Displaying 6 results from an estimated 6 matches for "mincut".
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2009 Mar 19
1
Minimum cutsets
The minCut function in RBGL package returns only a value or the minimum cut. I would be
really greatful if any knows of any R function or package available for
finding all minimal cut sets ( i.e., components whose failure will
results in a network failure) between any given pair of vertices.
2009 Apr 09
1
request: maximum depth reached problem
...method = c("recursive.partitioning"), :
maximum depth reached
The structure of getting output is given below:
iris.tr = tree(Species ~., data=training.data, method=c("recursive.partitioning"), split = c("gini"), control=tree.control(nobs = 150, minsize = 5, mincut = 2))
Any suggestion will be appreciated to handle the above problem. Thanks and
best regards
Muhammad Azam
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2009 Apr 01
1
Request: Optimum value of cost complexity parameter "k" in "tree" package
...example below i used k=0 but i don't know why? But if i use k=NULL, then it will not plot the resultant tree.
library(tree)
ds=iris; iris=transform(iris, Species = factor(Species, labels = letters[1:3]))
miris <- tree(Species ~ ., data = iris, control=tree.control(nobs = 150, minsize = 5, mincut = 2)); iris.prun=prune.tree(miris, method=c("misclass"), best = NULL, k=0); iris.prun; summary(iris.prun); plot(iris.prun)
best regards
Muhammad Azam
[[alternative HTML version deleted]]
2002 Feb 21
2
question regarding to The tree Package for R
...t version)
tree (..)
Splus 6.0
Solaris 5.7
tree
dataset:
100,000 records
about 3 variables
regression tree
data read in from flat file,
summary() on R and Splus showed identical distributions
tree were run with all the deault setting (no mincut, minsize set etc)
with added options: minsize=2, mindev=-1, get the same small tree.
Did I miss anything?
thanks
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2012 Jun 18
0
igraph 0.6 released
....intersection.by.name(), graph.union.by.name(),
graph.difference.by.name(). Thanks to Magnus Torfason for
contributing his code!
- Function to calculate a non-induced subraph: subgraph.edges().
- More comprehensive maximum flow and minimum cut calculation,
see functions graph.maxflow(), graph.mincut(), stCuts(), stMincuts().
- Check whether a directed graph is a DAG, is.dag().
- has.multiple() to decide whether a graph has multiple edges.
- Added a function to calculate a diversity score for the vertices,
graph.diversity().
- Graph Laplacian calculation (graph.laplacian()) supports edge
we...
2012 Jun 18
0
igraph 0.6 released
....intersection.by.name(), graph.union.by.name(),
graph.difference.by.name(). Thanks to Magnus Torfason for
contributing his code!
- Function to calculate a non-induced subraph: subgraph.edges().
- More comprehensive maximum flow and minimum cut calculation,
see functions graph.maxflow(), graph.mincut(), stCuts(), stMincuts().
- Check whether a directed graph is a DAG, is.dag().
- has.multiple() to decide whether a graph has multiple edges.
- Added a function to calculate a diversity score for the vertices,
graph.diversity().
- Graph Laplacian calculation (graph.laplacian()) supports edge
we...