# Pass Contents of Cell Arrays to Functions

These examples show several ways to pass data from a cell array to a MATLAB® function that does not recognize cell arrays as inputs.

### Pass Contents of Single Cell by Indexing with Curly Braces, `{}`

This example creates a cell array that contains text and a 20-by-2 array of random numbers.

```randCell = {'Random Data', rand(20,2)}; plot(randCell{1,2}) title(randCell{1,1})``` Plot only the first column of data by indexing further into the content (multilevel indexing).

```figure plot(randCell{1,2}(:,1)) title('First Column of Data')``` ### Combine Numeric Data from Multiple Cells Using `cell2mat`

This example creates a 5-by-2 cell array that stores temperature data for three cities, and plots the temperatures for each city by date.

```temperature(1,:) = {'2020-01-01', [45, 49, 0]}; temperature(2,:) = {'2020-04-03', [54, 68, 21]}; temperature(3,:) = {'2020-06-20', [72, 85, 53]}; temperature(4,:) = {'2020-09-15', [63, 81, 56]}; temperature(5,:) = {'2020-12-31', [38, 54, 18]}; allTemps = cell2mat(temperature(:,2)); dates = datetime(temperature(:,1)); plot(dates, allTemps)``` ### Pass Contents of Multiple Cells as Comma Separated List To Function

This example plots `X` against `Y` , and applies line styles from a 2-by-3 cell array `C`.

```X = -pi:pi/10:pi; Y = tan(sin(X)) - sin(tan(X)); C(:,1) = {'LineWidth'; 2}; C(:,2) = {'MarkerEdgeColor'; 'k'}; C(:,3) = {'MarkerFaceColor'; 'g'}; plot(X, Y, '--rs', C{:})``` 