[HEADER,DATA] = VECREAD(FILENAME,HEADLINE,COLUMNS) will read the 
FILENAME file (with or without .vec extension), with HEADLINE, number 
of header lines, usually 1, and COLUMNS, number of columns in the file, 
usually 5. HEADER is a string and DATA is a 3D matrix as described below. 
 
[DATA] = VECREAD(FILENAME) Reads the FILENAME.VEC to the DATA 3D matrix 
as described below, and default values for HEADLINE = 1, COLUMNS = 5 
(Usual 2D .vec file) are used. 
 
DATA(:,:,1)=X, DATA(:,:,2)=Y, DATA(:,:,3)=U, DATA(:,:,4)=V, DATA(:,;,5)=CHC. 
(See Insight manual for more info) 
 
  example: 
   [h,d] = vecread('tmp.vec',1,5); 
   quivervec(d); 
   title(h); 
 

READEXPDIR QUIVERVEC 
  Published output in the Help browser 
     showdemo readvec