Displaying 5 results from an estimated 5 matches for "steinep".
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2002 Jan 27
1
DBM databases for R?
Hello!
Can I use DBM databases (as they are used in Perl) for the import of
large datasets in R?
Thanks in advance for your help,
Petra Steiner
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Petra Steiner
Arbeitsbereich Linguistik
Universitaet Muenster
Huefferstrasse 27
48149 Muenster
2002 Mar 26
1
comparing row by row in matrix
...ix multiplication does this row-by-column, so if M and N are
two binary matrices, M%*%t(N) will have (i,j) entry equal to the count of 1s
in common to row i of M and row j of N.
Hope I've understood the problem correctly.
Reid Huntsinger
-----Original Message-----
From: Petra Steiner [mailto:steinep at uni-muenster.de]
Sent: Tuesday, March 26, 2002 2:08 PM
To: r-help at stat.math.ethz.ch
Subject: [R] comparing row by row in matrix
Hello,
and thanks for the two responses to my questions on binary matrixes, which
showed me that the functions I needed do not exist.
To get a distance matrix wi...
2002 Jan 09
1
Distance matrix by cosine?
Hello,
a. is there a possibility to obtain a distance matrix with the cosine between vectors?? hclust, hierclust, dist will not work and seem to be hard to extend.
b. if there is not: Is the cosine between vectors implemented somewhere?
Thanks for all hints and advice!
Petra Steiner
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2002 Jan 25
1
Fw: Summary for Distance matrix by cosine?
Dear all,
below you find enclosed my message from January 9th and my program
(attention: beginner).
Thanks for both answers! a. However, as far as I know the cosine is not the
same as the Pearson correlation (only in special cases).
b. Reid Huntsinger's hint was very useful, however I had to transpose the
matrix first, for I want to calculate the distance of the _rows_.
Regards,
Petra
2002 Apr 07
3
German umlaut in xlab
Dear all,
which font do I have to choose to use German umlauts at x/ylab in plot? Do I
have to change Rdevga; and how? Or should I use these Hershey vectors?
I looked quite a long time for a solution, which should be easy, so I
thought I'd better ask here.
Maybe some other people have already solved this problem.
Regards,
Petra
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Petra