0.19.0

Warning

We have migrated all our documentation to the more complete and modern class multidimensional.MMM. See the migration guide: https://www.pymc-marketing.io/en/latest/notebooks/mmm/mmm_migration_guide.html
We will remove the old mmm.MMM class in 0.20.0. Please migrate your code! Most changes are internal optimizations. The APIs are very similar!

What's Changed

Major Changes 🛠

• Default to unpooled transformation priors in Multidimensional MMM by @ricardoV94 in #2293
• CLV API Deprecation by @ColtAllen in #2347

New Features 🎉

• Some fixes TimeSlice Cross Validation and Extend Case Study by @juanitorduz in #2393
• Validate YAML with Pydantic by @juanitorduz in #2418

Bugfixes 🐛

• Raise explicitly when trying to optimize or measure incrementality of discrete channel data by @ricardoV94 in #2337
• bug : mlflow uses the name param on versions 3.0.0 and greater by @daniel-saunders-phil in #2339
• Respect channel ordering when applying budget bounds by @cetagostini in #2350
• Implement MultiDimensionalMMM with pymc.dims by @ricardoV94 in #2204
• Fix: Handle DateIndex in CSA plot_data to resolve crash (fixes #1864) by @shivamlalakiya in #2302
• remove superfluous use of arbitrary_types_allowed in annotations by @nataziel in #2403
• BUG: HSGPKwargs.cov_func does not support custom Cov by @isofer in #2398
• fix nb: GAM NOTEBOOK BROKEN by @juanitorduz in #2416
• fix: work around RuntimeError by @williambdean in #2421
• Add compute_mean_contributions_over_time to MMM multidim by @juanitorduz in #2423
• Fix: Channel coordinates are alphabetically sorted in multidimensional MMM, causing ROAS calculation errors by @juanitorduz in #2422
• Hot Fix: Remove Constrain Variables Sample Posterior Predictive by @juanitorduz in #2440

Documentation 📖

• Revert "cleanup (#2285)" by @ricardoV94 in #2324
• Incrementally, ROAs, CAC, etc... by @isofer in #2290
• Docs: Add CSA module to README header #1821 by @shivamlalakiya in #2301
• docs: Add missing modules by @williambdean in #2343
• Incrementality - the rest of the story by @isofer in #2300
• update docstring for MMM by @isofer in #2358
• Group the custom components notebooks by @daniel-saunders-phil in #2362
• MMM Data Generator by @juanitorduz in #2292
• Demo notebook for cost per unit by @isofer in #2363
• Clarify budget distribution over period by @ricardoV94 in #2394
• Mmm dims migration guide by @ricardoV94 in #2392
• Fix wrong constraints docstrings by @ricardoV94 in #2395
• Custom MMM Model: ROAS Parametrization by @juanitorduz in #2361
• Expose the new incrementality module in some key examples by @juanitorduz in #2410
• Update case study title for clarity by @juanitorduz in #2412
• ROAS parametrizatio notebook fix by @juanitorduz in #2414
• Remove CLV lifetimes Dependency from Notebooks and Unit Tests by @ColtAllen in #2428
• Replace potential by likelihood in calibration by target by @cetagostini in #2407

Maintenance 🔧

• Upper Bound For ArviZ 1.0.0 by @juanitorduz in #2326
• Fix/redo #2290 (incrementally) without utility rename by @isofer in #2333
• Allow all_tests to pass when test jobs are skipped by @isofer in #2334
• Update README.md by @juanitorduz in #2332
• FancierLinearRegression by @williambdean in #2315
• Unblock merges for non-code PRs by always reporting all_tests status by @isofer in #2344
• Cast channel_data to float at construction time by @isofer in #2341
• Add Claude and Cursor AI skill definitions by @cetagostini in #2349
• MMM SKILLs by @juanitorduz in #2354
• skills: clarify lift test calibration with time-varying media by @drbenvincent in #2360
• Support cost_per_unit for channels with non-monetary data (impressions, clicks, etc.) - part 1 by @isofer in #2320
• feat: support sample_prior_predictive kwargs to sample_curve by @williambdean in #2365
• Extends the cost-per-unit support to plotting by @isofer in #2364
• Fix optimization with time varying media by @ricardoV94 in #2396
• Validate YAML structure and warn on unknown keys by @cetagostini in #2409
• [HOT-FIX] NDArray.record() now requires an in_warmup keyword by @juanitorduz in #2429
• Fix: MediaConfigList should be parametrized explicitly by core_dim/media_dim by @juanitorduz in #2426
• make mmm optimization tests deterministic by @juanitorduz in #2431
• Bump version to 0.19.0 by @juanitorduz in #2441

New Contributors

• @shivamlalakiya made their first contribution in #2301

Full Changelog: 0.18.2...0.19.0