computeSummaryStatisticsTable: Compute summary statistics for a specific dataset and...

View source: R/computeSummaryStatisticsTable.R

computeSummaryStatisticsTableR Documentation

Compute summary statistics for a specific dataset and variables of interest

Description

Compute summary statistics for a specific dataset and variables of interest

Usage

computeSummaryStatisticsTable(
  data,
  var = NULL,
  varFlag = NULL,
  varInclude0 = FALSE,
  varLab = NULL,
  varLabInclude = length(var) > 1,
  varGeneralLab = "Variable",
  varSubgroupLab = "Variable group",
  varIgnore = NULL,
  varIncludeTotal = FALSE,
  varTotalInclude = FALSE,
  varTotalInSepRow = FALSE,
  colVar = NULL,
  colVarDataLevels = NULL,
  colVarTotal = colVar,
  colVarTotalPerc = colVarTotal,
  colTotalInclude = FALSE,
  colTotalLab = "Total",
  colInclude0 = FALSE,
  rowVar = NULL,
  rowVarDataLevels = NULL,
  rowVarLab = NULL,
  rowOrder = "auto",
  rowOrderTotalFilterFct = NULL,
  rowOrderCatLast = NULL,
  rowVarTotalInclude = NULL,
  rowVarTotalInSepRow = NULL,
  rowVarTotalByVar = NULL,
  rowVarTotalPerc = NULL,
  rowInclude0 = FALSE,
  type = "auto",
  subjectVar = "USUBJID",
  dataTotal = NULL,
  dataTotalPerc = dataTotal,
  dataTotalRow = NULL,
  dataTotalCol = NULL,
  stats = NULL,
  statsVarBy = NULL,
  statsExtra = NULL,
  statsGeneralLab = "Statistic",
  statsPerc = c("statN", "statm"),
  filterFct = NULL,
  labelVars = NULL,
  byVar = NULL,
  byVarLab = NULL,
  checkVarDiffBySubj = "error"
)

Arguments

data

Data.frame with dataset to consider for the summary table.

var

Character vector with variable(s) of data, to compute statistics on.
If NULL (by default), counts by row/column variable(s) are computed.
To also return counts of the rowVar in case other var are specified, you can include: 'all' in the var.
Missing values, if present, are filtered (also for the report of number of subjects/records).

varFlag

Character vector, subset of var with variable(s) of type 'flag' (with 'Y', 'N' or ” for empty/non specified value). Only the counts for records flagged (with 'Y') are retained.

varInclude0

Logical, should rows with no counts for the count var or varFlag variable(s) be included in the table? Either:

  • logical of length 1, if TRUE (FALSE by default) rows with no count are included for all var

  • a character vector containing categorical var for which zero counts rows should be included

varLab

Named character vector with label for each variable specified in var. By default, extracted from the labelVars. if not available, var is used.

varLabInclude

Logical, if TRUE the name of the summary statistic variable(s) (var) are included in the table. This is automatically set to TRUE if more than one variable(s) and is specified, and FALSE if only one variable is specified.

varGeneralLab

String with general label for variable specified in var. In case of multiple variable in var, this will be included in the table header (see 'rowVarLab' attribute of the output).

varSubgroupLab

String with general label for sub-group of categorical variable(s) for count table, 'Variable group' by default. This will be included in the final table header (see 'rowVarLab' attribute of the output).

varIgnore

Vector with elements to ignore in the var variable(s). The data records with such elements in var are filtered from the data at the start of the workflow.

varIncludeTotal

This argument is deprecated, please use: 'varTotalInclude' instead.

varTotalInclude

Should the total across all categories of var be included for the count table? Only used for categorical variables (and var not 'all'). Either:

  • logical of length 1, if TRUE (FALSE by default) include the total for all categorical var

  • a character vector containing categorical var for which the total should be included

varTotalInSepRow

Logical, should the total per variable be included in a separated row (by default) or in the row containing the header of the variable?

