettest Quarter | Quantb | Ratio | BIO16 | BIOCLIM |
| Precipitation of Driest Quarter | Quantb | Ratio | BIO17 | BIOCLIM |
| Precipitation of Warmest Quarter | Quantb | Ratio | BIO18 | BIOCLIM |
| Precipitation of Coldest Quarter | Quantb | Ratio | BIO19 | BIOCLIM |
| Geographical Coordinates | Quantb | Interval | GPS | ProjectDB |
| Output | ||||
| Plantain yield | Quantb | Ratio | Yield | ProjectDB |
a Categorical variables.
b Continuous variables