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Sum all answers from structured array field

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BOB
BOB 2017-11-1
评论： BOB 2017-11-1
Hi,
I'm trying to sum all values from one field of a structured array:
(X(k(1:end)).NumberSamples)
ans =
3692
ans =
3420
ans =
2470
ans =
3382
I want to add these values together, however I can't use
sum(X(k(1:end)).NumberSamples)
Is there a way around this that sums the answers from the original input (X(k(1:end)).NumberSamples)?
Thanks

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Guillaume
Guillaume 2017-11-1
编辑：Guillaume 2017-11-1
Simply,
sum([X(k).NumberSamples])
Note the use of [] to convert the comma separated list returned by X(k).NumberSamples into a vector that can be summed.

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