Explicit floor, minmax scaling
match ← All logistic growth benchmarksThe same bounds, scaled between the lowest floor and the highest ceiling.
Input
benchmark/inputs/v2/logistic-floor-96.json: 96 history rows and 120 forecast rows.
Output
Largest difference: 3.2e-11 (< 0.0001% of the input's range).
Every forecast row from both libraries.
| Date | Effect Prophet | Python Prophet | Difference |
|---|---|---|---|
| 2020-01-01 | 24.4855 | 24.4855 | 8.6e-12 |
| 2020-01-02 | 24.9722 | 24.9722 | 9.1e-12 |
| 2020-01-03 | 25.4734 | 25.4734 | 9.5e-12 |
| 2020-01-04 | 25.9892 | 25.9892 | 9.9e-12 |
| 2020-01-05 | 26.5199 | 26.5199 | 1.0e-11 |
| 2020-01-06 | 27.0657 | 27.0657 | 1.1e-11 |
| 2020-01-07 | 27.6267 | 27.6267 | 1.1e-11 |
| 2020-01-08 | 28.2032 | 28.2032 | 1.2e-11 |
| 2020-01-09 | 28.7953 | 28.7953 | 1.2e-11 |
| 2020-01-10 | 29.4030 | 29.4030 | 1.3e-11 |
| 2020-01-11 | 30.0266 | 30.0266 | 1.3e-11 |
| 2020-01-12 | 30.6661 | 30.6661 | 1.4e-11 |
| 2020-01-13 | 31.3215 | 31.3215 | 1.4e-11 |
| 2020-01-14 | 31.9929 | 31.9929 | 1.5e-11 |
| 2020-01-15 | 32.6803 | 32.6803 | 1.5e-11 |
| 2020-01-16 | 33.3836 | 33.3836 | 1.6e-11 |
| 2020-01-17 | 34.1028 | 34.1028 | 1.7e-11 |
| 2020-01-18 | 34.8378 | 34.8378 | 1.7e-11 |
| 2020-01-19 | 35.5885 | 35.5885 | 1.8e-11 |
| 2020-01-20 | 36.3548 | 36.3548 | 1.8e-11 |
| 2020-01-21 | 37.1364 | 37.1364 | 1.9e-11 |
| 2020-01-22 | 37.9331 | 37.9331 | 1.9e-11 |
| 2020-01-23 | 38.7446 | 38.7446 | 2.0e-11 |
| 2020-01-24 | 39.5707 | 39.5707 | 2.1e-11 |
| 2020-01-25 | 40.4111 | 40.4111 | 2.1e-11 |
| 2020-01-26 | 41.2653 | 41.2653 | 2.2e-11 |
| 2020-01-27 | 42.1329 | 42.1329 | 2.2e-11 |
| 2020-01-28 | 43.0136 | 43.0136 | 2.3e-11 |
| 2020-01-29 | 43.9068 | 43.9068 | 2.4e-11 |
| 2020-01-30 | 44.8121 | 44.8121 | 2.4e-11 |
| 2020-01-31 | 45.7288 | 45.7288 | 2.5e-11 |
| 2020-02-01 | 46.6563 | 46.6563 | 2.5e-11 |
| 2020-02-02 | 47.5942 | 47.5942 | 2.6e-11 |
| 2020-02-03 | 48.5417 | 48.5417 | 2.6e-11 |
| 2020-02-04 | 49.4981 | 49.4981 | 2.7e-11 |
| 2020-02-05 | 50.4628 | 50.4628 | 2.7e-11 |
| 2020-02-06 | 51.4350 | 51.4350 | 2.8e-11 |
| 2020-02-07 | 52.4139 | 52.4139 | 2.8e-11 |
| 2020-02-08 | 53.3989 | 53.3989 | 2.9e-11 |
| 2020-02-09 | 54.3894 | 54.3894 | 2.9e-11 |
| 2020-02-10 | 55.3842 | 55.3842 | 2.9e-11 |
