Leaderboard

That's not enough information to say anything specific. Error 66 simply means that the remote side decided to close the connection. That could be for many reasons such as: - Bad network setup that causes dropouts - DHCP configuration that causes a change of the network address so that the connection is not valid anymore and gets reset by the remote side - subnet address configuration mismatches - another network device trying to grab the network address used by either side of your current connection and a few dozen more possible problems including bad hardware in your computer, the remote device or some network infrastructure in between

Looking more closely at your data snippet. Since the left column has 2 data points very close together (certainly within measurement noise) you could have 2 lines/curves which maybe max/min. You might get that sort of file, for example, if you want to test the linearity of analogue output device with a 110v supply and a 240v supply. You may set an output, measure at 110V then change the supply to 240v and take another measurement before moving on to the next analogue output level. Anyway. the analysis method is the same, you just need to de-interleave to get the two lines/curves and maybe subtract one from the other before doing the poly fit. Later.... Ah yes. Makes more sense now when you said "pairs of rows" and why you want a poly. Polyfit2.vi For some reason the decimate arrays crashes LV so I had to use a while loop.