01-07-2013 10:16 AM
Hello everyone. I had this problem something about three weeks ago:
http://forums.ni.com/t5/LabVIEW/Wavefrom-graph-time-from-csv/td-p/2256754
and solved it by changing the delimiter to a comma decimal delimitter with the format %,;%.2f
But this problem occurs again suddenly!.
I have attached the VI and the .csv file as a ZIP format
01-07-2013 11:39 AM
Please do a little simple troubleshooting. You have an array indicator on the front panel. What is the delta between the times of the first row and the second row? Do you really want the first row?
01-07-2013 03:17 PM
The first row is zero in the array indicator, yes, but where do that zero value come from ?. My data in the .csv file shows exactly 0.84 as the first time value ?
01-07-2013 03:25 PM
It most certainly does not show 0.84 as the value in the first row. Look at the file again. It's pretty evident that the first row has 'Time; Measurement'. How do you think the text 'Time' is being interpreted?
01-07-2013 03:28 PM
Right !
Is there any option in LabVIEW, where i can start to read the time and data from the second row as the first value ?
01-07-2013 03:32 PM
Several ways. One way is to simply change your index array after you get the column. Another is to remove the row right after the Read From Spreadsheet Array with the aptly called Delete From Array function.
Basic stuff. Have you taken the tutorials yet?
01-07-2013 03:43 PM
No, not yet 😞
01-07-2013 04:06 PM
I have deleted "row 0" and the graph is better now, but is still incorrect 😞
01-07-2013 04:43 PM
I don't see the same thing. I have an x axis with 0, .12, .24, .36, etc. That is exactly what I would expect with a dt=.12 (cheich is what is in your file). What do you really want to see?
01-07-2013 04:47 PM
The y-value is 4.7 after 3 seconds in the graph, but it should be 9.31 ?