changine if-elseif to a switch-case structure

Question

Mike 2013-10-30

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编辑： John Kelly 2017-11-10

rewrite the following code segment containing an if-elseif using a switch-case structure instead of the if-elseif. The code should not contain any ifs and should employ minimum number of disp commands. assume a is always a positive number

if a<60
  disp('f)
elseif a<70
  disp('d')
else 
  disp('good job')

my attempt was a=input(' ') switch a case a<60 disp('f') case a>= 60 & a<70 disp('d') otherwise disp('edit you') end

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dpb 2013-10-30

在 MATLAB Online 中打开

Homework needs an honest attempt first -- post your work and a specific question...meanwhile, there's always

doc switch

with and example to get you kick-started...

Mike 2013-10-30

编辑：John Kelly 2017-11-10

a=input(' ') switch a case a<60 disp('f') case a>= 60 & a<70 disp('d') otherwise disp('edit you') end

my attempt.. please help got an exam soon

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Answer 1

sixwwwwww 2013-10-31

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在 MATLAB Online 中打开

Dear Mike, You can convert if-else code to switch case structure as follows:

InputValue = input('Input value: ');
val = sum(InputValue < [70 60]);
switch val
    case 2
        disp('f')
    case 1
        disp('d')
    otherwise
        disp('Good job')
end

I hope it helps. Good luck!

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sixwwwwww 2013-10-31

You are welcome

Sabri Çetin 2016-6-22

Can you generalize your answer for arbitrary conditions?

There is an obvious generalization by using several switch statements, but you did this with only one switch statement, but your answer somehow depends on the condition.

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