Error using bitset fuction

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kash
kash 2012-11-22
i have value A=46;
i used bitset function to change the second bit ,i get abswer ,but how to change the last 2 bits ,i tried using
X=bitset(A,1:2,1); setting last two bits to one
please help

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Walter Roberson
Walter Roberson 2012-11-22
bitset() is not defined to be able to change two bits at a time.
bitset(bitset(A, 1, 1), 2, 1)
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kash
kash 2012-11-22
Thanks walter also i tried A(:,end-2:end)=1;
it also returns error
Walter Roberson
Walter Roberson 2012-11-22
A is only of length 1, so end-2 would be trying to access column -1.
Indexing of numeric data does not access bits.

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