[R] Finding sparse cuts in a graph

2014-07-11 Thread Anirudh Kondaveeti
Is there an algorithm to find sparse cuts in a graph ? I am looking to find the best cut which minimizes the sparsity of a graph. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-

Re: [R] Using RPostgreSQL

2014-06-23 Thread Anirudh Kondaveeti
Just to add to the previous message: ad_data_new table has less than 10 columns. Anirudh Kondaveeti <https://sites.google.com/a/asu.edu/anirudh-kondaveeti/> Senior Data Scientist Pivotal (EMC) On Mon, Jun 23, 2014 at 4:15 PM, Anirudh Kondaveeti < anirudh.kondave...@gmail.com> wrot

[R] Using RPostgreSQL

2014-06-23 Thread Anirudh Kondaveeti
Hi All, I am using RPostgreSQL to pull data from Greenplum database. I have successfully connected to the database and am using the following command to retrieve the first 100 records from a table by the name "ad_data_new" s <- dbSendQuery(con, "select * from ad_data_new limit 100") This is taki

[R] randomForest

2012-02-08 Thread Anirudh Kondaveeti
Hi I have a dataset with a few variables but two variables are very important. One of them is say S1 and other S2. S1 is a numeric variable and S2 is a categorical variable. Consider two cases of S1-S2 pair like S1 = 70.2, S2 = A and S1 = 70.21, S2 = B. Assume my dataset has 20 instances of the f

[R] Piecewise Aggregate approximation

2009-05-25 Thread Anirudh Kondaveeti
. Thanks! Anirudh Kondaveeti Graduate Assistant Quality & Reliability Engineering Laboratory Dept of Industrial, Systems & Operations Engg Arizona State University Ph: (cell) 814-321-4454 [[alternative HTML version deleted]] __

[R] Pruning trees in a Random Forest

2009-03-20 Thread Anirudh Kondaveeti
clear on what I mean by a level. Level 0 is the parent node, Level 1 has 2 daughter nodes, Level 2 has 4 daughter nodes, Level 3 has 8 daughter nodes etc. Thanks in advance! Anirudh Kondaveeti [[alternative HTML version deleted

Re: [R] randomForest

2009-03-20 Thread Anirudh Kondaveeti
Thanks a lot. That should help! Anirudh Kondaveeti 2009/3/20 Uwe Ligges > > > Uwe Ligges wrote: > >> >> >> Anirudh Kondaveeti wrote: >> >>> To be more clear, >>> >>> My data set contains two classes..

Re: [R] randomForest

2009-03-20 Thread Anirudh Kondaveeti
forest with 500 trees. Also the Class 2 should have different 300 rows for different trees in the forest. Thanks! Anirudh Kondaveeti On Fri, Mar 20, 2009 at 1:45 PM, Anirudh Kondaveeti < anirudh.kondave...@gmail.com> wrote: > sampsize uses the same sample fo

Re: [R] randomForest

2009-03-20 Thread Anirudh Kondaveeti
sampsize uses the same sample for all the trees in the random Forest. But I want to use different sample for each tree of the 500 trees in the random Forest. Thanks! Anirudh Kondaveeti 2009/3/20 Uwe Ligges > > > Anirudh Kondaveeti wrote: > >&

[R] randomForest

2009-03-19 Thread Anirudh Kondaveeti
the data set and use it for different trees in the forest. I mean each tree of the forest should use a different 500 rows from the data set. Thanks in advance! Anirudh Kondaveeti [[alternative HTML version deleted

[R] clust with "hclustWard"

2009-03-03 Thread Anirudh Kondaveeti
message appears in the code and I could not find it. Please let me know how can I make the clust work for "hclustWard" method. Thanks! Anirudh Kondaveeti [[alternative HTML version deleted]] __ R-help@r-