Package update 0.0.8 -> 0.0.9

New functions

• 4 new functions for calculating elasticity of substitution have been added: elasticity, elasticity2, elasticity_fig, elasticity2_fig.

Package update 0.0.7 -> 0.0.8

New fucntion

• a new internal function has been added (conversion). This function provides integer representation of the given text string.

Improvements

• the following functions have been improved by changing a method for dealing with categorical variables: model_classification, data_classifying.
• An existing artificial data set (dataCOICOP) has been change into the real scanner data set
• Some new references have been added (e.g. for GEKS-L, GEKS-GL, GEKS-AQI, GEKS-AQU functions).
• A README file has been improved by adding some new example with using ML methods for product classifiction.

Package update 0.0.6 -> 0.0.7

New function

• a new function which allows to compare indices with a target price index was added (compare_to_target)

Improvements

• some function descriptions have been changed or improved
• set of files.R has been reorganized
• README file and vignette have been extended

Package update 0.0.5 -> 0.0.6

New function

• 37 new functions (concerning the WGEKS, GEKSL, WGEKSL, GEKS-AQU, WGEKS-AQU, GEKS-AQI, WGEKS-AQI, GEKS-GAQI, WGEKS-GAQI indices and its extensions, a new function compare_distances)

Bug fixes

• 6 small bugs fixed (they concern chlowe, chgeolowe, chyoung, chgeoyoung, chhybrid and chgeohybrid functions)
• data set on milk was corrected and modified

Data set modification

• A data set on milk has beed modified (one new product has beed added) *

Function modification

• A function matched_fig has been extended by adding a new parameter

Package update 0.0.4 -> 0.0.5

New function

• 1 new function (data_aggregating) has beed added. This function aggregates the user’s data frame over time and/or over outlets (retIDs)

New data set

• 1 new artificial data set has been added (dataAGGR) to demonstrate the utility of the data_aggregation function.

Bug fixes

• 2 bugs fixed (they concern final_index and final_index2 functions)

Package update 0.0.3 -> 0.0.4

New function

• 1 new function (data_check) has beed added. This function checks if the user’s data frame is suitable for further price index calculation.

Bug fixes

• 2 bugs fixed (they concern data_norm and unit functions)
• corrected descriptions (e.g. model_classification function)

Package update 0.0.2 -> 0.0.3

Bug fixes

• Function data_norm (which is crucial for product unit standarization) has beed corrected (the previous version of that function duplicated rows in data frame)

Package update 0.0.1 -> 0.0.2

Improvements

• Function data_matching() has been modified and now it is much more faster,

• Examples concerning chain indices have been modified and now they are less time-consuming while checking,

• New data set is added (dataU)

• New functions for scanner data processing are added (data_unit and data_norm)

Bug fixes

• Access to HASP and WISP methods has been added in the price_index() function and now price_indices() works correctly,

• The default value and the meaning of the sensitivity parameter in data_preparing() and model_classification() functions have been corrected.