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2005 Aug 18
2
A. Mani : Avoiding loops
Hello, I want to avoid loops in the following situation. There is a 5-col dataframe with col headers alone. two of the columns are non-numeric. The problem is to calculate statistics(scores) for each element of one column. The functions depend on matching in the other non-numeric column. A B C E F 1 2 X Y 1 2 3 G L 1 3 1 G L 5 and so on ...30000+ entries. I need scores
2005 Aug 22
0
R-help Digest, Vol 30, Issue 22
Re: A. Mani : Avoiding loops (Petr Pikal) > Message: 9 > Date: Mon, 22 Aug 2005 06:40:45 +0200 > From: "Petr Pikal" <petr.pikal at precheza.cz> > Subject: Re: [R] A. Mani : Avoiding loops > To: "A. Mani" <a_mani_sc_gs at vsnl.net>, r-help > <r-help at stat.math.ethz.ch> > > On 20 Aug 2005 at 3:26, A. Mani wrote: > > > On Friday 19 August 2005 11:54, Sean O'Riordain wrote: > > > Hi, > > > I'm not sure what you actually want from your email (following the &g...
2005 Aug 19
0
Re : A. Mani : Avoiding Loops
...I could also have said > > > sum(fred[fred$C=="G",]$E) > > [1] 6 > > Hmmm.... I wonder would it be reasonable to put an example of this > type into section 2.7 of the "Introduction to R"? > > > cheers! > Sean > > On 18/08/05, A. Mani <a_mani_sc_gs at vsnl.net> wrote: > > Hello, > > I want to avoid loops in the following situation. There is a > > 5-col dataframe with col headers alone. two of the columns are > > non-numeric. The problem is to calculate statistics(scores) for each > > element of one co...
2005 Jun 28
0
R-help Digest, Vol 28, Issue 28
....math.ethz.ch wrote: Re : 37. Re: A. Mani : colours in Silhouette (Mulholland, Tom) > > Message: 37 > Date: Tue, 28 Jun 2005 09:08:24 +0800 > From: "Mulholland, Tom" <Tom.Mulholland at dpi.wa.gov.au> > Subject: Re: [R] A. Mani : colours in Silhouette > To: <a_mani_sc_gs at vsnl.net>, <r-help at stat.math.ethz.ch> > Message-ID: > <4702645135092E4497088F71D9C8F51A128BAF at afhex01.dpi.wa.gov.au> > Content-Type: text/plain; charset="iso-8859-1" > > It's not so much a problem, as not working the way you expected. > clus...
2005 Jun 27
1
A. Mani : colours in Silhouette
Hello, In cluster analysis with cluster, how does one colour the silhouette plots ? For example in using pam. There seems to be some problem there. Everything else can be coloured. Thanks, A. Mani Member, Cal. Math. Soc