Form of .dat files

The .dat files are used for writting out data that one will subsequentially want to plot out. The format for .dat files is given below. All input statements assume free format (i. e. FMT = *) except for the labels which have FMT = "(a)".

Data format

  1. For k from 1 to R
    1. label
    2. M
      • If M > 0 then
        1. For i equal 1 to M
          1. Val_x(i), Val_y(i)
      • Else if M < 0
        1. For i equal 1 to ABS(M)
          1. N(i)
        2. IF N(1) = -3 then (this dataset has 3-D vectors at each point)
          1. For i from 1 to ABS(M)-1
            1. (Coord(j, i), j = 1, N(i+1))
          2. ((...(((Val(1:3,i1, i2, ..., iM), i1 = 1, N(2)), i2 = 1, N(3))) ...), iM = 1, N(ABS(M)))
          Else
          1. For i from 1 to ABS(M)
            1. (Coord(j, i), j = 1, N(i))
          2. ((...(((Val(i1, i2, ..., iM), i1 = 1, N(1)), i2 = 1, N(2))) ...), iM = 1, N(ABS(M)))

Data variables

R
integer, the number of data records
label
character, one input line which is the label for this record, without quotes
M
integer, the number of 2-D points (M > 0) or minus the number of dimensions (M < 0). For more than 3-D and higher data, the data is assumed to be on a regular mesh
Val_x(i)
real, the x coordinates of 2-D data
Val_y(i)
real, the y values of 2-D data
N(i)
integer, the number of coordinate values in each dimension, if N(1) = -3 then the dataset has 3-D vector quantities at each point
Coord(j, i)
real, the j'th value of the i'th coordinate
Val(i1, i2, ..., iM)
the value of the function at (Coord(i1, 1), Coord(i2, 2), ... , Coord(iM, ABS(M)))