newdata {fpa} | R Documentation |
Fixation probability data generated by ft2fp() function
Description
This data set is the fixation probability data generated by the ft2fp() function. The data set retains the information of list, subject, and condition of original fixation time data set. The variable "Time" is generated based on the TimeCourse and TimeInterval arguments defined by users. The variable "N" is the total number of valid trials after the deletion of invalid ones for the corresponding spatio-temporal unit. The variable "y" is the number of trials with fixations on that particular region at that time point. Fixation probability is calculated by dividing y by N. "N" and "y" would be used for further analysis in empirical logistic transformation and lme modeling.
Usage
data(newdata)
Format
In the data frame each row represents the fixation probability and other information for one spatio-temporal unit. The data frame has the following columns:
list
the id of the list
subject
the id of the subject
condition
the id of the condition
region
the id of the region
Time
the time after eyes leave critical region
N
total number of valid trials
y
number of trials with fixations
fix_prob
the fixation probability