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    1: \label{Spreadsheet_Functions}
    2: The following functions are available in the spreadsheet:
    3: 
    4: \begin{itemize}
    5: 
    6: \item \texttt{\&NUM(range)} - number of non-empty cells in range
    7: \index{NUM}
    8: 
    9: \item \texttt{\&BIN(low, high, range)} - number of non-empty cells in
   10:   range with values between low and high
   11: \index{BIN}
   12: 
   13: \item \texttt{\&SUM(range)} - sum of the non-empty cells in range
   14: \index{SUM}
   15: 
   16: \item \texttt{\&MEAN(range)} - mean value of non-empty cells in range
   17: \index{MEAN}
   18: 
   19: \item \texttt{\&STDDEV(range)} - standard deviation of non-empty cells
   20:   in range 
   21: \index{STDDEV}
   22: 
   23: \item \texttt{\&PROD(range)} - product of non-empty cells in range
   24: \index{PROD}
   25: 
   26: \item \texttt{\&MAX(range)} - maximum value of non-empty cell in range
   27: \index{MAX}
   28: 
   29: \item \texttt{\&MIN(range)} - minimum value of non-empty cells in
   30:   range 
   31: \index{MIN}
   32: 
   33: \item \texttt{\&SUMMAX(n ,range)} - sum of the maximum n non-empty
   34:   cells in range
   35: \index{SUMMAX}
   36: 
   37: \item \texttt{\&SUMMIN(n, range)} - sum of the minimum n non-empty
   38:   cells in range
   39: \index{SUMMIN}
   40: 
   41: \item \texttt{\&EXT(expression)} - access to EXT function in lonnet
   42: \index{EXT}
   43: 
   44: \end{itemize}
   45: 
   46: In addition, non-IO Perl functions work in cells, which is internally
   47: evaluated within a safe space. Field names and Column-Row combinations
   48: can be used as variables.