Displaying 2 results from an estimated 2 matches for "tobebryant".
2013 Sep 02
1
Convert chr pieces to numbers that have specific values defined by 2 vectors
...l there is a code like
"2E3", "4RR", etc.
I now have a list that replaces this with values, e.g.,
old new
2E3 5
4RR 3
etc.
The list ist about 1600 rows long, so also to extensive for normal solutions
Do you how to do that? It would be great if you could help me,
best,
tobebryant
2013 Sep 26
2
Sums based on values of other matrix
Dear all,
I have a big problem:
- I got two matrices, A and B
- A shows identifies the value of B, however the values of B must be summed
- For instance,
1 1 2 2
2 2 1 1
gives matrix a
3 4 2 1
1 1 2 2
gives matrix b
Now the result for the value 1 would be
7
4
which are the rowsums of the values of matrix B given that matrix A has the value 1.
How can I do this automatically? I