> Hi, Iam new in labview. I measured amplitude from my DMM connected > through GPIB. I also measured is freq result. How can i plot a graph > of amplitude against freq plot?(something like a freq response plot). > I do not know how to change the the x-axis of the waveform provided in > labview into freq. Thank You.
If you are plotting an array of amplitudes sampled at various frequencies to a waveform graph, you are pretty close. The scale will default to being labeled by index -- first amplitude plotted against zero, second against one, etc. You can programmatically or interactively add a linear transform from index to displayed number. In otherwords, you define an M and B to define what zero maps to, what one maps to, etc. And you can also use the labeling tool to change the scale label to read frequency or whatever you like. If your frequencies aren't in a linear progression, or if you just think it is simpler, use an XY graph instead, and put the frequency with each amplitude in a cluster. Make an array of these XY paired clusters. Then change the scale label. Greg McKaskle
