Sum of the elements of rows of matrix
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lets say i have A=[1 2 1;3 2 1;3 5 4] and i want to sum up row elements separately and show me results as "Ri=..." here "i" is number of row. in this case R1=7, R2=9. R3=6.
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Matt J
2014년 5월 28일
It sounds like you really mean "sum up column elements". The elements you are summing all belong to a common column, not a common row.
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Jos (10584)
2014년 5월 28일
You do not want to store the results in separate variables R1, R2, etc., but rather as elements of a single variable R, with R(1), R(2), etc.
A = magic(3)
RowSum = sum(R,2)
help sum
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Jos (10584)
2014년 5월 28일
What do you mean, "not working"? Did you read the help of sum?
May be you want to sum along rows rows, i.e., sum the elements in each column?
ColumnSum = sum(R,1)
Next time, be a little bit more specific ...
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