Plot Multi-XY Picture trouble

[Neilelph]

Hi.

  I've got a small app that reads data from a database and displays it using the Plot Multi-XY VI. For some reason I am getting negative looking data points that dip down to 'oblivion' appearing on the output Picture.

I've attached a screenshot of what I mean, and I've also attached the zipped up code.

Anyone shed any light on this?

Cheers.

  Neil.

[Dennis_Knutson]

Have you probed the results of the db query and looked to see what you are getting back? It looks like there might be some data that is getting interpreted as -inf or NaN. If you want someone to look at the data and to try and re-create the problem, you need to create an indicator at the output of your db read, run the program, select Make Current Values Default, save the VI, and re-post it. 

p.s. Probably not related to your problem but you really want to clean up your wiring. If there ever is a problem in the logic of your program, it's hard to follow with wires going up/down/back/forth/over/under.

[Neilelph]

Thanks for the reply.

You were right. There were some "NaN" appearing in my data. Not too sure why, because the database data if fine, but at least I can filter for these now.

Ta.