Changes between Initial version and Version 2 of Ticket #247


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Timestamp:
2011-09-14T09:14:34Z (13 years ago)
Author:
Ian Culverwell
Comment:

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  • Ticket #247

    • Property Owner set to Ian Culverwell
    • Property Status new → assigned

  • Ticket #247 – Description

    initial v2  
    1 At present there is no check that an injested covariance matrix has the right size for the problem in hand. Because of the way covariance matrices are stored in ROPP (in a "triangular" format), a matrix appropriate to a bigger problem can be read in OK, without crashing and with 1s in the right place (think about it).  So it would be subtly wrong - the worst kind of error.
     1At present there is no check that an ingested covariance matrix has the right size for the problem in hand. Because of the way covariance matrices are stored in ROPP (in a "triangular" format), a matrix appropriate to a bigger problem can be read in OK, without crashing and with 1s in the right place (think about it).  So it would be subtly wrong - the worst kind of error.
    22
    33At least one user has fallen over with this.  So we should put a check in to stop it happening.