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Groups > comp.soft-sys.math.mathematica > #3153
| From | Ray Koopman <koopman@sfu.ca> |
|---|---|
| Newsgroups | comp.soft-sys.math.mathematica |
| Subject | Re: Partition a list based on columns |
| Date | 2011-06-17 04:06 +0000 |
| Organization | Steven M. Christensen and Associates, Inc and MathTensor, Inc. |
| Message-ID | <itejse$s0k$1@smc.vnet.net> (permalink) |
| References | <itcdai$d13$1@smc.vnet.net> |
On Jun 16, 1:02 am, StatsMath <stats.ma...@gmail.com> wrote:
> [...]
>
> What would be a good way to line up elements in a list in a diagonal
> fashion, for ex: from Range[9] want to create the follwing matrix:
>
> 1 2 4
> 3 5 7
> 6 8 9
This is better than my previous suggestion:
m[n_] := Partition[FoldList[Plus,0,Join[Range[n-1],Range[n-1,1,-1]]],
n, 1] + Range[n]
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Partition a list based on columns StatsMath <stats.math8@gmail.com> - 2011-06-16 08:02 +0000 Re: Partition a list based on columns Ray Koopman <koopman@sfu.ca> - 2011-06-16 10:24 +0000 Re: Partition a list based on columns Ray Koopman <koopman@sfu.ca> - 2011-06-17 04:09 +0000 Re: Partition a list based on columns Ray Koopman <koopman@sfu.ca> - 2011-06-17 04:06 +0000 Re: Partition a list based on columns DrMajorBob <btreat1@austin.rr.com> - 2011-06-17 09:52 +0000
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