Null Data Affects the Grid?

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SyifaSukri
SyifaSukri Posts: 3
in Oasis montaj

Hi everyone,

Some columns in my dataset have null values of 999999.99. I am trying to grid these columns, and they look odd. The 'background' where no acquisition lines are available, appear in single color. While the areas with lines are shaded in a different color. Could the null values be the culprit of this issue? If yes, how do I exclude them from the grid? What needs to be changed to get color contour?

Thank you.

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  • LauraQuigley
    LauraQuigley Posts: 3 mod
    edited July 24

    Hi there,

    In Oasis montaj a dummy value is recognized as an * . You can use channel math to change all 999999.99 values to dummies (*) . Here is an example of such an expression to do this: this is an expression that looks in the channel Mag_copy for any field equal to 999999.99 and creates a new channel, Mag_clean, with all * where there were 999999.99.

    image.png

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