Bug - Log scale for line charts

[OBaldan]

I'm using a line chart and want to set both axes in log scale. It works when I only add data to Axis and Values, but once I add data to the Legend, the Y-axis can only be set to linear.

[v-haibl-msft]

@OBaldan

What do your data and visual like? I tried with following simple sample and I can set bot axes in log scale.

Best Regards,

Herbert

[OBaldan]

My X-axis is in the range 0-2000, while my Y-axis represents very small numbers (10-2 to 10-8).

I managed to set the scale type as Log (by entering a start value I think), but it doesn't seem to be applied to the graph. (It shows exactly the same whether I select Linear or Log scale).

In general we have experienced issues with small (decimal) scientific numbers, as you can see the automatic scaling doesn't work either.

[OBaldan]

[v-haibl-msft]

@OBaldan

Did you see red underline while you type 1e-7 for starting value in PBI Desktop as below? It seems that it is not supported.

Best Regards,

Herbert

[OBaldan]

Just saw it. It seems the "1e-x" is supported, as I typed 1e-6 and now the scale is in Log, however, if I go down to 1e-7, then it goes back to linear.

[v-haibl-msft]

@OBaldan

Not sure if “1e-x” is officially supported if there is red underline. How about the result if you type some other “1e-x” values? And if possible, could you please provide you PBIX file to me? You can upload it to online file service like OneDrive and share it to me.

Best Regards,

Herbert

[v-haibl-msft]

@OBaldan

Thanks for your file. I’ve reported it internally to Power BI Team: CRI 30831767

I’ll post here once I get any update about it.

Best Regards,

Herbert

[v-haibl-msft]

@OBaldan

The Power BI Team are working on it. It isn’t a simple bug fix and will take a couple weeks.

Best Regards,

Herbert