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  • Null pointer exception in Java TreeView

    Hi all,
    I'm trying to K-means cluster some data using Cluster 3.0, then view it using Java TreeView (assorted links to software here http://bonsai.hgc.jp/~mdehoon/softwa...r/software.htm), but when I load the results of the clustering into TreeView, I get the following error:

    Code:
    loading /LabStuff/Data/Spring2013/25um_spacers_K_G20.cdt ... 
    Finding Cdt Dimensions
    Got null header, setting to empty string
    error parsing File: LoadException 1: Error Parsing CDT: java.lang.NullPointerException
    parse cannot succeed. please fix.
    Any idea how to fix this? The cdt and kgg files are on dropbox at:

    and


    Thanks!

    EDIT: Alternatively, if anyone has any clustering/heatmapping software that they're happy with for exploring data, I'm certainly open to switching
    Last edited by rflrob; 06-07-2013, 03:07 PM.

  • #2
    Not sure if this is what happened in your case, but I had this problem today (which is how I found your post) - turns out that some of my arrays had the same id (that is, biological replicates had the same id). I created unique IDs for each array and it worked.

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