Displaying 5 results from an estimated 5 matches for "mathgraph".
2005 Oct 11
0
Set Covering Problem (SCP) (in mathgraphs)
Dear All,
Can I solve a "Set Covering Problem" (in a mathgraph) using R?
Which package should I use for that?
Thank you in advance.
Sara Maltez Mouro
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2007 Nov 13
2
connection diagram
Hi
I am practically new to R, and need to construct connection diagrams,
I have a table of data, of nodes in vertical rows, and horizontally
the number of outgoing connections to other nodes, and the indices of
these nodes, each in a column, so some columns are used, and some are
not, based on how many connections I have
the node is identified by these variables (dimension, wave number,
2007 Mar 16
1
Implementing trees in R
Hi all,
I am rather new to R. Recently I have been trying to implement some
tree algorithms in R. I used lists to model tree nodes. I thought
something like this would work:
parent <- list();
child <- list();
parent$child1 <- child;
child$parent <- parent;
When I tried to check whether a node is its parent's first child
using "if
2008 Jul 19
2
Non-linearly constrained optimisation
Dear R Users,
I am looking for some guidance on setting up an optimisation in R with
non-linear constraints.
Here is my simple problem:
- I have a function h(inputs) whose value I would like to maximise
- the 'inputs' are subject to lower and upper bounds
- however, I have some further constraints: I would like to constrain the
values for two other separate function f(inputs) and
2007 Mar 26
1
Problem in loading all packages all at once
...ot;,"lspls","ltm","maanova","magic","mapLD","mapproj","maps","maptools","maptree","mAr","marg","MarkedPointProcess","MASS","Matching","MatchIt","mathgraph","matlab","Matrix","maxstat","MBESS","mblm","mcgibbsit","mclust","mcmc","MCMCpack","mda","MEMSS","merror","meta","methods","mfp","mgcv"...