Skip to content

Latest commit

 

History

History
87 lines (58 loc) · 4.9 KB

NEWS.md

File metadata and controls

87 lines (58 loc) · 4.9 KB

pricesensitivitymeter, v1.3.0 (release date: 2024-02-25)

  • new parameter "acceptable_range": allows to switch between van Westendorp's original definition of acceptable price ranges and a narrower definition which is used by some market research companies
  • new parameters "pi_calibrated_toocheap" and "pi_calibrated_tooexpensive" for functions psm_analysis() and psm_analysis_weighted(): allows to specify a calibrated purchase probability at the "too cheap" and "too expensive" price, respectively, which is different from zero
  • consistency: renames "trial" to "reach"

pricesensitivitymeter, v1.2.2 (release date: 2021-10-19)

  • psm_plot(): flexible color for Indifference Price Point and Optimal Price Point
  • psm_plot(): enforcing digits for Indifference Price Point and Optimal Price Point labels
  • change in DESCRIPTION to address a CRAN note (no need for lazy loading of data)

pricesensitivitymeter, v1.2.1 (release date: 2021-03-21)

  • fixes URL in package description
  • fixes date formatting in DESCRIPTION

pricesensitivitymeter, v1.2 (release date: 2021-03-21)

  • new function psm_plot() for automatic plotting of the result
  • package now also supports input in tibble format
  • fix in plotting vignette: fix position of indifference price point
  • fixes in vignette formatting to emphasize function names
  • change of Github URLs due to change of Github username
  • fix of external URLs that have changed
  • housekeeping: re-factoring code

pricesensitivitymeter, v1.1.1 (release date: 2019-08-23)

  • fixes a markdown issue in the README file

pricesensitivitymeter, v1.1.0 (release date: 2019-08-22)

  • adds the parameter interpolation_steps that lets users define the granularity of the interpolation between the observed prices
  • fixes a bug that caused respondents with intransitive price preferences to be used in the analysis when using psm_analysis_weighted() (and adds some unit testing to check this in the future)
  • corrects the "Interpolation in Small Samples" vignette: now shows correctly "not cheap" instead of "cheap" and "not expensive" instead of "expensive"
  • extends unit test coverage

pricesensitivitymeter, v1.0.1 (release date: 2019-04-29)

  • makes some tests slightly more lenient to account for rounding differences

pricesensitivitymeter, v1.0.0 (release date: 2019-04-28)

  • adds the psm_analysis_weighted() function to deal with weighted input data. This requires the survey package.
  • adds the argument intersection_method to define how to calculate the price points in case there are multiple intersections (should be a rare case)
  • amends the psm class definition and the summary function for the psm class to account for weighted/unweighted data
  • bug fix: if a respondent has the same answer for both the "cheap" and the "expensive" price, the interpolation of purchase probabilities in the Newton Miller Smith extension now returns non-empty answers
  • bug fix: if "too cheap" information is missing, skip some calculations

pricesensitivitymeter, v0.4.1 (release date: 2018-10-21)

  • fixes issue with calculation of "point of marginal cheapness" and "point of marginal expensiveness" (acceptable price range). also affects documentation and visualization vignette. thanks to athib2 for flagging it
  • fixes bug in calculation of % of removed cases (did show only 0/1 before, now proper percentages)
  • fixes typos in summary() function and in the documentation
  • adds unit testing for Newton Miller Smith input as dataframe

pricesensitivitymeter, v0.3.3 (release date: 2018-10-14)

  • fixes an issue in the unit testing with an if condition with length greater 1 (thanks to Tomas Kalibera for automated testing in R-devel)

pricesensitivitymeter, v0.3.2 (release date: 2018-05-12)

  • changing links from http://... to https://...

pricesensitivitymeter, v0.3.0 (release date: 2018-05-10)

  • adding optional argument to interpolate between price points
  • adding a vignette for the interpolate argument
  • edits in the README: fixing typos, amending the installation instructions

pricesensitivitymeter, v0.2.1 (release date: 2018-04-12)

  • addressing feedback from CRAN submit: adding proper citation of the main publication in the DESCRIPTION file

pricesensitivitymeter, v0.2 (release date: 2018-04-11)

  • adding support for running the analysis without a "too cheap" price
  • adding a charting vignette
  • adding automated testing of function inputs and function outputs
  • renaming the main function from "PSManalysis" to "psm_analysis" (for readability reasons)
  • improving smoothing of trial/revenue optimization when using Newton Miller Smith extension: setting up the price matrix with continuous price steps between the minimum and the maximum to avoid jumps that come from the lack of price points in a specific area
  • refining the data input checks (resulting from the c() implementation of hierarchies between data classes)

pricesensitivitymeter, v0.1 (release date: 2017-05-20)

  • first complete Github version incl. function documentation