Table

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Getting a table is not just about what looks good. Make sure to think about the design and shape of the table as well. Different designs have different features, so take some time to consider which type suits you best.

This attribute defines the size of the space between two cells in a percentage value or pixels. The attribute is applied both horizontally and vertically, to the space between the top of the table and the cells of the first row, the left of the table and the first column, the right of the table and the last column and the bottom of the table and the last row.

There are no native methods for sorting the rows ( elements) of an HTML table. But using Array.prototype.slice(), Array.prototype.sort(), Node.removeChild(), and Node.appendChild(), you can implement your own sort() function to sort an HTMLCollection of elements.

A common issue with tables on the web is that they don't natively work very well on small screens when the amount of content is large, and the way to make them scrollable isn't obvious, especially when the markup may come from a CMS and cannot be modified to have a wrapper.

This example provides one way to display tables in small spaces. We've hidden the HTML content as it is very large, and there is nothing remarkable about it. The CSS is more useful to inspect in this example.

When looking at these styles you'll notice that table's display property has been set to block. While this allows scrolling, the table loses some of its integrity, and table cells try to become as small as possible. To mitigate this issue we've set white-space to nowrap on the . However, we don't do this for the to avoid long titles forcing columns to be wider than they need to be to display the data.

To keep the table headers on the page while scrolling down we've set position to sticky on the elements. Note that we have not set border-collapse to collapse, as if we do the header cannot be separated correctly from the rest of the table.

The scope attribute on header elements is redundant in simple contexts, because scope is inferred. However, some assistive technologies may fail to draw correct inferences, so specifying header scope may improve user experiences. In complex tables, scope can be specified to provide necessary information about the cells related to a header.

Assistive technology such as screen readers may have difficulty parsing tables that are so complex that header cells can't be associated in a strictly horizontal or vertical way. This is typically indicated by the presence of the colspan and rowspan attributes.

Ideally, consider alternate ways to present the table's content, including breaking it apart into a collection of smaller, related tables that don't have to rely on using the colspan and rowspan attributes. In addition to helping people who use assistive technology understand the table's content, this may also benefit people with cognitive concerns who may have difficulty understanding the associations the table layout is describing.

Create responsive tables by wrapping any .table with .table-responsive{-sm|-md|-lg|-xl}, making the table scroll horizontally at each max-width breakpoint of up to (but not including) 576px, 768px, 992px, and 1120px, respectively.

Responsive tables allow tables to be scrolled horizontally with ease. Make any table responsive across all viewports by wrapping a .table with .table-responsive. Or, pick a maximum breakpoint with which to have a responsive table up to by using .table-responsive{-sm|-md|-lg|-xl}.

Responsive tables make use of overflow-y: hidden, which clips off any content that goes beyond the bottom or top edges of the table. In particular, this can clip off dropdown menus and other third-party widgets.

table arrays store column-oriented or tabular data, such as columns from a text file or spreadsheet. Tables store each piece of column-oriented data in a variable. Table variables can have different data types and sizes as long as all variables have the same number of rows. Table variables have names, just as the fields of a structure have names. Use the summary function to get information about a table.

To index into a table, use smooth parentheses () to return a subtable or curly braces {} to extract the contents. You can access variables and rows using names. For more information on indexing using numbers and names, see Access Data in Tables.

You can read data from a file into a table using either the Import Tool or the readtable function. Alternatively, use the table function described below to create a table from existing workspace variables.

You also can create a table that allows space for variables whose values are filled in later. To create a table with preallocated space for variables, use the table function with 'Size' as the first input argument, as described below.

If the inputs are workspace variables, then table assigns their names as the variable names in the output table. Otherwise, table assigns variable names of the form 'Var1',...,'VarN', where N is the number of variables.

T = table('Size',sz,'VariableTypes',varTypes) creates a table and preallocates space for the variables that have data types you specify. sz is a two-element numeric array, where sz(1) specifies the number of rows and sz(2) specifies the number of variables. varTypes specifies the data types of the variables.

T = table(___,Name,Value) specifies additional input arguments using one or more name-value pair arguments. For example, you can specify variable names using the 'VariableNames' name-value pair. You can use this syntax with any of the input arguments of the previous syntaxes.

If you specify 'char' as a data type, then table preallocates the corresponding variable as a cell array of character vectors, not as a character array. Best practice is to avoid creating table or timetable variables that are character arrays. When working with text data in a table or a timetable, consider using a string array or a categorical array.

A table contains metadata properties that describe the table and its variables. Access these properties using the syntax tableName.Properties.PropertyName, where PropertyName is the name of a property. For example, you can access the names of the variables in table T using the syntax T.Properties.VariableNames.

Tables provide metadata access through the Properties property because you can access table data directly using dot syntax. For example, if table T has a variable named Var1, then you can access the values in the variable by using the syntax T.Var1.

Row names, specified as a cell array of character vectors or a string array whose elements are nonempty and distinct. If RowNames is not empty, then the number of row names must equal the number of rows in the table.

The variable names are visible when viewing the table and when using the summary function. Furthermore, you can use the variable names within parentheses, within curly braces, or with dot indexing to access table data.

The CustomProperties object is a container for customized metadata that you can add to a table. By default, CustomProperties has zero properties. Each property you add to CustomProperties can contain either table metadata or variable metadata. If a property contains variable metadata, then its value must be an array, and the number of elements in the array must equal the number of table variables. 781b155fdc