python functions' documentation

littletom
30 ●2 ●4 ●8

for example : PCACompute(data, mean[, eigenvectors[, maxComponents]]) in this documentation,what does these square brakets mean???

1 answer

berak
32993 ●7 ●81 ●312

the arguments in square brackets are optional (and you might skip them).

note, that if you skip some args, but call a later one, like maxComponents, you have to do it in key=value style, like:

data = ...
mean = None
cv2.PCACompute(data, mean, maxComponents=32)

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Asked: 2016-09-03 03:23:02 -0600

Seen: 144 times

Last updated: Sep 03 '16