opiClose_for_MAIA {OPI} | R Documentation |
Implementation of opiClose for the MAIA machine.
Description
This is for internal use only. Use opiClose()
with
these Arguments and you will get the Value back.
Value
A list with elements
-
err
, which is an error code, NULL for no error -
fixations
, which is a matrix one row per fixation and four columns:-
time
(same astime_hw
inopiPresent
) -
flags
Bit 0(same astime_hw
inopiPresent
)bit 0: 1 if the tracking event is valid (quality>threshold), 0 otherwise (in this case, x and y shall be =0)
bit 2: 1 if a stimulus was being presented during the tracking event, 0 otherwise
bit 3: 1 if the tracking was enabled during the tracking event, 0 otherwise
bits 16..31: ID of the stimulus being presented (if bit 2 == 1)
-
x
(degrees relative to the centre of the image returned byopiInitialise
- not the PRL) -
y
(as for x)
-