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Excel offers many user interface tweaks over the earliest electronic spreadsheets; however, the essence remains the same as in the original spreadsheet software, VisiCalc: the program displays cells organized in rows and columns, and each cell may contain data or a formula, with relative or absolute references to other cells. Excel 2.0 for ...
A column may contain text values, numbers, or even pointers to files in the operating system. [2] Columns typically contain simple types, though some relational database systems allow columns to contain more complex data types, such as whole documents, images, or even video clips. [3] [better source needed] A column can also be called an attribute.
Missing not at random (MNAR) (also known as nonignorable nonresponse) is data that is neither MAR nor MCAR (i.e. the value of the variable that's missing is related to the reason it's missing). [5] To extend the previous example, this would occur if men failed to fill in a depression survey because of their level of depression.
View the full headers to find out where an email was delayed or if the real sender disguised their email address. View the full header of an email. 1. Click an email to open it. 2. Click the More drop-down in the top menu. 3. Select View Message Source. Use header info to investigate problems. See where an email was delayed
Keep headings short. You can sum up almost any subject in 10 words. Thus: "Housing boom in the early 1990s", not "Housing boom in the early 1990s lasts for only a few years". Long headings, as in this example, tend to reveal the storyline. The goal of a heading is to invite readers to read the section and find out what happened.
When used in conjunction with the table element, it specifies the amount of space between the border of a table cell and its contents. [ 1 ] [ 2 ] Cellpadding is an attribute of an individual cell in a table, so each cell in a table can be assigned its own cellpadding value, [ 3 ] if not assigned however, the default value for cellpadding is 1 .
The Library of Congress adds new headings and revisions to LCSH each month. [6] A web service was set up by Ed Summers, a Library of Congress employee, circa April 2008, [7] using SKOS to allow for simple browsing of the subject headings. lcsh.info was shut down by the Library of Congress's order on December 18, 2008. [8]
"Commodified Internet spaces are always profit-oriented, but the goods they provide are not necessarily exchange-value and market-oriented; in some cases (such as Google, Yahoo, MySpace, YouTube, Netscape), free goods or platforms are provided as gifts in order to drive up the number of users so that high advertisement rates can be charged in ...