Select column to show in a graph/card

[IanAguila]

Good afternoon.

I'm quite new to PBI, then I need some help to do one thing:

I have a system that measures temperature and humidity and records it into a .txt file, separating columns by "tab".

But I want to make possible that the user can select the temperature unit.

I have, originally, on the .txt, a column with temperatures in Celsius, and made two other ones, where the PBI will calculate the respective values in Kelvin and Fahrenheit units.

I want to show it into a graph, and also show the maximum, minimum and average values in a day, but for it I want to use a combo box, where the user will select the temperature unit. 

And there is my problem: How can I select a column to show into something, depending on the selection of the user?

I'll send some prints for you to understand it better:

In this last print, I only want to show one of these columns, selected by the user. How can I do it?

[mahoneypat]

To do this, you can use the approach described in this article.

https://www.fourmoo.com/2017/11/21/power-bi-using-a-slicer-to-show-different-measures/

Also, you don't need to make calculated columns for Kelvin and Farenheit.  You can just have a measure for each.  For example,

Farenheit Temp = [Celsius Temp] * 9/5 + 32

Where [Celsius Temp] is the measure on your Celsius temp column (e.g., AVERAGE(Table[TemperaturaCelsius]).  If each data point on the chart is a single value, the aggregation won't matter (max, min, sum, average).

You can then have a SWITCH measure that returns the result of one of the measures (Celsius, Kelvin, Farenheit).

If this works for you, please mark it as the solution.  Kudos are appreciated too.  Please let me know if not.

Regards,

Pat

[IanAguila]

Thank you for the incredibly quick answer. I've thought about using measures, but I really don't know how.

When I've tried it, the measure was only using average/sum values, and I don't want it. I want all the values to be plotted. I not even know how to properly create a measure.

The switch function I also don't know how to use.

Can you help me with it?

[mahoneypat · Accepted solution]

This video also walks through it, and this is a YouTube channel (Curbal) that a lot of people starting out get a lot from.  Please see this video and the earlier ones to get started.

https://www.youtube.com/watch?v=gYbGNeYD4OY

If this works for you, please mark it as the solution.  Kudos are appreciated too.  Please let me know if not.

Regards,

Pat