Recent Releases of nmecr
nmecr - v1.0.16
This release fixes a bug in monthly change point models (introduced in v1.0.15) that resulted in apparent overfitting of monthly models.
Updates in this release:
The function 'model_with_cp` was updated to:
- Remove
interval_startandinterval_endfrom the training data for monthly models - Change the columns that are kept inside the function when day_normalized is
TRUE
This was described in Issue #28. Thanks to Nastaran Alishahi for pointing this out!
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Published by mhsjacoby about 1 year ago
nmecr - v1.0.15
Updates in this release:
The aggregate and create_dataframe functions have been re-written to accomplish these main tasks:
- Fix time shifting issues
- Remove dependence on the xts package
- Add support for additional independent variables to the aggregate function
- Increase performance
- Simplify the code, increase readability, and improve documentation
- Unify the procedures used for aggregation
- Closes issue #14
Part of the procedure unification process involved stripping the primary processing code out of the create_dataframe function and instead calling to the aggregate function to serve as the processing engine. create_dataframe now acts as a user friendly front end function that will check and error trap inputs. aggregate can also be called directly by nmecr users, but its purpose is more intended to be an procedure that can be used within other functions and analysis scripts where the developer is certain that arguments are formatted correctly.
Additional changes included:
- Remove while loop in five parameter change point model that was causing model fit task to get stuck in an infinite loop
- Fix typos in the vignettes
- Update author list
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Published by mhsjacoby over 1 year ago
nmecr - v1.0.12
Updates in this release:
- Added monthly model support for weather coverage calculation
- Fixed issue #15 due an an assignment operator bug
- Fixed issue #16 by adding an argument to calculate_model_predictions to allow for negative values to be predicted using TOWT
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Published by dexterluu about 2 years ago
nmecr - v1.0.11
Update in this release:
• Resolved an infinite loop issue that was caused when picking starting temperatures too close to the boundary temperatures for the 5P model. This was related to Issue #11.
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Published by devanjohnson almost 3 years ago
nmecr - v1.0.10
Updates in this release:
- corrected naming conventions for normalized savings summary, calculation of model parameters, and normalized savings datapoint count
- updated vignettes to match parameter correction and normalized savings correction
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Published by MeeraSharma over 3 years ago
nmecr - v1.0.9
Updates in this release:
- Added in unit tests for basic dataframe creation checks and vignette checks
- corrected 3PC and 3PH model forms to restrict the algorithm and force 3P models when requested
- Added in warning messages for when 3PC and 3PH cannot be computed (due to lack of appropriate changepoint)
- Corrected day normalization calculation for monthly dataframes
- Documentation updates
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Published by MeeraSharma over 3 years ago
nmecr - v1.0.8
Updates in this release:
- All algorithms can have additional variables for modeling as well as prediction
- Mean model
- Allowing inputs of less than 15-min interval data
- Minor correction in weather coverage
- Use of periodicity of timeseries directly instead of scale to determine data intervals for further calculations
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Published by MeeraSharma almost 4 years ago
nmecr - v1.0.7
Updates in this release:
- Savings Uncertainty calculation updated from ASHRAE Guideline 14-2002 version to Guideline 14-2014 version
- Adjusted R-squared added in model statistics summary
- Updated all four modeling outputs to include model variable coefficients as an additional list item
- Updated specification for HDD-CDD models: allowing users to specify them separately
- Updated to allow analysis over 15-min data intervals
Thanks to Samuel Desmeules for contributing bug fixes and improvements.
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Published by devanjohnson over 4 years ago
nmecr - v1.0.5
A number of fixes in this release:
• Fix for 3PH model
• Fix TOWT interval of week determination when using daily interval
• Incorporate XTS for better timeseries handling
• Vignette updates
• Fixed assignment of occupied/unoccupied in TOWT
• Include degrees of freedom in uncertainty calculation
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Published by devanjohnson over 4 years ago
nmecr - v1.0.4
A number of fixes to TOWT:
- fixed occupancy function naming (occ & unocc was switched)
- allow single TOW in occ/unocc models
- add occupancy_threshold value to model_input_options (default 0.65) for customizing find_occ_unocc
- add occupancy_info dataframe as optional argument to model_with_TOWT to force occupancy schedule
Thanks to Greg Anderson at Gridium for bringing these issues to our attention and recommending fixes.
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Published by devanjohnson about 5 years ago
nmecr - v1.0.2
Added vignettes for predictability screening and normalized savings calculations
Fixed issue in TOWT occupancy detection causing contrasts error when less than two unoccupied periods detected
Fixed warnings during package install
Updated default defined knots for TOWT
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Published by devanjohnson over 5 years ago