colVar

Character vector with variable(s) to be included in columns. If multiple variables are specified, the variables should be sorted in hierarchical order, and are included in multi-columns layout.
Use: 'variable' to include the variables to summarize: var (if multiple) in different columns.

colVarDataLevels

Data.frame with unique combinations of colVar to be included in columns. Each column should correspond to colVar and as factor if the elements should be ordered in the final table.

colVarTotal

String with column(s) considered to compute the total by, reported in the header of the table, by default same as colVar. Use: 'variable' to compute total by var (if multiple).

colVarTotalPerc

String with column(s) considered to compute the total by, used as denominator for the percentage computation, by default same as colVarTotal. Use: 'variable' to compute total by var (if multiple).

colTotalInclude

Logical, if TRUE (FALSE by default) include the summary statistics across columns in a separated column.

colTotalLab

String, label for the total column 'Total' by default.

colInclude0

Logical, if TRUE (FALSE by default), include columns with no records, based on all combinations of the columnVar (assuming nested variable(s)). If variable(s) are not nested, possible combinations can be specified via colVarDataLevels.

rowVar

Character vector with variable(s) to be included in the rows. If multiple variables are specified, the variables should be sorted in hierarchical order (e.g. body system class before adverse event term) and are nested in the table.

rowVarDataLevels

Data.frame with unique combinations of rowVar to be included in columns. Each column should correspond to colVar and as factor if the elements should be ordered in the final table.

rowVarLab

Named character vector with label for the rowVar variable(s).

rowOrder

Specify how the rows should be ordered in the final table, either a:

  • String among:

    • 'auto' (by default): if the variable is a factor, keep its order, otherwise order alphabetically

    • 'alphabetical': order alphabetically

    • 'total': order rows in decreasing order of the total number of subjects across all columns for this specific category.

  • Function with input the summary table and output the ordered elements of the rowVar

To specify different ordering methods for different rowVar, specify a list of such elements, named with the rowVar variable. For the table output of computeSummaryStatisticsTable (long format), this order is also reflected in the levels of the row factor variable.

rowOrderTotalFilterFct

Function used to filter the data used to order the rows based on total counts (in case rowOrder is 'total'), To order rows based on one specific column category, e.g. to order based on the counts in the treatment column: function(x) subset(x, TRTP == "treatmentX")

rowOrderCatLast

String with category to be printed in the last row of each rowVar (if any, set to NULL if none).

rowVarTotalInclude

Character vector with rowVar for which the total should be reported.
If the higher row variable is specified, the total across all rows is reported.
For the export, these variable(s) are formatted as factor with 'Total' as the first level.

rowVarTotalInSepRow

Character vector with rowVarTotalInclude (not in rowVarInSepCol) for which the total should be included in a separated row labelled 'Total'. Otherwise (by default) the total is included in the header row of each category.

rowVarTotalByVar

Character vector with a row variable used to categorize the row total.
Note that this is only used if row total(s) is/are requested via rowVarTotalInclude, and this variable should also be included in rowVar. This can be specified also for a specific row variable if the vector is named.
For example: c(ADECOD = "AESEV") to compute total by severity for row adverse event term in a typical adverse event count table (by System Organ Class and Adverse Event Term).

rowVarTotalPerc

Character vector with row variables by which the total should be computed for the denominator for the percentage computation. By default the total is only computed only by column (NULL by default). If the total should be based on the total number of records per variable, rowVarTotalPerc should be set to 'variable'.

rowInclude0

Logical, if TRUE (FALSE by default), include rows with no records, based on all combinations of the rowVar (assuming nested variable(s)).

type

String with type of table:

  • 'summaryTable': summary table with statistics for numeric variable

  • 'countTable': count table

  • 'auto' (by default): 'summaryTable' if the variable is numeric, 'countTable' otherwise

subjectVar

String, variable of data with subject ID, 'USUBJID' by default.

