Select first or last rows/columns

Usage

# S3 method for class 'tidymatrix'
slice_head(.data, n, prop, ...)

# S3 method for class 'tidymatrix'
slice_tail(.data, n, prop, ...)

Arguments

.data: A tidymatrix object
n: Number of rows/columns to select
prop: Proportion of rows/columns to select
...: Not used

Value

A tidymatrix object with selected data

Examples

library(dplyr, warn.conflicts = FALSE)
tm <- tidymatrix(big5_responses, big5_respondents, big5_items)

tm |>
  activate(rows) |>
  slice_head(n = 5)
#> # A tidymatrix: 5 x 30 matrix
#> # Active: rows
#> #
#> # Row data: 5 rows x 8 columns
#> # Column data: 30 rows x 5 columns
#> #
#> # Active data (rows):
#>   respondent_id age gender education     occupation country life_satisfaction
#> 1          R001  52 Female Secondary Service/Manual      EE                 8
#> 2          R002  32 Female    Master         Office      FI                 4
#> 3          R003  66   Male  Bachelor         Office      EE                 6
#> 4          R004  42   Male  Bachelor   Professional      EE                 9
#> 5          R005  48 Female Secondary         Office      FI                 8
#>   completion_min
#> 1           19.8
#> 2            6.2
#> 3            6.3
#> 4            9.7
#> 5           14.2

tm |>
  activate(columns) |>
  slice_tail(prop = 0.1)
#> # A tidymatrix: 400 x 3 matrix
#> # Active: columns
#> #
#> # Row data: 400 rows x 8 columns
#> # Column data: 3 rows x 5 columns
#> #
#> # Active data (columns):
#>   item_id    trait reversed                            item_text position
#> 1      O4 Openness    FALSE I am quick to understand new things.       20
#> 2      O5 Openness     TRUE   I avoid philosophical discussions.       25
#> 3      O6 Openness     TRUE         I prefer routine to variety.       30