Hi Yun, Did you download hopach from CRAN or from BioC? The version on CRAN is for general use (not specifically arrays) and therefore does not include some of the array-specific funcitons like hopach2tree. If you have this one, try installing the version from BioC. If this isn't the problem, let me know. But, hopach2tree should be in the BioC version. Cheers, Katie ***** Date: Fri, 26 Aug 2005 11:40:06 +1000 From: z3076426@student.unsw.edu.au Subject: [BioC] About Hopach package To: bioconductor at stat.math.ethz.ch Message-ID: <1125020405.430e72f6042d1 at unimail.unsw.edu.au> Content-Type: text/plain; charset=ISO-8859-1 Hi, After I installed the hopach package, I couldn't find the hopach2tree function which is supposed to be included. Just wondering how can I get the function or is there any other way to visualize the clustering results? Best regards, Yun Zhang