| 2020-02-11 | 56.3827 | 56.3827 | 3.0e-11 |
| 2020-02-12 | 57.3839 | 57.3839 | 3.0e-11 |
| 2020-02-13 | 58.3870 | 58.3870 | 3.0e-11 |
| 2020-02-14 | 59.3911 | 59.3911 | 3.1e-11 |
| 2020-02-15 | 60.3955 | 60.3955 | 3.1e-11 |
| 2020-02-16 | 61.3992 | 61.3992 | 3.1e-11 |
| 2020-02-17 | 62.4014 | 62.4014 | 3.1e-11 |
| 2020-02-18 | 63.4013 | 63.4013 | 3.1e-11 |
| 2020-02-19 | 64.3981 | 64.3981 | 3.2e-11 |
| 2020-02-20 | 65.3910 | 65.3910 | 3.2e-11 |
| 2020-02-21 | 66.3791 | 66.3791 | 3.2e-11 |
| 2020-02-22 | 67.3617 | 67.3617 | 3.2e-11 |
| 2020-02-23 | 68.3381 | 68.3381 | 3.2e-11 |
| 2020-02-24 | 69.3074 | 69.3074 | 3.2e-11 |
| 2020-02-25 | 70.2691 | 70.2691 | 3.2e-11 |
| 2020-02-26 | 71.2223 | 71.2223 | 3.2e-11 |
| 2020-02-27 | 72.1666 | 72.1666 | 3.2e-11 |
| 2020-02-28 | 73.1012 | 73.1012 | 3.1e-11 |
| 2020-02-29 | 74.0256 | 74.0256 | 3.1e-11 |
| 2020-03-01 | 74.9391 | 74.9391 | 3.1e-11 |
| 2020-03-02 | 75.8414 | 75.8414 | 3.1e-11 |
| 2020-03-03 | 76.7319 | 76.7319 | 3.1e-11 |
| 2020-03-04 | 77.6101 | 77.6101 | 3.0e-11 |
| 2020-03-05 | 78.4757 | 78.4757 | 3.0e-11 |
| 2020-03-06 | 79.3282 | 79.3282 | 3.0e-11 |
| 2020-03-07 | 80.1674 | 80.1674 | 3.0e-11 |
| 2020-03-08 | 80.9928 | 80.9928 | 2.9e-11 |
| 2020-03-09 | 81.8044 | 81.8044 | 2.9e-11 |
| 2020-03-10 | 82.6017 | 82.6017 | 2.9e-11 |
| 2020-03-11 | 83.3846 | 83.3846 | 2.8e-11 |
| 2020-03-12 | 84.1529 | 84.1529 | 2.8e-11 |
| 2020-03-13 | 84.9066 | 84.9066 | 2.7e-11 |
| 2020-03-14 | 85.6454 | 85.6454 | 2.7e-11 |
| 2020-03-15 | 86.3694 | 86.3694 | 2.7e-11 |
| 2020-03-16 | 87.0784 | 87.0784 | 2.6e-11 |
| 2020-03-17 | 87.7725 | 87.7725 | 2.6e-11 |
| 2020-03-18 | 88.4516 | 88.4516 | 2.5e-11 |
| 2020-03-19 | 89.1159 | 89.1159 | 2.5e-11 |
| 2020-03-20 | 89.7653 | 89.7653 | 2.4e-11 |
| 2020-03-21 | 90.3999 | 90.3999 | 2.4e-11 |
| 2020-03-22 | 91.0199 | 91.0199 | 2.3e-11 |
| 2020-03-23 | 91.6253 | 91.6253 | 2.3e-11 |
| 2020-03-24 | 92.2163 | 92.2163 | 2.2e-11 |
| 2020-03-25 | 92.7931 | 92.7931 | 2.2e-11 |
| 2020-03-26 | 93.3558 | 93.3558 | 2.1e-11 |
| 2020-03-27 | 93.9047 | 93.9047 | 2.1e-11 |
| 2020-03-28 | 94.4398 | 94.4398 | 2.0e-11 |
| 2020-03-29 | 94.9615 | 94.9615 | 2.0e-11 |
| 2020-03-30 | 95.4699 | 95.4699 | 1.9e-11 |
| 2020-03-31 | 95.9653 | 95.9653 | 1.9e-11 |
| 2020-04-01 | 96.4480 | 96.4480 | 1.8e-11 |
