Crystal 8.5 (Minimum function in the function tree does not appear to work)

Question

HI I would greatly appreciate some help with this problem I am having.
I am creating a report in which there is a group of records printed . Within each record there could be any number of results related to that record of which I want to extract both the maximium and minimum value and print these. This bit is fine as I do this using the maximum and minimum function available within the summary function.
However with each of these max and min values calculated and printed I then want to create a footer that adds all these max and min values up. (This is not immediately possible using the 'summary function' max and min values as they are not presented on the 'Field explorer' dialog box for selection.
However I can individually using the maximum 'tree function' get the report to store these values so that I can do the calculations once I have got to the footer (as the  fields defined are accessible through the field explorer. But the same minimum function does not appear to extract a result (and no I do not have zeros in the data).
Is there a known problem with the minimum function?
Is there another way of getting this data?
Thank you in advance
seyviv

Answer 1

Hi Debi, it would be easier for mean to demonstrate what I wnat/am doing in the report by use of data.
I have a file with a list of sample results. There may be many results for one sample. ie
Sample      Result Number      Result
98-01          1                           3
98-01          2                           5
98-01          3                           6
98-02          1                           3
98-02          2                           7
98-02          3                           9
98-03          1                           4
98-03          2                           5
98-03          3                           11
On the first page I want to see the max and min values across all samples listed for each result number. Then as a total value (once all the result numbers max and mins are displayed I want to perform a calculation on the max and min values displayed in the list (ie. max 4 + 7 -11  and for min 3 + 5 - 6)  
                      Result 
                      Number        Max           MIn 
                      1                    4                3
                      2                    7                5
                      3                    11              6
Result of                             0                2
Calculation
I have been able to do this for the max values but the minimum function does not work.
How I currently extract this data is that I use a 'Summary field ' to calculate the max and min values in the list. However to get the data for the calculation at the bottom I use the 'Formula fields' to extract the values listed for all the results for 'result number 1, 2 & 3' and then use the 'Function tree' to get the 'Maximum value for each individual result number and then finally do a calculation on the max values. However, the same minimum function does not appear to work.
I hope this explains what my problem is.
Thank you in advance of any suggestions you may have
Regards
Viv