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Dear GWB community,

I would like to plot SI for mineral saturation, rather than (Q/K).  My GSS spreadsheet is showing log (Q/K), but when I do an XY plot with "mineral saturation", Gtplot always uses (Q/K) rather than log (Q/K).  If I switch the scale to log, it does not transform the data, only the axis scale.

How can I plot SI (log (Q/K)) directly for mineral saturation using Gtplot?

I found a work-around by copy/pasting the log (Q/K) column calculated by GSS into a new user-defined analyte, but it would be better if SI could be plotted directly.

Thank you for your time and consideration.

Andy

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Hi Andy,

There is currently no way to plot the logarithm of an arbitrary variable in the XY plots. To work around this (besides making user-defined analytes), you can copy the values from GSS or your plot into Excel (taking the logs as necessary) and plot the data there. I can discuss this idea with the development team for consideration in a future release, but we can’t make any promises about implementation.

Regards,

Brian Farrell
Aqueous Solutions LLC 
 

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