| 2020-04-02 | 96.9181 | 96.9181 | 1.8e-11 |
| 2020-04-03 | 97.3759 | 97.3759 | 1.7e-11 |
| 2020-04-04 | 97.8217 | 97.8217 | 1.7e-11 |
| 2020-04-05 | 98.2558 | 98.2558 | 1.7e-11 |
| 2020-04-06 | 98.6784 | 98.6784 | 1.6e-11 |
| 2020-04-07 | 99.0897 | 99.0897 | 1.6e-11 |
| 2020-04-08 | 99.4901 | 99.4901 | 1.5e-11 |
| 2020-04-09 | 99.8799 | 99.8799 | 1.5e-11 |
| 2020-04-10 | 100.2592 | 100.2592 | 1.4e-11 |
| 2020-04-11 | 100.6283 | 100.6283 | 1.4e-11 |
| 2020-04-12 | 100.9876 | 100.9876 | 1.4e-11 |
| 2020-04-13 | 101.3373 | 101.3373 | 1.3e-11 |
| 2020-04-14 | 101.6777 | 101.6777 | 1.3e-11 |
| 2020-04-15 | 102.0090 | 102.0090 | 1.2e-11 |
| 2020-04-16 | 102.3315 | 102.3315 | 1.2e-11 |
| 2020-04-17 | 102.6454 | 102.6454 | 1.2e-11 |
| 2020-04-18 | 102.9510 | 102.9510 | 1.1e-11 |
| 2020-04-19 | 103.2485 | 103.2485 | 1.1e-11 |
| 2020-04-20 | 103.5383 | 103.5383 | 1.1e-11 |
| 2020-04-21 | 103.8204 | 103.8204 | 1.0e-11 |
| 2020-04-22 | 104.0953 | 104.0953 | 1.0e-11 |
| 2020-04-23 | 104.3630 | 104.3630 | 9.8e-12 |
| 2020-04-24 | 104.6239 | 104.6239 | 9.5e-12 |
| 2020-04-25 | 104.8781 | 104.8781 | 9.2e-12 |
| 2020-04-26 | 105.1259 | 105.1259 | 8.9e-12 |
| 2020-04-27 | 105.3675 | 105.3675 | 8.6e-12 |
| 2020-04-28 | 105.6031 | 105.6031 | 8.3e-12 |
| 2020-04-29 | 105.8329 | 105.8329 | 8.0e-12 |
Timing
Median of all measured repetitions.
| Step | Effect Prophet | Python Prophet | Effect Prophet is |
|---|---|---|---|
| Fit | 11.6 ms | 19.2 ms | 1.7× faster |
| Predict | 793 µs | 3.08 ms | 3.9× faster |
| Save model to JSON | 29 µs | 460 µs | 16× faster |
| Load model from JSON | 174 µs | 2.41 ms | 14× faster |
| Load and predict in a new process | 155 ms | 1.57 s | 10× faster |
Settings
The case declaration both libraries ran.
json
{
"kind": "map",
"comparison": {
"kind": "equivalent-objective",
"evidenceId": "logistic-python-reconciliation-v1"
},
"configuration": {
"growth": "logistic",
"scaling": "minmax",
"seasonalityMode": "additive",
"holidaysMode": "additive",
"changepoints": {
"mode": "explicit",
"timestamps": [
"2020-02-08T00:00:00.000Z"
]
},
"changepointPriorScale": 0.05,
"seasonalities": [],
"events": [],
"regressors": []
},
"pythonOptimizer": {
"algorithm": "Auto",
"maxIterations": 10000,
"newtonFallback": true,
"sigFigs": 12
}
}