Thanks for the reply...but what I'm looking for is something that will ignore
anything other than a numeric values ISERROR only work for specific errors.
The data I'm using in imported from another database it displays a text
description if the value is none numeric e.g bad input or shutdown.
29-Jan-09 05:30 1.0000 35.344 -34.344
30-Jun-08 08:00 356.0000 29.710 326.290
02-Dec-02 09:50 120.0000 21.236 98.764
28-Nov-02 09:20 280.0000 17.800 262.200
21-Nov-02 17:26 Pt Created 20.579 #VALUE!
#N/A #VALUE! #N/A No Good Data
#N/A #VALUE! #N/A No Good Data
#N/A #VALUE! #N/A No Good Data
I need the speadsheet to ignore the cells with none numeric entries as the
cells are used in calculations for an SPC chart. columns B C and D extract
data from an external database (PI). I think I may need some sort of macro
to do this?