Wayne, actually, I'm not sure but I think that factoric - or factorial is the denomination that R uses to say that somthing is rather a text than a numeric number - I'm pretty new to R.
But, anyway, we solved the problem but in a lillte bit of an awkward way.
The problem is that the minus sugns in numbers is percieved as dashes in R
(http://www.R-project.org, a free-ware statistical analysis program)
So where there is a numeric input with a minus sign R thinks it is a letter rather than a number.
We solved it by exporting the numbers file to CSV, opened it in text editor, copied the suspisios minus sign and pasted it into the search field to find all dashes/minus sign that didn't work and replaced them with a minus sign. After this operation, nothing different could be seen in the text but R saw the difference.
So this makes it difficult to explain by posting a screenshot - it looks the same but it isn't.
The funny thing is that the dashes that numbers use when to express a date are percieved as minus signs by R.
Can anyone understand what I tried to explain? And if so, is there a simpler way to do this? We have a lot of minus signs to export to R.....
best regard
Joachim