sep3dc_read_data - Read the data assoicated with a given window
logic= sep3dc_read_data(char *tag, sep3d *sep3dc, void *data, int nt, int ft, int jt)
file to read the data from
structure
data
number of samples along axis 1
first sample along axis 1
sampling along axis 1
Read in a portion of the dataset
superset