If you are using the code from github after September 2021, or the fightchurn pip package, the paths have changed from those described in the first printing.
In the first numbered list in the sidebar it should now read:
2. Create a database schema with `fightchurn/datagen/churndb.py`.
3. Generate simulation data and save it into the Postgres schema with `fightchurn/datagen/churnsim.py`.
In the command line example after the third paragraph it should now read:
fightchurn/run_churn_listing.py --chapter 2 --listing 1
In the second numbered listed in the sidebar it should now read:
1. Create a schema with `fightchurn/datagen/churndb.py`
2. ...
3. The listing wrapper program works from parameters stored in a JSON file, `fightchurn/listings/conf/churnsim_listings.json`.
If you are using the code from github after September 2021, or the fightchurn pip package, the paths have changed from those described in the first printing.
In the command line program examples it should read:
fightchurn/run_churn_listing.py
The correction above applies in the following places:
| Chapter | Section | Page |
|---|---|---|
| 2 | 2.3.2 | 52 |
| 2 | 2.4.3 | 60 |
| 2 | 2.5.2 | 60 |
| 2 | 2.6.2 | 68 |
| 2 | 2.7.3 | 75 |
| 3 | 3.3 | 88 |
| 3 | 3.5.1 | 94 |
| 3 | 3.5.3 | 97 |
| 3 | 3.5.4 | 98 |
| 3 | 3.7.1 | 103 |
| 3 | 3.8.1 | 110 |
| 3 | 3.10.3 | 123 |
| 4 | 4.3.3 | 145 |
| 5 | 5.1.2 | 182 |
| 5 | 5.2.2 | 198 |
| 6 | 6.1.2 | 223 |
| 7 | 7.1.1 | 264 |
| 7 | 7.1.2 | 266 |
| 7 | 7.1.2 | 267 |
| 7 | 7.2.1 | 276 |
| 7 | 7.3.1 | 285 |
| 7 | 7.3.2 | 292 |
| 7 | 7.4.1 | 297 |
| 8 | 8.2 | 326 |
| 8 | 8.2 | 328 |
| 8 | 8.3.2 | 333 |
| 9 | 9.1.2 | 373 |
| 9 | 9.1.3 | 378 |
| 9 | 9.2.2 | 384 |
| 9 | 9.3.2 | 387 |
| 9 | 9.4.2 | 391 |
| 9 | 9.5.2 | 399 |
| 9 | 9.5.4 | 402 |
| 10 | 10.1.3 | 413 |
| 10 | 10.2.3 | 420 |
| 10 | 10.3.2 | 428 |
| 10 | 10.5.1 | 435 |
| 10 | 10.5.2 | 436 |
| 10 | 10.5.3 | 440 |
| 10 | 10.5.3 | 441 |
| 10 | 10.5.4 | 442 |
| 10 | 10.5.4 | 444 |
| 10 | 10.6 | 447 |
| 10 | 10.6 | 450 |