In App Designer, how can I ensure that the values displayed on the UI do not appear in scientific notation?

For example, I have a field called app.Profile.Value. Large numbers are often converted to scientific notation. How do I force all values of this variable to be displayed properly, i.e., 1234, instead of 1.234*10^3?

Answer 1

[Image Analyst]

Where or how are you displaying them? If you're using fprintf or sprintf, use %.3f or %g in your format specifier. If you're just having them echo to the command window, try

> format longg

[Leon]

Many thanks. My app.Profile.Value is supposed to be a numerial value with Limits set by some numbers. If I use fprintf, the results will be a string, am I right?

[Image Analyst]

No, fprintf prints to a file or the command window. sprintf creates a string. I still don't know where you are seeing scientific notation? Are you saying that if you type 1234 into a numerical edit field (in an App Designer GUI) and hit enter, it will instantly and automatically change it to 1.234*10^3 instead???

[Leon]

Apologies for my delayed response.

I see it on the UI interface I build using App Designer. Attached is a screenshot of it. The number is derived from my data internally. In this case, instead of showing an integer of 25172. It shows 2.517e4.

For that same number, I also enable my users to change it by typing in a new number. For that reason, the type of this variable should be numerical, instead of a string.

[Image Analyst]

Change the ValueDisplayFormat string to %.4f instead of %.4g. If you want integers, use %.0f but that will display integers but the underlying number will still be floating point. You can check the RoundFractionalValues if you want the underlying values to also be integers.

[Leon]

It works. Many thanks.