Changelog

DataExplorer 0.7.0

New Features

• #72: Added plot_qq for QQ plot.
• #76: Added plot_intro to visualize results of introduce.

Enhancements

• #42: Applied S3 methods for plotting functions.
• #77: dummify now works on selected columns.
• #78: All ggplot objects from plot_* are now invisibly returned. As a result, extracted profile_missing from plot_missing for missing value profiles.
• #83: Removed all deprecated functions.
• #85: Users can now specify number of rows/columns for plot page layout.
• plot_prcomp now passed scale. = TRUE to prcomp by default.
• Added sampled_rows argument to plot_scatterplot.
• Added option to parallelize plot object construction.
• Updated default config for create_report.

Bug Fixes

• #74: Fixed a bug causing create_report failure due to zero complete rows.
• #75: Fixed a bug in plot_str when plotting data.frame with more than 100 columns.
• #82: Removed hard-coded scales from all plot functions.
• Fixed a bug causing wrong column indices in split_columns.
• Fixed a bug using standard deviation instead of variance in plot_prcomp.

DataExplorer 0.6.1

Enhancements

• Updated vignette for better clarity.
• #71: Added better error handler for plot_prcomp.

Bug Fixes

• #69: Fixed bug causing create_report failure (specifically from plot_prcomp) when y is specified.
• Added more unit tests for create_report and plot_prcomp.

DataExplorer 0.6.0

New Features

• #15: Added plot_prcomp to visualize principle component analysis.
• #54: Extracted dummify from plot_correlation as a new function.
• #59: Added introduce for basic metadata.

Enhancements

• #41: create_report can now be customized.
• #53: Added page number for plots that span multiple pages.
• #56: Added support for theme and customization for individual components.
• #62: plot_bar now supports optional measures (in addition to categorical frequency) using argument with.
• #66: Feature engineering functions works on other classes in addition to just data.table.
• plot_missing:
  • Percentage text labels from output plot now has 2 decimals to prevent small percentages from being truncated to 0%.
  • Added example to quickly drop columns with too many missing values.
• Added .ignoreCat and .getAllMissing to helper.

Bug Fixes

• #55: Fixed bugs and updated vignette with latest functions.
• #57: Fixed plot_str bug for not supporting S4 objects.
• #63: Fixed plot_histogram and plot_density not working with column names containing spaces.

DataExplorer 0.5.0

New Features

• #48: Added plot_scatterplot to visualize relationship of one feature against all other.
• #50: Added plot_boxplot to visualize continuous distributions broken down by another feature.

Enhancements

• #44: Added option to exclude categories in group_category.
• #45: Added title option for all plots.
• #46: Added option to exclude columns in set_missing.
• #49 [Breaking Change]: Switched package to tidyverse style. All old functions are in .Deprecated mode. List of name changes in alphabetical order:
  • BarDiscrete -> plot_bar
  • CollapseCategory -> group_category
  • CorrelationContinuous-> plot_correlation(..., type = "continuous")
  • CorrelationDiscrete-> plot_correlation(..., type = "discrete")
  • DensityContinuous -> plot_density
  • DropVar -> drop_columns
  • GenerateReport -> create_report
  • HistogramContinuous -> plot_histogram
  • PlotMissing -> plot_missing
  • PlotStr -> plot_str
  • SetNaTo -> set_missing
  • SplitColType -> split_columns
• #52: Combined CorrelationContinuous and CorrelationDiscrete into one function, and added option to view correlation of all features at once.
• Optimized layout for multiple plots.

Bug Fixes

• #47: Fixed color scale for correlation heatmap.

DataExplorer 0.4.0

New Features

• #33: Added PlotStr to visualize data structure.
• #40: Added network graph to GenerateReport.

Bug Fixes

• #32: Fixed pandoc requirement error in unit test on cran.
• #34: Fixed error message when quiet is not supplied. In addition, report directory are printed through message() instead of cat().
• #35: Fixed rprojroot not found error.

Enhancements

• #12: Added vignette: dataexplorer-intro.
• #36: Fixed warnings from data.table in DropVar.
• #37: Changed all cat() to message().
• #38: Added option to order bars in BarDiscrete.
• #39: Extended SetNaTo to discrete features.
• Added more examples to README.md.

DataExplorer 0.3.0

New Features

• #25: Added SetNaTo to quickly reset missing numerical values.
• #29: Added DropVar to quickly drop variables by either name or column position.

Bug Fixes

• #24: CorrelationDiscrete now displays all factor levels instead of full rank matrix from model.matrix.

Enhancements

• #11: Functions with return values will now match the input class and set it back.
• #22: Added documentation for num_all_missing in SplitColType.
• #23: Added additional measures (in addition to frequency) to CollapseCategory.
• #26: Removed density estimation section from report template.
• #31: Added flexibility to name the new category in CollapseCategory.

Other notes

• #30: In CollapseCategory, update = TRUE will only work with input data as data.table. However, it is still possible to view the frequency distribution with any input data class, as long as update = FALSE.

DataExplorer 0.2.6

Bug Fixes

• #20: Fixed permission denied bug due to intermediates_dir argument in knitr::render.

Enhancements

• #16: Improved handling of missing values.

DataExplorer 0.2.5

Bug Fixes

• #18: GenerateReport now handles data without discrete or continuous features.

Enhancements

• #14: Updated rmarkdown template for GenerateReport.
• #1: Features with all NA values will be ignored in BarDiscrete.

DataExplorer 0.2.4

Bug Fixes

• Fixed a major bug in GenerateReport function due to package renaming.

Enhancements

• GenerateReport will now print the directory of the report to console.

DataExplorer 0.2.3

New Features

• Added function CollapseCategory to collapse sparse categories for discrete features.
• Added correlation heatmap for both continuous and discrete features.
• Added density plot for continuous features.

Bug Fixes

• Fixed a bug in BarDiscrete and CorrelationDiscrete for not plotting non-factor class.
• Minor changes for CRAN re-submission.

Enhancements

• Changed grid layout for BarDiscrete and HistogramContinuous.
• Features with all missing values will be ignored.
• Switched position between continuous and discrete features in report template.
• Renamed package name to DataExplorer.
• Added NEWS.md.
• Removed BoxplotContinuous.