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

Question

Muhammad Usman Saleem 2015-6-1

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https://ww2.mathworks.cn/matlabcentral/answers/221846-how-to-make-function-that-return-struct-vector-whose-elements-are-days-of-month

评论： Yaser Alghawi 2016-8-5

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 2015-6-1

Is this homework? If so, can you add 'homework' as a tag?

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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Answer 1

Augusto Oliveira 2015-6-1

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

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Augusto Oliveira 2015-6-1

编辑：Augusto Oliveira 2015-6-1

在 MATLAB Online 中打开

function m = May2015
for i = 1:31
    [DateNumber, DateName] = weekday(datenum([2015 5 i]));
    m(i) = struct('month','May','date',i,'day', DateName);
end

Muhammad Usman Saleem 2015-6-2

@Augusto thanks for contributions. Why we not set input argument n to May2015??

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Answer 2

Andrei Bobrov 2015-6-1

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/221846-how-to-make-function-that-return-struct-vector-whose-elements-are-days-of-month#answer_181178

编辑：Andrei Bobrov 2015-6-2

在 MATLAB Online 中打开

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
>>