How do I Run the below program? The sample program sums various column vectors. How do I Modify the first of the program (i.e., ignore the xsum2part) to calculate averages.

x=[1;2;7;5;9;3;6;9;1;11;1];

xsum=sum(x);

xsum1=0;

for i=1:11

xsum1=xsum1 + x(i,1);

end

disp xsum;

disp(xsum);

disp xsum1;

disp(xsum1);

xsum2=0;

for i=1:11

if x(i,1)> 4

xsum2=xsum2 + x(i,1);

end

2

end

disp xsum2

disp(xsum2);

[Mathieu NOE]

hello

why not using mean with the correct dimensions

help mean

mean Average or mean value.

S = mean(X) is the mean value of the elements in X if X is a vector.

For matrices, S is a row vector containing the mean value of each

column.

For N-D arrays, S is the mean value of the elements along the first

array dimension whose size does not equal 1.

mean(X,'all') is the mean of all elements in X.

mean(X,DIM) takes the mean along the dimension DIM of X.

mean(X,VECDIM) operates on the dimensions specified in the vector

VECDIM. For example, mean(X,[1 2]) operates on the elements contained

in the first and second dimensions of X.

Answer 1

[Prince Kumar]

You can use "mean" function to find the average. Please have a look at the code below :

x=[1;2;7;5;9;3;6;9;1;11;1];
avg = mean(x);
disp(avg);

Please refer the document for information : mean