Write a function called integerize that takes as its input a matrix A of integer

Question

Write a function called integerize that takes as its input a matrix A of integers of type
double, and returns the name of the “smallest” signed integer class to which A can be
converted without loss of information. If no such class exists, the text 'NONE' is returned. For
example, if the smallest element of A is -100 and the largest is +100, then the function would
return 'int8'. As another example, if there is an element of A equal to -1e20, then the
function would return 'NONE'.

My code is

function returnType=integerize(A)

%Define value

returnType = 'none';

%Find maxMatVal

maxMatVal=max(A(:));

%Check Condition

if maxMatVal <= intmax('int8')

%Set Value.

returnType='int8';

%Check Condition

elseif maxMatVal<=intmax('int16')

%Set Value

returnType='int16';

%Check condition.

elseif maxMatVal <= intmax('int32')

%Set Value.

returnType='int32';

%Check Condition.

elseif maxMatVal <= intmax('int64')

%Set Value.

returnType='int64';

%Else

else

%Set Value

returnType='NONE';

%End

end

%End

end

result

Problem 1 (integerize):
Feedback: Your function performed correctly for argument(s) 0
Feedback: Your function performed correctly for argument(s) 1
Feedback: Your function performed correctly for argument(s) -1
Feedback: Your function performed correctly for argument(s) -127
Feedback: Your function performed correctly for argument(s) -128
Feedback: Your function performed correctly for argument(s) 126
Feedback: Your function performed correctly for argument(s) 127
Feedback: Your function performed correctly for argument(s) 128
Feedback: Your function made an error for argument(s) [-1 0 23 -129 122]

Your solution is _not_ correct.

Explanation / Answer

function returnType=integerize(A)

%Define value

returnType = 'none';

%Find maxMatVal

maxMatVal=max(A(:));

%Check Condition

if maxMatVal <= intmax('int8')

%Set Value.

returnType='int8';

%Check Condition

elseif maxMatVal<=intmax('int16')

%Set Value

returnType='int16';

%Check condition.

elseif maxMatVal <= intmax('int32')

%Set Value.

returnType='int32';

%Check Condition.

elseif maxMatVal <= intmax('int64')

%Set Value.

returnType='int64';

%Else

else

%Set Value

returnType='NONE';

%End

end

%End

end

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