Dear All，
I am a beginner in learning the package of Biostrings currently and for
practice doing an example.
library(Biostrings);
dnaAlph<-new("BioPatternAlphabet",DNAAlphabet(),c(N="AGCT",
+ B="CGT",D="AGT",H="ACT",K="GT",M="AC",R="AG",S="CG",
+ V="ACG",W="AT",Y="CT"));
Error in getClass(Class, where = topenv(parent.frame())) :
"BioPatternAlphabet" is not a defined class
I am running R 2.4.1, Wimdows XP, Biostrings_2.2.1
Any help or suggestions that you can provide will be greatly appreciated.
Qing
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