Question

Write a function in matlab for these parameters

(char) A string representing 7 days of the week (eg. 'N M T W R F S') (double) A vector representing 7 dates of the week (eg. [4 5 6 8 79 10]) (double) A positive or negative number of days (char) A string representing 7 days of the new week (double) A vector representing 7 dates of the new week circshift() It's fairly simple to determine what the date was or will be in a certain number of days. However, it's a little more challenging to figure out what day of the week that new date corresponds to. Thankfully we have MATLAB to depend on for this task. Write a function that takes in an input string that represents the current days of the week ('N' = Sunday, 'R' = Thursday) and a vector that represents the current dates of that week. The function will also take in a third input that represents the number of days into the future or past we are shifting the weekly calendar. Using this information, your function should be able to determine the new vector of dates for the new week, in addition to the correct order of days that correspond to these new dates. You should also be able to account for whether the dates go into a new month. Given: days = 'M T W R F S N' dates = [24 25 26 27 28 29 30] shift = 5 And that the function is called: >> [newDays, newDantes] = weeklyCalendar (days, dates, shift) Then the outputs would be: newDays = 'S N M T W R F' newDates = [29 30 1 2 3 4 5]

Answer 1

MATLAB Function:

function [nDays, nDates] = weeklyCalendar(days, dates, shift)
    # Function that determines the date in a certain number of days
  
    # Extracting only days of week (excluding spaces)
    tDays = days(1:2:end);
  
    # New days string
    nDays = "";
  
    # New dates
    nDates = dates;
  
    # Iterating over days of week
    for i = 1:7
  
        # Circular shifting dates
      
        # If month end reached
        if dates(i)+shift > 30
          
            # Move to month starting and adding number of dates
            nDates(i) = dates(i) + shift - 30;
        
        else
      
            # Adding number of dates
            nDates(i) = dates(i) + shift;
      
        endif
      
      
        # Circular shifting days
      
        # If week end is reached
        if i+shift > 7
          
            # Update from week starting
            nDays = [nDays ' ' tDays(i+shift-7)];
        
        else
      
            # Updating days
            nDays = [nDays ' ' tDays(i+shift)];
      
        endif
  
    endfor

endfunction

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Sample Output:

null