Garbage Data


Occasionally HAR files may contain invalid numerical data which ViewHAR cannot handle. Probably this means that the file was corrupted, but it might also mean that uninitialized arrays were written to the file (ie, not all values of the array were set before it was written to file). Or perhaps some numbers were produced by invalid numerical operations (3/0, log(-2), sqrt(-5), etc).

When ViewHAR reads such values from disk, it converts them to the magic number

"424242.0"

and issues a warning. You should examine the matrix values, perhaps using the ViewHAR Search command (look for "424242") to locate the problem.

Unless you explicitly save the file, ViewHAR does not alter the disk copy of the file - it only converts the garbage values in its own in-memory copy of the data.



URL of this topic: www.copsmodels.com/webhelp/viewhar/hc_garbage.htm

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