This app lets you play around with Shiny's improved renderTable() function. All arguments are intially set to their default values (the code chunk under the table illustrates this by omitting the arguments if they are set to their default value). A few noteworthy points:

• The first three datasets are actual datasets found in the datasets package. The last one (mock) provides you with different classes of variables (like strings and booleans), 'stringy' rownames and a few missing values to test the inputs with.

• width can take in any valid CSS unit of length. If a unit (like 'px', '%', 'em') is not specified, then 'px' is assumed.

• If align is set to NULL, then all numeric/integer columns (including the row names, if they are numbers) will be right-aligned and everything else will be left-aligned (align = '?' produces the same result). You can also specify a global alignment that will apply to all columns; for example, align = 'c' makes all columns centered. For finer control, you can also specify the alignment for each column, with the i-th character specifying the alignment for the i-th column (remember to include the alignment for the row names if the argument rownames is set to TRUE). In this case, besides 'l', 'c' and 'r', '?' is also permitted - '?' is a placeholder for that particular column, indicating that it should keep its default alignment.

• digits specifies the number the decimal places for the numeric columns (notice that this will not apply to columns with an integer class). If digits is set to a negative value, then the numeric columns will be displayed in scientific format with a precision of abs(digits) digits.