sarproz-group

An error when plot parameter in APS processing

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    • #1731
      cnuhyl
      Participant

      Hi,

      In APS processing,I plot parameter after choose reference point but there is an error saied that:
      inverti_dif: error with ichol

      An error occurred and was saved in the file lasterror_ichol.mat, directory C:\pcodes

      If you need assistance, please include the file lasterror_ichol.mat

      You may include also file 12_Jun_2016_11_25_10_sarproz.log

      Here a glimpse:

      主元为负数。

      trying with cholinc

      inverti_dif: error with cholinc

      An error occurred and was saved in the file lasterror_cholinc.mat, directory C:\pcodes

      If you need assistance, please include the file lasterror_cholinc.mat

      Why?

      Thank you very much!

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    • #1733
      periz
      Keymaster

      this may happen when your graph is broken (not connected) either because of a bad graph topology or because low coherence isolate a portion of the graph.
      In the first case you have to re-generate the graph making sure it is connected.
      In the second case, you have to change the non-linear weights in order not to isolate any areas. In this second case consider anyway that the “unlucky area” probably will not be consistent with the rest of the analyzed points…

      • #1734
        cnuhyl
        Participant

        Thank you very much. I changed the non-linear weights and it worked.

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