How can I have proper alignment in my output?

clc; clear;
% Asking for file name input.
filename = input('Enter the filename to process: ','s'); %filename = '2018-January-Averages.txt';

% Opening file and reading.
fid = fopen(filename,'rt');

% Getting headers.
DUID = string( strsplit( fgetl(fid), ',') );

% Storing data of daily averages.
dailyAverages =  textscan(fid, '%s%s%s%s', 'Delimiter', ',','collectoutput',1);
dailyAverages = dailyAverages{:,:};

% Getting size of cell array.
[nr, nc] = size(dailyAverages);

% Used to keep track of how many non-numerical inputs there are.
nonNumerical = zeros(nc,2);

% 2 For loops to analyze each cell in the cell array.
for c = 1:nc
    n = 0;
    for r = 1:nr
        % If daily average is non-numerical, n increases in value by 1
        if nnz(isstrprop(dailyAverages{r,c}, 'digit')) == 0
            % If daily average is non-numerical, it is changed to 0 so
            % cell array can be changed to matrix later on for algebraic
            % functions.
            dailyAverages{r,c} = ['0']; %#ok<NBRAK>
            n = n + 1;
        end
        % Each daily average is changed to a double, so cell array can e
        % changed to matrix later on for algebraic functions.
        dailyAverages{r,c} = str2double(dailyAverages{r,c});
        % Used to check if a daily average is negative.
        if dailyAverages{r,c} < 0
            %If it is negative, it is changed to 0, because output requires
            % values above 0.
            dailyAverages{r,c} = [0]; %#ok<NBRAK>
        end
    end
    % Used to store how many non-numerical inputs there are in each column
    % (under each header).
    nonNumerical(c,2) = n;
end

% Converting cell array to matrix for algebraic functions.
dailyAverages = cell2mat(dailyAverages);

% Total number of inputs is 31. The number of non-numerical inputs in each
% column is substracted to get number of numerical inputs in each column
% (under each header).
numericDailyAverages = zeros(1,nc);
for c = 1:nc
    numericDailyAverages(1,c) = nr - nonNumerical(c,2);
end

% Basic algebraic functions to get desired statistics.
maxDailyAverage = max(dailyAverages);
countDailyAverages = sum(dailyAverages~=0);
averageOfDailyAverages = sum(dailyAverages,1) ./ countDailyAverages;
s = dailyAverages >= averageOfDailyAverages;
dailyAveragesGreaetrThanAverage = sum(s~=0);

% \t is used to agjust spacing, and \n to move to next line.
fprintf('Summary Information for ')
fprintf('%s', filename);
fprintf('\n\t\t\t\t\t\t\t\t')
fprintf('\t%s\t', DUID);

% nr = length of dailyAverages
if nr == 0
    fprintf('Error: file contains no numeric data');
else
    fprintf('\nNumeric Daily Averages\t\t\t\t')
    fprintf('%.2f\t\t',numericDailyAverages);
    fprintf('\nMaximum Daily Average\t\t\t\t')
    fprintf('%.2f\t\t', maxDailyAverage);
    fprintf('\nDaily Averages > 0\t\t\t\t\t')

    fprintf('%.2f\t\t', countDailyAverages);
    fprintf('\nAverage of Daily Averages > 0\t\t')
    fprintf('%.2f\t\t',averageOfDailyAverages);
    fprintf('\nDaily Averages > Average\t\t\t')
    fprintf('%.2f\t\t', dailyAveragesGreaetrThanAverage);
    fprintf('\n');
end

Answer 1

[Chunru]

Try something like this to align the text:

fprintf('%-30s', 'Numeric Daily Averages:'); fprintf('%10.2f ', rand(1,4)); fprintf('\n');

Numeric Daily Averages:             0.23       0.02       0.67       0.63 

fprintf('%-30s', 'Maximum Daily Average:'); fprintf('%10.2f ', rand(1,4)); fprintf('\n');

Maximum Daily Average:              0.61       0.95       0.25       0.72 

Answer 2

[Syed Ashtar Hussain Shah]

I actually solved it myself some days ago. You only need to change the number of \t in fprintf to align the output.

[Chunru]

Hi. The use of \t may be very fragile and is difficult to adjust if you change some strings. Use it with caution.