dataTotal

Data.frame used to extract the Total number of subject per column in column header ('N = [X]'). It should contain the variables specified by colVarTotal. If not specified, the total number of subjects is extracted from the data.

dataTotalPerc

Data.frame used to extract the total counts per column for the computation of the percentage.
By default, dataTotal is used.
It should contain the variables specified by colVarTotalPerc.

dataTotalRow

Data.frame used to extract the total count across all elements of the row variable, list of such data.frame for each rowVar variable.
If the dataset is specified by row variable, the list should be named with: variable X if the total across elements of variable X should be included. By default, data is used.

dataTotalCol

Data.frame from which the total across columns is extracted (in case colTotalInclude is TRUE) or list of such data.frame for each rowVar variable.
If the dataset is specified by row variable, the list should be named with: with:

  • last row variable: for the dataset used in the total column for the most nested row variable

  • higher row variable (X+1): for the dataset used for the total column and row total of X

  • 'total': for the dataset used for the total column and general row total

If only a subset of the variables is specified in this list, data is used for the remaining variable(s) (or 'total') if needed.
This dataset (the one for 'total' if a list) is also used for:

  • the header of the total column in case dataTotal is not specified

  • the denominator of the percentages in the total column in case dataTotalPerc is not specified

By default, data is used.

stats

(optional) Statistic(s) of interest to compute, either:

  • string with the name of a default set of statistics available in the package, see section 'Formatted statistics' in in-text table statistics.
    See the corresponding type parameter of the getStatsData for more information on how the statistic is internally extracted.

  • (expert mode) named list of language object (see is.language) of base summary statistics of interest, see section: 'Base statistics' in in-text table statistics.
    The names are reported in the header.
    If stats if of length 1, the name of the summary statistic is not included in the table.
    The statistics can be specified separately:

    • for each var (if multiple), by naming each element of the list: list(varName1 = list(...), varName2 = list())

    • and/or for each element in: statsVarBy, by naming each sublist.

statsVarBy

String with variable in rowVar/colVar which the statistics should be computed by.
In this case, stats (nested list or not) should be additionally nested to specify the statistics for each element in statsVarBy.

statsExtra

(optional) Named list with functions for additional custom statistics to be computed.
Each function:

  • has as parameter, either: 'x': the variable (var) to compute the summary statistic on or 'data': the entire dataset

  • returns the corresponding summary statistic as a numeric vector

For example, to additionally compute the coefficient of variation, this can be set to: list(statCVPerc = function(x) sd(x)/mean(x)*100) (or cv).

statsGeneralLab

String with general label for statistics, 'Statistic' by default. Only included if no statsVar if longer than 1.

statsPerc

String with 'base statistical variable' used to compute the percentage, either:

  • 'statN' (by default): the number of subjects

  • 'statm': the number of records

filterFct

(optional) Function taking as input the summary table with computed statistics and returning a subset of the summary table.
Note: The filtering function should also handle records with :

  • total for the column header: isTotal set to TRUE, and colVar/rowVar is NA.
    For example: filterFct = function(data) subset(data, isTotal & myColVar == "group 1")

  • rowVar/colVar set to 'Total'/colTotalLab if rowVarTotalInclude/colTotalInclude is specified

labelVars

(optional) Named character vector with label for the row, column variable(s) or variable(s) to summarize.
Labels specified via dedicated parameter: e.g. rowVarLab, colVarLab, varLab have priority on this parameter.

byVar

Variable(s) of data for which separated table(s) should be created.

byVarLab

String with label for byVar, used to set the names of the output list of table(s).

checkVarDiffBySubj

String, 'error' (default), 'warning', or 'none'. Should an error, a warning, or nothing be produced if a continuous variable (var) contains different values for the same subject (by row/column)?

Value

An object summaryTable or list of such objects if byVar is specified.

Author(s)

Laure Cougnaud


inTextSummaryTable documentation built on June 22, 2024, 9:24 a.m.