datacleanr is a flexible and efficient tool for interactive data cleaning, and is inherently interoperable, as it seamlessly integrates into reproducible data analyses pipelines in
It can deal with nested tabular, as well as spatial and time series data.
The latest release on CRAN can be installed using:
You can install the development version of
datacleanr is developed using the shiny package, and relies on informative summaries, visual cues and interactive data selection and annotation. All data-altering operations are documented, and converted to valid
R code (reproducible recipe), that can be copied, sent to an active
RStudio script, or saved to disk.
There are four tabs in the app for these tasks:
Rexpression to filter/subset data.
dcr_appalso returns all intermediate and final outputs invisibly to the active
Rsession for later use (e.g. when batch processing)
Note, maps require columns
lat (X and Y) in decimal degrees in the data set to render.
FALSE) column named
.dcrflagis present, corresponding observations are rendered with different symbols in plots and maps. Use this feature to validate or cross-check external quality control or outlier flagging methods.
The documentation for (
?dcr_app()) explains the basic use and all features. Throughout the app, there are conveniently-placed help links that provide details on features.
datacleanr’s interactive app with
dcr_app(). The following examples demonstrate basic use and highlight features across the four app tabs.
Define the grouping structure (used throughout app for scoping filters and plotting), and generate an informative overview.
Add/Remove filter statement boxes, and apply (valid) expressions - either to the entire data set, or scoped to individual groups. Filtering relies on
R expressions passed to
dplyr::filter(), so, for example, valid statements for
Any function returning a logical vector (i.e.
FALSE), can be employed here!
Interactive visualization allow seamless scrolling, panning and zooming to select and annotate individual observations (or sections with lasso/box select tool). Show and hide groups using the group selection table (left) or the legend (right).
POSIXct column (in X or Y dimension) can be used to visualize time series. Use the
Toggle Lines button above the plot to facilitate exploration.
library(dplyr) dplyr::glimpse(treering) tree_df <- data.frame(year = -6000:1979, val = treering) # make synthetic data tree_data <- list(tree_A = tree_df, tree_B = tree_df %>% mutate(val = val + rnorm(nrow(.), 0.5, 0.2)), tree_C = tree_df %>% mutate(val = val + rnorm(nrow(.), mean = -0.03, 0.1))) %>% bind_rows(.id = "tree") # group by tree and inspect dcr_app(tree_data)
(Note, selections are arbitrary and for demonstration only)
Interactive maps rely on Mapbox for plotting. Therefore, you will need to make an account, from which an access token needs to be copied into your
MAPBOX_TOKEN=your_copied_token). A simple way to do this is using the convenient
usethis package to access the file:
lat for plotting to get started.
All grouping, filtering and selections/annotations are translated to
R code, which can be sent to an
RStudio script, copied to the clipboard, or - when
dcr_app is launched with a file path - save options are made available. For large selections/annotations we recommend saving the script separately, and sourcing it (i.e.
source("your_datacleanr_script.R")) during later analyses.
Caution: When selections / annotations are greater than ~ 1000 points, it is recommended to use
datacleanr with an
*.RDS file (see below). This is because the resulting Reproducible Recipe (script) can slow down the RStudio IDE, if it has more than a few thousand lines.The next version of
datacleanr will allow choosing between script-only recipes, and the option with an the intermediate file for storing annotations. Both approaches with their current implementation are shown shown below.
Launching with an object from
And output from extract tab:
# datacleaning with datacleanr (0.0.1) # ##------ Wed Oct 07 12:54:03 2020 ------## library(dplyr) library(datacleanr) # adding column for unique IDs; iris$.dcrkey <- seq_len(nrow(iris)) iris <- dplyr::group_by(iris, Species) # stats and scoping level for filtering filter_conditions <- structure(list(filter = "Sepal.Width > 2.7", grouping = list(NULL)), row.names = c(NA, -1L), class = c("tbl_df", "tbl", "data.frame")) # applying (scoped) filtering by groups; iris <- datacleanr::filter_scoped_df(dframe = iris, condition_df = filter_conditions) # observations from manual selection (Viz tab); iris_outlier_selection <- structure(list(.dcrkey = c(15L, 16L, 19L, 34L), .annotation = c("", "", "", "")), class = "data.frame", row.names = c(NA, -4L)) # create data set with annotation column (non-outliers are NA); iris <- dplyr::left_join(iris, iris_outlier_selection, by = ".dcrkey") # remove comment below to drop manually selected obs in data set; # iris <- iris %>% dplyr::filter(is.na(.annotation))
Launching with an
.RDS from disk:
COSORE is a community-driven soil respiration database, recently introduced with a manuscript published here by Bond-Lamberty et al.. The database provides soil respiration flux estimates, as well as meta data across multiple data sets. Let’s explore!
remotes::install_github("bpbond/cosore") library(dplyr) # check data base info db_info <- cosore::csr_database() tibble::glimpse(db_info) # grab one data set and explore in detail dset <- "d20190409_ANJILELI" anjilleli <- cosore::csr_dataset(dset) tibble::glimpse(anjilleli$description) datacleanr::dcr_app(anjilleli$data)
Explore sampling locations:
Explore nested data sets:
Please note that the
datacleanr project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.