Cel values help needed

[Tim Turner]

i have a spreadsheet to compare inputed predicted and actual values (football
scores that are predicted against actual results) and return a score. Excel
appears to treat an empty cell as a zero value, how can an empty cell be
flagged as "empty" and prevent the calclation taking place untill a value is
entered.

Any help gratefully accepted

 

[Luke M]

something similar to
=IF(ISBLANK(A1),"",A1-A2)

is probably what you're looking for.

 

[Don Guillett]

=IF(LEN(TRIM(H17))<1,"no","yes")

 

[Don Guillett]

Clarification
=IF(LEN(TRIM(H17))<1,"blank","notblank")

 

[Tim Turner]

Don,
Thanks for the info, have worked this into a solution. It has also led me to
the COUNTBLANK function which is very useful for returning a value if a cell
is empty or has an input. This value can then be used as a logic value for
comparison.