This should set the first two ia==4 entries to 1 in saccade column:
> x <- read.table('/tempxx.txt.r', header=TRUE)
> x
vp trial ia saccade
1 1 1 5 0
2 1 1 5 0
3 1 1 5 0
4 1 1 5 1
5 1 1 5 1
6 1 1 9 1
7 1 1 9
Hello,
I have run an eye-tracking experiment for which I now like to analyse the saccades. Participants looked from a fixation cross (ia = 5) to the target area (ia = 4) in following example of a data frame. ia = 9 stands for everything else. A saccade is indicated by saccade = 1. Sometimes the s
2 matches
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