Cody

# Problem 1576. Mean and standard deviation of times in string

Solution 1903588

Submitted on 18 Aug 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = {'45.5','1:04.8','55.4'}; y_correct = '55.2'; z_correct = '9.7' [a,b]=mean_std(x); assert(isequal(a,y_correct)&isequal(b,z_correct))

z_correct = '9.7' m = '55.2' s = duration 9.6511 sec

Error using duration/isequal (line 787) Unable to convert the text '9.7' to a duration value because its format was not recognized. Error in Test1 (line 5) assert(isequal(a,y_correct)&isequal(b,z_correct))

2   Fail
x = {'1:38.4','2:12.9','2:00.6'}; y_correct = '1:57.3'; z_correct = '17.5'; [a,b]=mean_std(x); assert(isequal(a,y_correct)&isequal(b,z_correct))

ans = 1 s = duration 17.485 sec

Output argument "m" (and maybe others) not assigned during call to "mean_std". Error in Test2 (line 4) [a,b]=mean_std(x);

3   Fail
x = {'10:00.0','5:00.0','3:00.0','1:00.0'}; y_correct = '4:45.0'; z_correct = '3:51.7'; [a,b]=mean_std(x); assert(isequal(a,y_correct)&isequal(b,z_correct))

ans = 4 s = duration 231.73 sec

Output argument "m" (and maybe others) not assigned during call to "mean_std". Error in Test3 (line 4) [a,b]=mean_std(x);

4   Fail
x = {'1:01.1','2:02.2','3:03.3','4:04.4'}; y_correct = '2:32.8'; z_correct = '1:18.9'; [a,b]=mean_std(x); assert(isequal(a,y_correct)&isequal(b,z_correct))

ans = 2 s = duration 78.88 sec

Output argument "m" (and maybe others) not assigned during call to "mean_std". Error in Test4 (line 4) [a,b]=mean_std(x);

5   Fail
x = {'50.7','1:02.3','59.4','57.3','1:00.4'}; y_correct = '58.0'; z_correct = '4.5'; [a,b]=mean_std(x); assert(isequal(a,y_correct)&isequal(b,z_correct))

m = '58.0' s = duration 4.4718 sec

Error using duration/isequal (line 787) Unable to convert the text '4.5' to a duration value because its format was not recognized. Error in Test5 (line 5) assert(isequal(a,y_correct)&isequal(b,z_correct))