function    vardef=var_def;
%%  definitions of variables saved in the output file

blankline='      ';

%% kriging results
var1='Cg: Matrix of Gridded Kriging Varible';
var2='Eg: Matrix of Gridded Kriging Error';
var3='Xg: X-Coordinate Matrix for gridded kriging and kriging error map';
var4='Yg: Y-Coordinate Matrix for gridded kriging and kriging error map';
var_sum1a='    To plot kriging map, use ';
var_sum1b='          ''pcolor(Xg,Yg,Cg''  or ''pcolor(Xg,Yg,Eg)'' ';
vardef_k={var1;var2;var3;var4;blankline;var_sum1a;var_sum1b};

%% variogram
var1='lag:  Lag in km for either semi-variogram or correlogram';
var2='gammah: semi-variogram or correlogram';
var3a='model: model index of semi-variogram or correlogram';
var3b='      (semi-variogram if model > 0 and correlogram if model < 0)';
var4a='nugt: nugget in the variogram/correlogram model';
var4b='sill: sill in the variogram/correlogram model';
var4c='L: length scale (range) in the variogram/correlogram model';
var4d='b: length scale of hole effect in the variogram/correlogram model';
var4e='p: power in the variogram/correlogram model';
var4f='  (for general-exponetial-Bessel model only)';
vardef_v={blankline;var1;var2;var3a;var3b;var4a;var4b;var4c;var4d;var4e};

%% data
var1='Lat_long: flag of units: 1: Long/Lat  0: km';
var2a='(xs,ys): position coordinates.';
var2b='         in degree if Lat_long = 1 and in km if Lat_long = 0';
var3='var_obs: observed or measured data';
var4='var_est: predicted value at observation locations';
var5a='TransformStatus:  1: data are transformed';
var5b='                  2: data are not transformed';
var6a='TransformInd: index of data transformation';
var6b='             1: log(z), 2=log(z=1), etc';
vardef_d={blankline;var1;var2a;var2b;var3;var4;var5a;var5b;var6a;var6b};

%%
var1='S: variance of (var_obs-var_est)';
var2='clr_max: maximum value of colormap';
var3='markersize: markersize for poltting the observations';

vardef_o={blankline;var1;var2;var3};

vardef=[vardef_v;vardef_k;vardef_d;vardef_o];
