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Tables can only be sorted vertically by clicking on the column headers (topmost cells). When a column header is clicked, the rows of the table reorder themselves in an up-and-down manner, based on the values in that column. However, there is no functionality to sort columns horizontally by clicking on a cell in the leftmost row.
There is no easy way to align a column of numbers so that the decimal points align. See multiple ways below. One way to align columns of numbers at the decimal point is to use two columns, with the first right-justified and the second left-justified.
For complex tables, when a header spans two columns or rows, use ! scope="colgroup" colspan="2" | or ! scope="rowgroup" rowspan="2" | respectively to clearly identify the header as a column header of two columns or a row header of two rows.
Edit-tricks are most useful when multiple tables must be changed, then the time needed to develop complex edit-patterns can be applied to each table. For each table, insert an alpha-prefix on each column (making each row-token "|-" to sort as column zero, like prefix "Row124col00"), then sort into a new file, and then de-prefix the column entries.
To clearly define relationships and avoid accessibility issues, use ! scope="colgroup" colspan="2" | when a column header spans two columns and ! scope="rowgroup" rowspan="2" | when a row header spans two rows, adjusting the number if spanning more.
In a table column (or other presentation) in which all values can be expressed with a single power of 10, consider giving e.g. × 10 7 once in the column header, and omitting it in the individual entries. (Markup: {{e|7}}) In both notations, the number of digits indicates the precision.
Exercise physiologist Jesse Hickerson, left, and nurse Deborah Kuntz keep track of David Brookfield's vitals while performing a stress test at the McConnell Heart Health Center in Columbus, Ohio.
Nominal variables for example gender have no order between them and are thus nominal. Ordinal variables are categories with an order, for sample recording the age group someone falls into. [53] Quantitative: Represent measurements, such as the height of a person or the temperature of an environment.