sums-up | SumTypes in TypeScript | Functional Programming library
kandi X-RAY | sums-up Summary
kandi X-RAY | sums-up Summary
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QUESTION
What I look for is basically an R-version of the answer to this question: Generating all permutation of numbers that sums up to N. First of all the answer uses java, which I have a really hard time reading. Second of all the code uses "deque", which I cant figure out a way to implement in R. I have found several algorithms to do this, but they have all been written in programming languages using structures not available in R such as deques, heaps or list-comprehensions.
What I actually need is a way of finding all the vectors v
of length N-1 where:
sum(v * 1:(N-1)) == N
and I think I can manage that myself if only I find a way of obtaining all the ordered integer partitions.
As an example for N = 4 all the ordered integer partitions using numbers 1 to N-1 are:
...ANSWER
Answered 2020-Oct-07 at 21:00Hope parts
from package partitions
could help
QUESTION
I'm trying to update a column in one table so that it sums-up all the values in another table associated with a particular key. I can't get the syntax right and I can't find an answer to this problem on the web.
I've tried changing where I put the "SUM" but it won't work.
Here's the code:
...ANSWER
Answered 2019-Apr-15 at 13:05You should use the SUM function in the subquery and assign the result to the main table..
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