MATLAB: Function to format number as currency

currencyformatjavaMATLABnumberformat

I would like to format the number as a $xxx,xxx,xxx.xx currency, what is the easiest way to do this?

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Or using java:

% Formatting according to locale

j = java.text.NumberFormat.getCurrencyInstance();
j.format(1000.3243)

% Different currency

curr = java.util.Locale.US;
j = java.text.NumberFormat.getCurrencyInstance(curr);
j.format(1000.3243)

For a list of java.util.Locale.*: http://docs.oracle.com/javase/1.3/docs/api/java/util/Locale.html

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MATLAB: How can turn cells to string

It is my understanding that you would like to use "switch-case" instead of "if-else" to avoid verbose statements. I am not able to figure out a straightforward way to use "switch-case", but the code may be simplified by implementing the string matching part inside a function. For example, define:

function str = stringMatching(cellarray, dvalue)
% "stringList" and "outputList" must be of the same size
stringList = {'pass', 'C2C', 'C2C TO'};    % A list of strings that need to be matched
outputList = {'Passive', 'C2C', 'C to C'}; % The output of the corresponding string in "stringList"
str = '';                                  % Initialize output
stringInCell = cellarray(:, 1);            % put the strings in one cell array
% Use "ind" for the output of "cell2mat(a(:, 2)) == d(i)" in the original code
ind = (cell2mat(cellarray(:, 2)) == dvalue);
% The following loop tests if strings in "stringList" have any match in "cellarray"
% This loop replaces the multiple "if" statements in the original code.
for i = 1 : numel(stringList)              % Iterate through all the elements in "stringList"
      % Use "ismember" instead of "strcmp" to test if the string can be found in "cellarray"
      if (ismember(stringList{i}, stringInCell(ind))
          str = outputList{i};
          break;
      end
  end

Please note that "ismember" is used instead of "strcmp". You can refer to the following documentation for more information on "ismember":

http://www.mathworks.com/help/matlab/ref/ismember.html

In addition, I use "stringList" to store all the strings that needs to be found in the cell array, and "outputList" to specify the corresponding output strings. Therefore, if you need to match more strings, only "stringList" and "outputList" need to be changed.

With the above function, you may rewrite the "for" loop as follows:

for i = 1 : length(d)
    str = stringMatching(a, d(i));
    if ~isempty(str)
       fprintf('It''s a %s\n', str);
    end
end

MATLAB: How to display text in a plot as scientific number

Use a format string to create specific format desired...

>> sprintf('%.2e',pi*1E6)
ans =
    '3.14e+06'

ergo, use

text(x,y,sprintf('%.2e',valueToPrint))

There's also num2str, compose that have some additional flexibility for specific uses...

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MATLAB: How can turn cells to string

MATLAB: How to display text in a plot as scientific number

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