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Survo data sets in editorial computing

Any numeric value in a Survo data set (data file, data matrix in the
edit field etc.) can be used in editorial computing by a special DAT function.
For example, if DAT_FINLAND(Helsinki,Popul)=_
is activated, we obtain
                DAT_FINLAND(Helsinki,Popul)=483057

The first argument refers to the name of the observation and the second
one to the variable. Thus in this case we get the number of inhabitants
(Popul) in Helsinki from the data file FINLAND.

DAT function can be used in mathematical expressions. For example,
the population of Helsinki in thousands is given by
DAT_FINLAND(Helsinki,Popul)/1000=483.057

Also values of string variables can be displayed by DAT function. For example,
DAT_FINLAND(Helsinki,Province)=UUS
gives the the name of the Helsinki province. In numerical computations
such values are treated as zeros: DAT_FINLAND(Helsinki,Province)+100=100

If the name of the observation is not the first one in the data set,
it can be referred to by notation Name_of_name_variable>Value.
For example, in FINLAND
DAT_FINLAND(Commune>Helsinki,Popul)=483057
is, of course, the same as DAT_FINLAND(Helsinki,Popul).
The first commune of the UUS province can be found by
DAT_FINLAND(Province>UUS,Commune)=Artjärvi
and its population either by
DAT_FINLAND(Province>UUS,Popul)=2039 or DAT_FINLAND(Artjärvi,Popul)=2039
The order (place) of Helsinki in data FINLAND is obtained by
DAT_FINLAND(Helsinki,ORDER)=47 and observations can also be referred to
by their order. For example, DAT_FINLAND(#47,Commune)=Helsinki

  S = Shorthand notation for functions 
  E = More information on editorial computing 
  D = More information on data sets in Survo 
  X = X function