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Fudan

5 total contributions since 2013

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Question


Matrix padding with logical index
I have a matrix(6 by 3) of different row lengths: 0.9969 0.9724 0.3951 0.3590 0.5865 0.3983 0.6252 ...

meer dan 5 jaar ago | 2 answers | 0

2

answers

Question


Find instances in workspace by their properties
I have several instances of different classes in workspace, and I want to first get the instances instantiated from one class an...

meer dan 5 jaar ago | 0 answers | 0

0

answers

Question


Vector and matrices dotwise multiplication
I have a n elements vector a1 a2 ... an and n same-sized matrices b1 b2 ... bn how can I do a1*b1 + a2*b2 + ... + an*bn wi...

meer dan 6 jaar ago | 1 answer | 0

1

answer

Answered
how to index a matrix by using a index matrix that has same size?
to be more specific, it's something like(it's actually 300 by 5500 in my case): A = 0.9649 0.4854 0.9157 0....

meer dan 6 jaar ago | 0

Question


how to index a matrix by using a index matrix that has same size?
I have a m by n data matrix and a m by n index matrix which rearranges the order of the n elements in each row of the data matri...

meer dan 6 jaar ago | 3 answers | 0

3

answers