I am getting error in this program. Please suggest the corrections.

% for constant doc
c = [1 2 2 3 4 5 6 7];
r1 = [1.9981 3.9966 7.9922 15.9863 31.5551 63.7318 102.771];
r2 = [1.9988 3.9966 7.9806 15.9111 31.9588 63.5392 128.4018];
r3 = [1.9989 3.9979 7.9958 15.9843 31.9694 63.9415 143.27];
plot(c,r1,'--bo',c,r2,'--ro',c,r3,'--go');
xlabel('Classes');
ylabel('max rrate');
title('graph b/w classes & max rrate');
legend('premonsoon','postmonsoon','monsoon');

[Adam]

If you are getting an error please include the full error text in the question so we don't have to guess what it is.

[Kartik Lanjewar]

Answer 1

[Star Strider]

First, save the function as ‘graph_prog.m’ (note underscore). If I remember correctly, MATLAB .m file names cannot include spaces. (That may have changed, however I never include spaces in my .m file names, so I’ve not tested it.)

% for constant doc
c = [1 2 3 4 5 6 7];
r1 = [1.9981 3.9966 7.9922 15.9863 31.5551 63.7318 102.771];
r2 = [1.9988 3.9966 7.9806 15.9111 31.9588 63.5392 128.4018];
r3 = [1.9989 3.9979 7.9958 15.9843 31.9694 63.9415 143.27];
plot(c,r1,'--bo',c,r2,'--ro',c,r3,'--go');
xlabel('Classes');
ylabel('max rrate');
title('graph b/w classes & max rrate');
legend('premonsoon','postmonsoon','monsoon', 'Location','best');

After removing the duplicated 2 in ‘c’ it works. (Duplicates are allowed, however with the duplicate, the vector lengths did not match.)

.

Answer 2

[Alan Stevens]

Change

c = [1 2 2 3 4 5 6 7];

to

c = [1 2 3 4 5 6 7];