good mornning please i have an error in this programm , can any one help me please i need that urgent

v4=[];

for j=0:1:63
   for h=0:0.1:3
      pnd=0:0.1:1 ;
      n=2:2:16;
      % if(n>=2)
      v4=[v4;sum((sum( pnnd(j))) ,h)+n]
   end     
end

        #
this is the error msg  : 
#  
Error in ==> Ency at 9
v4=[v4;sum((sum( pnnd(j))) ,h)+n]
#

[EDITED, Jan, Code formatted]

[safi marwa]

1. v4=[];

for j=0:1:63 for h=0:0.1:3 pnd=0:0.1:1 ; n=2:2:16; % if(n>=2) v4=[v4;sum((sum( pnnd(j))) ,h)+n] end

end

        #

[John D'Errico]

No. You gave us only part of the error message. What was the ENTIRE message? The part where MATLAB tells you what it did not like?

[safi marwa]

Error in ==> Ency at 9 v4=[v4;sum((sum( pnnd(j))) ,h)+n] just that i have

[Image Analyst]

Please copy and paste ALL THE RED TEXT THAT YOU SEE IN THE COMMAND WINDOW. You are not doing that because we know what it typically looks like and that is not it. You didn't show any error message, no traceback, etc. For example if I try this:

pnnd = randi(9, 1, 12) % Create sample data.
v4=[];

for j=0:1:63
   for h=0:0.1:3
      pnd=0:0.1:1 ;
      n=2:2:16;
      % if(n>=2)
      v4=[v4;sum((sum( pnnd(j))) ,h)+n]
   end     
end

I get this:

>> test3
pnnd =
     5     6     7     7     3     7     6     2     2     5     9     4
Attempted to access pnnd(0); index must be a positive integer or logical.
Error in test3 (line 9)
      v4=[v4;sum((sum( pnnd(j))) ,h)+n]

Which is not what you say you get. Did you see my answer below?

[safi marwa]

ah okkk this is all the msg excuse me ??? Attempted to access pnnd(0); index must be a positive integer or logical.

Error in ==> Ency at 9 v4=[v4;sum((sum( pnnd(j))) ,h)+n]

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/29922-why-your-question-is-not-urgent-or-an-emergency

Answer 1

[Image Analyst]

sum() does not take a second argument that is 0 or a fraction like 0, .1, .2, .3, etc. Why are you passing h into sum()? And why are you summing a single number like pnnd(j)? The sum of that is simply its value, pnnd(j).

[Jan]

There are the terms "pnnd" and "pnd". Perhaps there is a confusion also?

[Image Analyst]

Yes. Good catch.

[safi marwa]

j'ai utilisé ce code maintenant

1. pnnd = randi(9, 1, 12) % Create sample data. v4=[]; for j=1:1:63 for h=1:0.1:3 % pnd=0:0.1:1 ; n=2:2:16; % if(n>=2) v4 =[v4;sum((sum( pnnd(j))) ,h)+n] end end # the error msg now : pnnd =

     7     3     9     1     4     4     7     8     2     5     5     6

v4 =

     9    11    13    15    17    19    21    23

??? Error using ==> sum Dimension argument must be a positive integer scalar within indexing range.

Error in ==> pppp at 8 v4 =[v4;sum((sum( pnnd(j))) ,h)+n]

[Image Analyst]

Like I said, sum() does not take a fractional number for an input. And what is the difference between pnd and pnnd?

[safi marwa]

ah oki its an error all is pnnd or all pnd , please what that mean : ??? Attempted to access pnnd(13); index out of bounds because numel(pnnd)=12.

Error in ==> pppp at 8 v4 =[v4;sum((sum( pnnd(j))) ,h)+n]

[Image Analyst]

pnnd has only 12 elements. So why are you trying to access the 13th element? Plus, like I've already said, that h won't work. sum() will not take an input of 1.1 for the dimension that you want to sum along.

Answer 2

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_fix_the_error_.22Subscript_indices_must_either_be_real_positive_integers_or_logicals..22.3F

You don't start arrays with an index of 0. They start with 1 in MATLAB.