write a code using MATLAB to calculate recall and precision and then plot a graph on these values.

R=[10,7,3,2,5,1,8,6,4,9]
R =
    10     7     3     2     5     1     8     6     4     9
V=[1,2,10]
V =
     1     2    10
intersection (R,V)
??? Undefined function or method 'intersection' for input arguments of type 'double'.
intersect (R,V)
ans =
     1     2    10
[s index]= intersect(R,V)
s =
     1     2    10
index =
     6     4     1
% run a loop 3 times
size(index,2)
ans =
     3
length(index)
ans =
     3

[James Tursa]

It isn't clear what you want done or what you are having problems with. Please read this:

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer