Using Butterworth Filter

[bcalahan]

I have a text file of data...one column or two columns, can be either. One column is the data to filter and the other column is the time it was sampled. The data needs to be put through a butterworth filter. I have tried the Butterworth Filter as well as the Butterworth Filter PtByPt. For the Butterworth Filter, it says I have connected two arrays that mismatch, and for the PtByPt filter, it says that the type of source is 2-D array of single (32-bit real) and the type of sink is 2-D array of double (64-bit real). I input the data using the Read from Spreadsheet File control. Could someone tell me how to put my data through the filter? Thanks for the help.

[Jonnie_5]

How about this example?

If you look inside the Read From Spreadsheet, you'll find it always outputs a Single Representation due to the String->Array Conversion (note that the Format Array is Single). You can of course change this formatting array to Double if need be.

LV 6.1
Assumes Column 1=X=Time
Column 2=Y=Intensity