The mark_resolution() function creates a column labeling
rows that have unacceptable screen resolution.
The function is written to work with data from
Qualtrics surveys.
Usage
mark_resolution(
x,
res_min = 1000,
width_min = 0,
height_min = 0,
id_col = "ResponseId",
res_col = "Resolution",
rename = TRUE,
quiet = FALSE,
print = TRUE
)Arguments
- x
Data frame (preferably imported from Qualtrics using {qualtRics}).
- res_min
Minimum acceptable screen resolution (width and height).
- width_min
Minimum acceptable screen width.
- height_min
Minimum acceptable screen height.
- id_col
Column name for unique row ID (e.g., participant).
- res_col
Column name for screen resolution (in format widthxheight).
- rename
Logical indicating whether to rename columns (using
rename_columns())- quiet
Logical indicating whether to print message to console.
Logical indicating whether to print returned tibble to console.
Value
An object of the same type as x that includes a column marking rows
that have unacceptable screen resolutions.
For a function that checks for these rows, use check_resolution().
For a function that excludes these rows, use exclude_resolution().
Details
To record this information in your Qualtrics survey, you must insert a meta info question.
Default column names are set based on output from the
qualtRics::fetch_survey().
The function outputs to console a message about the number of rows with unacceptable screen resolution.
See also
Other resolution functions:
check_resolution(),
exclude_resolution()
Other mark functions:
mark_duplicates(),
mark_duration(),
mark_ip(),
mark_location(),
mark_preview(),
mark_progress()
Examples
# Mark low screen resolutions
data(qualtrics_text)
df <- mark_resolution(qualtrics_text)
#> ℹ 3 out of 100 rows had screen resolutions less than 0 or height less than 0.
# Remove preview data first
df <- qualtrics_text %>%
exclude_preview() %>%
mark_resolution()
#> ℹ 2 out of 100 preview rows were excluded, leaving 98 rows.
#> ℹ 3 out of 98 rows had screen resolutions less than 0 or height less than 0.