Cody

# Problem 42458. Determine the mean of matrix

Solution 2676752

Submitted on 10 Jul 2020
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### Test Suite

Test Status Code Input and Output
1   Pass
filetext = fileread('mean_matrix.m'); assert(isempty(strfind(filetext, 'mean(')),'mean forbidden') assert(isempty(strfind(filetext, 'mean (')),'mean forbidden') assert(isempty(strfind(filetext, '...')),'... forbidden')

2   Fail
x=1; y=1; assert(isequal(mean_matrix(x),y));

Argument to dynamic structure reference must evaluate to a valid field name. Error in mean_matrix (line 2) y = (sum.(x))/length(x); Error in Test2 (line 3) assert(isequal(mean_matrix(x),y));

3   Fail
x = [5 4 8;4 7 8;5 7 8]; y=6.2222; assert(abs(mean_matrix(x)-y)<0.0001);

Argument to dynamic structure reference must evaluate to a valid field name. Error in mean_matrix (line 2) y = (sum.(x))/length(x); Error in Test3 (line 3) assert(abs(mean_matrix(x)-y)<0.0001);