function his = read_HIS_records(file,beginning_index,ending_index)
%
%       function his = read_HIS_records(file,beginning_index,ending_index)
%
%   ....This Matlab function using 'read_HIS_record.m' to read a sequence
%       of HIS records.
%
%       Input:
%         file - filename of HIS data file
%         beginning_index - Beginning HIS record index
%         ending_index    - Ending HIS record index
%
%       Output:
%         his - array of structures containing HIS data
%
%         CAUTION:  One cannot perform the same type of 
%                   Matlab manipulations on an array of
%                   structures as on a simple array.  For
%                   instance, mean(his.rad) will NOT 
%                   return the mean radiance as a function
%                   of wavenumber.  Here is a piece of 
%                   code that will average HIS radiances
%                   in an array of structures:
%
%                      his = read_HIS_records('data.ume',1,10);
%                      radiance = [];
%                      for k = 1:length(his),
%                         radiance = [radiance; his(k).rad];
%                      end
%                      mrad = mean(radiance);
%                      clear radiance
%
%       Written by Von P. Walden
%                  18 May 1998
%                  28 May 1998 (Added comment on how to handle
%                               data within an array of structures.)
%

his = read_HIS_record(file,beginning_index);

l = 2;
for k = beginning_index+1:ending_index
   his(l) = read_HIS_record(file,k);
   l = l + 1;
end