Table Of Contents

Graph ► Tutorials ► Enter Data

There are two main ways to enter data which are explained in this section.

With the Tables interface you can select a row, a column or a cell and paste data. You can also select the entire table and paste in data. The data format is defined by the task type and is specified in the particular task section.

By way of example, the figure below shows a column chart table being edited. The cells are formatted as single numbers (scalars). The figure shows the cell editor when clicked on the fourth column (the third scalar column), fourth row. Clicking the Return key dismisses the editor and updates the graph. The data is automatically saved. There is so little to do that this tutorial is short and mostly a referral to other sections of this manual.

With the Fetch tool you can acquire data from a file or a web server (SOA facility). Fetching occurs one column at a time and the fetched URL contents are the same as pasted column data. In the case of a column chart, a list of numbers delimited by a space. Here are a few ideas when using Fetching:

• The URL may refer to a static file, which is easy enough. However, it may also refer to a CGI facility on a web server in which case the column number can be encoded into the URL and parsed by the CGI facility in the normal way.

• You can easily turn on web sharing on your Mac and drop in a PERL or PHP script to program the data content. That way the data access refers to an algorithm and not specifically numerical data, although ultimately numeric data is the result of the fetch.

• Of course, the URL facilities can use any SOA service. See XML Fetch for more information.

The ultimate facility for entering data is your own program. For that see the Vvidget Code Reference Manual.