neatStats (version 1.13.3)

excl_neat: Exclusion

Description

Filters dataset by rows (normally: subjects, observations) and prints the numbers of excluded rows and remaining rows. Returns the filtered dataset and (optionally) also the excluded rows.

Usage

excl_neat(
  dat,
  filt,
  excluded = FALSE,
  group_by = NULL,
  sort_by = "exclusion",
  hush = FALSE
)

Value

A data frame with the rows for which the filt expression is

TRUE, or, optionally, a list with this data frame plus a data frame with the excluded rows. At the same time, prints, by default, the count of remaining and excluded rows.

Arguments

dat

Data frame to be filtered.

filt

An expression to use for filtering, by column values, the dat data frame. (Only the rows for which the filter expression is TRUE will be kept.)

excluded

Logical; FALSE by default. If TRUE, the function returns not only the filtered data frame, but also a data frame containing the excluded rows. The returned object in this case will be a list with two elements: (1) the filtered data frame named filtered, and (2) the data frame with excluded rows named excluded (see Examples).

group_by

String, or vector of strings: the name(s) of the column(s) in the dat data frame, containing the vector(s) of factors by which the printed counts are grouped.

sort_by

String; specifies whether the printed counts should be sorted by exclusion (default; "exclusion" or its short forms, e.g. "excl"), or by the factors given for group_by (for this, give any other string, e.g. "conditions"). If NULL (default).

hush

Logical. If TRUE, prevents printing counts to console.

See Also

aggr_neat

Examples

data("mtcars") # load base R example dataset

# filter mtcars for mpg > 20
excl_neat(mtcars, mpg > 20)

# assign the same
mtcars_filtered = excl_neat(mtcars, mpg > 20)
# (mtcars_filtered now contains the filtered subset)

# return and assign excluded rows too
mtcars_filtered_plus_excluded = excl_neat(mtcars, mpg > 20, excluded = TRUE)

# print filtered data frame
print(mtcars_filtered_plus_excluded$filtered)

# print data frame with excluded rows
print(mtcars_filtered_plus_excluded$excluded)

# group printed count by cyl
excl_neat(mtcars, mpg > 20, group_by = 'cyl')

# sort output by grouping
excl_neat(mtcars, mpg > 20, group_by = 'cyl', sort_by = 'group')

# group by cyl amd carb
excl_neat(mtcars, mpg > 15, group_by = c('cyl', 'carb'))

# longer filter expression
excl_neat(mtcars, mpg > 15 & gear == 4, group_by = 'cyl',)