aga_rpt.m

function aga_rpt(p,t,s,ttle)
%AGA_RPT - Produces the final figure and results for the Agarwal model
%                
% Syntax: aga_rpt(p,t,s,ttle )
%
%   p(1) = a  = slope of the late time straight line
%   p(2) = t0 = intersept of late time straight line
%   p(3) = sg = sigma, coefficient de skin
%   t = measured time
%   s = measured drawdown
%   ttle = Title of the figure 
%
% Description:
%   Produces the final figure and results for the Agarwal model (1970).
%
% See also: aga_dmo, aga_pre, aga_gss, aga_dim
%


global AGA_RW AGA_RC AGA_R AGA_Q

if(  isempty(AGA_RW) ) 
    disp(' ERROR: aga_rpt: You must run AGA_PRE before using the grf model')
    return;
end
rw=AGA_RW;
rc=AGA_RC;
r=AGA_R;
q=AGA_Q;
if(nargin<4) % Default value for ttle if not given by user
  ttle='Diagnostic plot';
end

% Rename the parameters for a more intuitive check of the formulas
rw=AGA_RW; rc=AGA_RC; r=AGA_R; q=AGA_Q;
a=p(1); t0=p(2); sg=p(3);

T=0.1832339*q/a;     % Computes the transmissivity
S=2.25*T*t0/r.^2;    % Computes the Storativity
Cd=rc.^2/2/rw.^2/S;  % Computes wellbore coefficient
rd=r/rw;             % Computes dimensionless radius rd

% Calls a internal script to compute drawdown, derivative, and residuals
func='aga'; rpt_cmp

% Defines the text of the left side of the legend 
lgdl=char('Test data:');
lgdl=char(lgdl, sprintf(' Discharge rate: %3.2e m^3/s',q));
lgdl=char(lgdl, sprintf(' Well radius: %0.2g m',rw));
lgdl=char(lgdl, sprintf(' Casing radius: %0.2g m',rc));
lgdl=char(lgdl, 'Hydraulic parameters:');
lgdl=char(lgdl, sprintf(' Transmissivity T: %3.1e m^2/s',T));
lgdl=char(lgdl, sprintf(' Storativity S: %3.1e m',S));
lgdl=char(lgdl, sprintf(' Wellbore storage C_D: %3.1e',Cd));
lgdl=char(lgdl, sprintf(' Skin factor s_g: %3.1e',sg));

% Defines the text of the right side of the legend 
lgdr=char('Agarwal (1970) model');
lgdr=char(lgdr, 'Fitting parameters:');
lgdr=char(lgdr, sprintf(' slope a: %0.2g m',a));
lgdr=char(lgdr, sprintf(' intercept t0: %0.2g m',t0));
lgdr=char(lgdr, sprintf(' mean residual: %0.2g m',mr));
lgdr=char(lgdr, sprintf(' 2 standard deviation: %0.2g m',sr));

% Calls an internal script that place the legend
rpt_lgd

% Calls an internal script that plot the model and the data
rpt_plt