error when sum a vector

hello, I want to sum a vector but I have this error

      probabilite= [0.165575031104594 0.158621930989492 0.160414724735035 0.159513234647443     0.159438658281726];
      somme=sum( probabilite)

error :

       Subscript indices must either be real positive integers or logicals.

       Error in Untitled (line 6)
       somme=sum( probabilite)

please help me, how can correct this error?

Answer 1

[Purushottama Rao]

It did not gave any error in my pc.

>> probabilite= [0.165575031104594 0.158621930989492 0.160414724735035 0.159513234647443     0.159438658281726];
      somme=sum( probabilite)

somme =

      0.8036

[Sahar abdalah]

I don't know what is the problem , but for me does not work and the same error exists

[Purushottama Rao]

can you send the full code. I think error is referring something else in your code

[Sahar abdalah]

I closed matlaband I open it again and it works now thank you

[Jos (10584)]

Good luck closing and re-opening matlab all the time! :-)

Answer 2

[Jos (10584)]

Most likely you have declared a variable called sum, which now clashes with the function sum

In your case, you then want to index the 0.165575031104594th and other values of the variable array sum, which is nonsense, of course, causing MatLab to throw an error.

What does

whos ('sum')

return?

However, these bugs can be nasty and not so easy to spot:

sum = [1 2 3]
p = [2 3]
answer = sum(p)

Lesson to be learned : do not name your variable after a function, but be more descriptive, using names like sumA or sumData.

(btw the solution is to clear the variable sum, which shouldn't have been created by you in the first place)