#!F-adobe-helvetica-medium-r-normal--18* #!N #!CSeaGreen #!N #!Rall38 Example 2 #!N #!EC #!N #!N In this example, you will use the initial dialog box to customize the Data Prompter before importing a data file that contains scattered data values for two variables. The organization of the file is: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N x, y, data1, data2 #!N x, y, data1, data2 #!N . . . #!EF #!N #!N #!EC where x, y define the positions (or locations) of the data. (See also "For Future Reference" later in this example.) #!N #!I0 #!N #!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N 1. First, invoke the Data Prompter (as in Example 1, Step 1). When the initial dialog box appears, click on the #!F-adobe-times-bold-r-normal--18* Grid or Scattered File #!EF button for scattered data. Then click on the #!F-adobe-times-bold-r-normal--18* Grid Type #!EF button for scattered data (farthest right). #!N #!I30 #!N 2. Use a stepper button to set #!F-adobe-times-bold-r-normal--18* Number of variables #!EF to "2." #!N #!I30 #!N 3. The data positions are specified in the data file itself, so activate the #!F-adobe-times-bold-r-normal--18* Positions in data file #!EF toggle. #!N #!I30 #!N 4. The data positions are 2-dimensional (x,y), so use a stepper button to set #!F-adobe-times-bold-r-normal--18* Dimension #!EF to "2." #!N #!I30 #!N 5. Verify that the #!F-adobe-times-bold-r-normal--18* Single time step #!EF toggle is activated. #!N #!I30 #!N 6. Set #!F-adobe-times-bold-r-normal--18* Data Organization #!EF to #!F-adobe-times-bold-r-normal--18* Columnar #!EF . #!N #!I30 #!N 7. Click on #!F-adobe-times-bold-r-normal--18* Describe Data #!EF . The simplified prompter window appears. #!N #!I30 #!N 8. Position the mouse cursor in the #!F-adobe-times-bold-r-normal--18* Data file #!EF field at the top left and type in the path name /usr/lpp/dx/samples/tutorial/spreadsheet.data. #!N #!N You can view the file by choosing #!F-adobe-times-bold-r-normal--18* Browser #!EF (as in Example 1). #!N #!I30 #!N 9. There is no header in this file. Set #!F-adobe-times-bold-r-normal--18* # of Points #!EF to "49." #!N #!I30 #!N 10. To save the header file you have defined, select #!F-adobe-times-bold-r-normal--18* Save As... #!EF in the #!F-adobe-times-bold-r-normal--18* File #!EF pull-down menu. Save the file under any name you choose. #!N #!I30 #!N 11. The #!F-adobe-times-bold-r-normal--18* Test Import #!EF and #!F-adobe-times-bold-r-normal--18* Visualize Data #!EF buttons in the initial Data Prompter window are now enabled. Choose #!F-adobe-times-bold-r-normal--18* Visualize Data #!EF to see a visualization of this scattered data. #!N #!I0 #!N #!EF #!N #!N #!N Many other examples of using the General Array format can be found in #!Lgai,dxall110 h General Array Importer #!EL . Data Prompter options are described in #!Lprompt,dxall157 h Data Prompter #!EL . #!CIndianRed #!N #!N #!N #!F-adobe-times-bold-r-normal--18* For Future Reference #!N #!N It is important to note that the top-to-bottom order of items in the #!F-adobe-times-bold-r-normal--18* Field list #!EF (right side of window) is the same as the left-to-right order of items in the data file itself: #!N #!N #!CForestGreen #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-r-normal--18* locations #!EF x, y #!N #!F-adobe-times-bold-r-normal--18* Field0 #!EF data1 #!N #!F-adobe-times-bold-r-normal--18* Field1 #!EF data2 #!N #!F-adobe-times-bold-r-normal--18* ... #!EF #!F-adobe-times-bold-r-normal--18* ... #!EF #!EF #!N #!N #!EC #!N #!N ( "locations" is a General Array reserved word used to indicate when numbers in a data file are to be interpreted as "positions"). #!N #!N The order of the field list can be changed (with the #!F-adobe-times-bold-r-normal--18* Move field #!EF stepper buttons) to agree with the order in the data file. #!N #!N If other information (e.g., descriptive text) is interspersed among the data values, you must use the layout options available in the full Data Prompter (see #!Ldprlayt,dxall168 s Layout #!EL and #!Llaytkwd,dxall149 h layout #!EL ). #!N #!N #!EC #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lall39,dxall40 h A thumbnail Sketch of the Data Prompter Choices #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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