I have a data file where one tab contains the picture that was presented on the screen another tab has the timestamp. Below is a really short version of what it looks like.
Dog 1msDog 2msDog 3msCat 4msCat 5msCat 6msDog 7msDog 8msDog 9msCat 10msCat 11msCat 12ms
I need to get the rows with the first instance in the grouping (?) of that picture with the timestamp. Below is what I want to have:
Dog 1msCat 4msDog 7msCat 10ms
I'm not sure how to go about doing this; any help would be appreciated!
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