eigenvector different result with minitab

[bimooo]

hay, may I ask a question bout my program ? in this case, the result of comparing eigenvectors value have a random plus/min. sometimes, the different appear in random coloumn.

[GerdW]

Hi bimoo,

round your LabVIEW results to 3 decimal places as this "minitab" does and you get the same numbers…

(Or provide an example VI instead of just an image!)

[bimooo]

i don't know what you mean. can you give me an example ? and this is the result with different number.

[mikeporter]

Your LabVIEW data is showing at least one additional decimal place of precision. Limit the data display to 3 decimal places and you will see the same results.

Also when someone asks you to post your code instead of a picture, its poor form to post another picture without comment.

Mike...

[bimooo]

i understand my problem, then how to limit (0.456041 +0 i) in 3 digit decimal ?

[mikeporter]

If you right click on a numeric control or indicator there is an option for setting the Display Format. The default format is 6 significant digits. Change the Digits input to 3, and the Precision Type control to Digits of Precision.

Mike...

[GerdW]

Hi bimoo,

to give advice on LabVIEW basics: right-click the indicator and choose "display settings"… (Or similar menu entry as I use mainly the German LabVIEW version.)

[bimooo]

okay, thank you for help.

[bimooo]

hello, i have problem with complex number. i try to get eigenvector number, but when i compare the result in graph different with other similliar software. i think the problem come from complex number. and my question how to change complex number in rounding decimal integer?

my number eigenvector  result in labview  have positive and negative number. is it because of eigenvector in labview or complex number ? because i think i have already done the correct procedure.

[mikeporter]

Based on the results you showed, there is no problem here. The calculated results are exactly the same. We went through this witg you before. The apparent differences are due to the way the displays are rounded.

To prove it to yourself (again!) apply the same "fix" as you did for your last non-poblem.

Mike...