check_ia
(Package: VWPre) :
Check the interest area IDs and labels
check_ia examines both the interest area IDs and interest area labels (and their mapping) for both eyes. It returns a summary of the information.
● Data Source:
CranContrib
● Keywords:
● Alias: check_ia
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relabel_na
(Package: VWPre) :
Relabel samples containing 'NA' as outside any interest area
relabel_na examines interest area columns (LEFT_INTEREST_AREA_ID, RIGHT_INTEREST_AREA_ID, LEFT_INTEREST_AREA_LABEL, and RIGHT_INTEREST_AREA_LABEL) for cells containing NAs. If NA, the missing values in the ID columns are relabeled as 0 and missing values in the LABEL columns are relabeled as 'Outside'.
● Data Source:
CranContrib
● Keywords:
● Alias: relabel_na
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ds_options
(Package: VWPre) :
Determine downsampling options based on current sampling rate
ds_options determines the possible rates to which the current sampling rate can downsampled. It then prints the options in both bin size (milliseconds) and corresponding sampling rate (Hertz).
● Data Source:
CranContrib
● Keywords:
● Alias: ds_options
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check_samples_per_bin
(Package: VWPre) :
Check the number of samples in each bin
check_samples_per_bin determines the number of samples in each bin produced by bin_prop. This function may be helpful for determining the obligatory parameter 'ObsPerBin' which is input to transform_to_elogit.
● Data Source:
CranContrib
● Keywords:
● Alias: check_samples_per_bin
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check_time_series examines the first value in the Time column for each event. If they are equal, it will return a single value. The returned value should be equal to 0 minus the offset.
● Data Source:
CranContrib
● Keywords:
● Alias: check_time_series
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recode_ia
(Package: VWPre) :
Recode interest area IDs and/or interest area labels
recode_ia replaces existing interest area IDs and/or labels for both eyes. For subsequent data processing, it is important that the ID values range between 0 and 8 (with 0 representing Outside all predefined interest areas). LEFT_INTEREST_AREA_ID, RIGHT_INTEREST_AREA_ID, LEFT_INTEREST_AREA_LABEL, and RIGHT_INTEREST_AREA_LABEL) for cells containing NAs. If NA, the missing values in the ID columns are relabeled as 0 and missing values in the LABEL columns are relabeled as 'Outside'.
● Data Source:
CranContrib
● Keywords:
● Alias: recode_ia
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VWPre
(Package: VWPre) :
VWPre: Tools for Preprocessing Visual World Data.
The VWPre package provides a set of functions for preparing Visual World data collected with SR Research Eyelink eye trackers.
● Data Source:
CranContrib
● Keywords:
● Alias: VWPre, VWPre-package
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plot_indiv_app
(Package: VWPre) :
Plots diagnostic average plots of subjects/items.
plot_indiv_app calculates and plots interest area averages for a given subject/item.
● Data Source:
CranContrib
● Keywords:
● Alias: plot_indiv_app
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prep_data
(Package: VWPre) :
Check the classes of specific columns and re-assigns as necessary.
prep_data converts the data frame to a data table and examines the class of the following columns: Subject, Item, LEFT_INTEREST_AREA_ID, RIGHT_INTEREST_AREA_ID, LEFT_INTEREST_AREA_LABEL, RIGHT_INTEREST_AREA_LABEL, TIMESTAMP, and TRIAL_INDEX. If they were not encoded with the correct class upon importing the data, the function will reassign the class and print a summary of the reassignments. Additionally, the data table output by the function contains a new column called Event which indexes each unique series of samples corresponding to the combination of Subject and TRIRAL_Index, necessary for performing subsequent operations.
● Data Source:
CranContrib
● Keywords:
● Alias: prep_data
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plot_transformation_app
(Package: VWPre) :
Plots diagnostic plots of the empirical logit transformation.
plot_transformation_app plots the empirical logit values for a given number of observations and constant against proportions.
● Data Source:
CranContrib
● Keywords:
● Alias: plot_transformation_app
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