Write a function called valid_date that takes three positive integer scalar inputs year, month, day. If these three represent a valid date, return a logical true, otherwise false. The name of the output argument is valid.

Hi

i am getting valid_date (2018,4,1) output=1

and valid_date (2018,4,31) output=0

but i am getting error in

Assessment result: incorrect The last day of every month. Variable valid has an incorrect value

valid_date(2017,9,31) failed.........

Kindly point out the errors I have made!

function valid = valid_date(year, month, date)
if(nargin ~= 3)
    valid = false;
elseif ((~isscalar(year)||(mod(year,1)~=0) || year<0))
    valid = false;
elseif ((~isscalar(month))||(mod(month,1)~=0) || (month<=0) || (month>12))
    valid = false;
elseif ((~isscalar(date))||(mod(date,1)~=0) || (date<=0))
    valid = false;
elseif(any(month==[1:2:7,8:2:12])&& date>31)
    valid = false;
elseif (any(month==[4,6,9,11]) && date>30)
    valid = false;
elseif month==2 && date>(28+(mod(year,400)==0 || (mod(year,100)~=0 && mod(year,4)==0)))
    valid=false;    
else
    valid = true;    
end

[Stephen23]

These outputs look correct to me:

>> valid_date(2017,4,1)
ans =
     1
>> valid_date(2017,4,31)
ans =
     0
>> valid_date(2017,9,30)
ans =
     1
>> valid_date(2017,9,31)
ans =
     0

Your code looks okay, what specific dates are failing the test?

[chaitanya lengure]

they are using ramdom input

[Guillaume]

This homework again!

You may want to check the previous questions on this exact same homework:

469201 - write a function called valid date ...

469457 - write a function called valid date...

498288 - how to write a function to determine if a date entered is valid

445601 - can anyone poin out the mistake ...

502849 - how can i create a function ...

and many more...

[Muzaffar Bashir Arain]

this porgrame works fine i just made simple correction/ addition of end in the last that probabiliy missing... cheers

Answer 1

[Jon]

I verified that your program correctly returns that valid_date(2017,9,31) is false.

It looks like you are using some kind of test script to see if your program is working properly. Maybe there is a problem with this test script, because your program seems to work OK.

[chaitanya lengure]

i know that for input (2017,9,31)

output is false {0}

but tset script is not accepting the answer