how to make function that return struct vector whose elements are days of month

2015 6 1
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更新时间：2016 8 5
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Hi every one; I am going to attempt that query: a function called May2015 that returns a struct vector (row or column) whose elements correspond to the days of May, 2015. Each struct should contain three fields with these (exact) field names: “month”, “date”, and “day” (all lower case). • The month field must contain the string 'May' (uppercase ‘M’). • The date field must contain a scalar of type double that equals the date (1 through 31). • The day field must contain the three-letter abbreviation of the day chosen from this list: 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'. For example, here is a call of the function followed by a command that shows the eleventh element of the struct array that is returned by the function:
>> m = May2015;
>> m(11)
ans =
month: 'May'
date: 11
day: 'Mon'
I am using that code
function M=May2015(a)
M=strut('month','May','date',a)
end
I have no idea how i can set the day like mon,tues,wed,thus,fri sat,sun, corresponding date no. May month start from 1 to 30 and the day on 1 was mon and of 30 was tues. Kindly guide me how can i mange day (string) with date. I think i have to use for loop but not idea.. Thanks in advance

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Guillaume
Guillaume 2015-6-1
Is this homework? If so, can you add 'homework' as a tag?
Yaser Alghawi
Yaser Alghawi 2016-8-5
how to write the name of month also(for example 2 as input will give an output of February)

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 采纳的回答

Augusto Oliveira
Augusto Oliveira 2015-6-1

0 个投票

It's m = May2015, not m = May2015(n)... i = 1:31

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Augusto Oliveira
Augusto Oliveira 2015-6-1
编辑：Augusto Oliveira 2015-6-1
function m = May2015
for i = 1:31
[DateNumber, DateName] = weekday(datenum([2015 5 i]));
m(i) = struct('month','May','date',i,'day', DateName);
end
@Augusto thanks for contributions. Why we not set input argument n to May2015??

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更多回答（3 个）

Andrei Bobrov
Andrei Bobrov 2015-6-1
编辑：Andrei Bobrov 2015-6-2

1 个投票

function out = May2015
[~,k] = weekday(datenum(2015, 5, (1:31)'));
out = struct('month','May','date',num2cell((1:31)'),'day',cellstr(k));
use:
>> m = May2015
m =
31x1 struct array containing the fields:
month
date
day
>> m(11)
ans =
scalar structure containing the fields:
month = May
date = 11
day = Mon
>>

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@Andrei thanks for contributions.. i use that code
function out = May2015(n)
[~,k] = weekday(datenum([2015 5 n]));
out = struct('month','May','date',n,'day',k);
end
and in testing getting that error
Your solution is _not_ correct.
Titus Edelhofer
Titus Edelhofer 2015-6-1
Muhammad, the answer of Andrei is not missing a lot. If you want to have a struct array, you can either use looping on Andrei's solution, i.e.,
for i=1:length(n)
out(i) = struct('month', 'May', 'date', n(i), 'day', k(i));
end
or use cell arrays for initialization
nc = num2cell(n);
out = struct( ...
'month', 'May', ...
'date', nc, ...
'day', k);
Titus
@Titus i am revolving around the question.but not finding the solution??

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