Message Boards Message Boards

Avoid "has evaluated to non-numerical values for all sampling points in"?

GROUPS:

I have the following code which gives an error message "NIntegrate::inumr: The integrand (E^(-(([Pi] r^2)/1000000)-1.58489*10^-10 r^2.09) [Pi] r laplaceTBLAB[r] laplaceTBNAB[r] laplaceTBTB[r])/500000 has evaluated to non-numerical values for all sampling points in the region with boundaries {{0,10000}}."

parmtrTB[r_] := sinr/zetaTB*r^alfaTB;
funTBNAB[z_, 
   r_] := (1 - 
     1/(1 + parmtrTB[r]*zetaNAB*(z^2 + height^2)^(-alfaNAB/2)))*
   funNLoS[z];
      funTBLAB[z_, 
   r_] := (1 - (mparameter/(mparameter + 
          parmtrTB[r]*zetaLAB*(z^2 + height^2)^(-alfaLAB/2)))^
      mparameter)*funLoS[z];
      funTBTB[z_, r_] := 
  z*(1 - 1/(1 + parmtrTB[r]*zetaTB*z^(-alfaTB)));



distnceTBLAB = (zetaTB/zetaLAB)^(1/alfaTB)*height^(alfaLAB/alfaTB);
distnceTBNAB = (zetaTB/zetaNAB)^(1/alfaTB)*height^(alfaNAB/alfaTB);

NearstInterfcTBLAB[r_] := 
 Piecewise[{{height, 
    r <= distnceTBLAB}, {(zetaLAB/zetaTB)^(1/alfaLAB)*
     r^(alfaTB/alfaLAB), r > distnceTBLAB}}]; 
NearstInterfcTBNAB[r_] := 
 Piecewise[{{height, 
    r <= distnceTBNAB}, {(zetaNAB/zetaTB)^(1/alfaNAB)*
     r^(alfaTB/alfaNAB), r > distnceTBNAB}}];
NearstInterfcTBTB[r_] := r;

       lowerlimitTBNAB[r_] := Sqrt[NearstInterfcTBNAB[r]^2 - height^2];
lowerlimitTBLAB[r_] := Sqrt[NearstInterfcTBLAB[r]^2 - height^2];
       lowerlimitTBTB[r_] := NearstInterfcTBTB[r];


InteglaplaceTBNAB[r_?NumericQ] := 
  NIntegrate[
   funTBNAB[z, r], {z, lowerlimitTBNAB[r], lowerlimitTBLAB[Rmax]}];
InteglaplaceTBLAB[r_?NumericQ] := 
  NIntegrate[
   funTBLAB[z, r], {z, lowerlimitTBLAB[r], lowerlimitTBLAB[Rmax]}];
InteglaplaceTBTB[r_?NumericQ] := 
  NIntegrate[funTBTB[z, r], {z, lowerlimitTBTB[r], Rmax}];

laplaceTBNAB[r_] := Exp[-2*Pi*ABdensity*laplaceTBNAB[r]];
laplaceTBLAB[r_] := Exp[-2*Pi*ABdensity*laplaceTBLAB[r]];
laplaceTBTB[r_] := Exp[-2*Pi*TBdensity*laplaceTBTB[r]];
laplaceTB[r_] := laplaceTBNAB[r]*laplaceTBLAB[r]*laplaceTBTB[r];
xxTB1[r_] := Exp[-parmtrTB[r]*noisepow]*laplaceTB[r]*funPdfTB[r];

xxTB2 := NIntegrate[xxTB1[r], {r, 0, Rmax}];
POSTED BY: mohamed alzenad
Answer
12 days ago

Parameters are not defined. Can you publish the code with all the data for the parameters?

POSTED BY: Alexander Trounev
Answer
12 days ago

I see many errors here. When using Mathematica, you should test each function before using it as a building block. For example, try typing laplaceTBNAB[1].

You've done an excellent job of factoring the problem, so this approach to debugging should be very effective.

POSTED BY: John Doty
Answer
11 days ago

Group Abstract Group Abstract