Internet Vision Software
Index : Common Attributes : MissingData Attribute

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Quick Reference...

Attribute Name
MissingData
Type Integer (0..5)
Summary: Determines what happens to data falling above and / or below the limit lines.

Description:

The MissingData attribute applies to the graph types line, scatter and tape. It sets the mode for flagging which data values should be excluded from the graph. Missing data points are not displayed and are ignored in the calculation of the scale of the axis and any superimposed statistical or trends lines.

With the default setting (0), missing data may be individually flagged using the ExtraData array. Also excluded are any log data below the value 1E-50, as these values are too small to be shown on a graph.

The default operation applies with all settings. Any points flagged as a result of comparison with the LimitLowValue and LimitHighValue are in addition to those individually flagged in the ExtraData array or omitted as being too small to render in a log graph. While values must be assigned to LimitLowValue and LimitHighValue, it is not necessary for limit lines actually to be displayed.

Value Missing Data Function
0 Use ExtraData array only (Default)
1 Exclude zero data
2 Exclude data below LimitLowValue
3 Exclude data above LimitHighValue
4 Exclude data below LimitLowValue or above LimitHighValue
5 Exclude data above LimitLowValue and below LimitHighValue


Remarks:

None.

Example...

<CFXGRAPHICSSERVER ... MissingData="1" ... >

This would cause the graph to ignore all '0' data.

Copyright 1999 Internet Vision Software Limited