Spotfire Ideas Portal
When you have a line from column values plotting on a chart, if you change the axis to a log scale, the data from column values is not logged, rather it just won't show up on the plot. In order to get it to plot on the log scale you have to create a second column that is the log value of that data. There should be a way to apply the log transformation to the line from column values.
Here is a visual example, this would open up a lot of functionality that is currently not available. Adding the ability to limit the lines and curves express by for example [Store]='WalMart' adds an additional functionality. Currently to add a line from column values you have to create a new data table with only the desired rows of data (requires TERR, Python, or very creative filtering I suppose...).