Step 6 |
  
|
Step 6 |
|
Export the data using the Export data command. Files created this way are simple text files with columns of the obtained x- and y-values. They should have the extension *.xy. These files can be re-imported by most applications from W.Theiss Hard- and Software and others like Microsoft Excel. However, you can also use the Drag&Drop method described below to copy the data to other applications of W.Theiss Hard- and Software.
Note, however, that all W.Theiss Hard- and Software objects that require data sets with equidistant x-values (such as all fitting objects) interpolate the non-equidistant input data to an equal number of equidistant data points - hence the number of your input data points should be large enough to ensure a reasonable sampling even on equidistant 'x-grids'.
To examine your results you can also get a graphical view of the digitized data. Press the Show button and a second window opens showing the data:
Besides looking at the data, you can use this window also for data export in several formats and also for data manipulation.
In the line following Y(X,Y)= you can type in a formula (refer to the present y-values using the symbol 'Y' in the formula). Pressing the Go! button is followed by a re-computation of the data based on the formula. For example, the formula string 'log(y)' leads to the calculation of the logarithm (base 10) of the y-data:
The formula editor as well as the handling of the graphics in this window is well-known to experienced W.Theiss Hard- and Software customers. The formula editor is described in the help of the program Data Factory that is shipped with Digit to registered users, the graphics handling is described in the helpfile graphics.hlp (also shipped with Digit).
Using the 'Export' submenu you can export the data to a file or to the clipboard. Alternatively you can write the data to the built-in workbook (using the Workbook submenu). Once the data are in the workbook you can copy&paste data blocks to other applications or write the whole workbook to an Excel file.
That's all for this simple, manual method to collect data points!
Click here if you think you are ready to learn about the more automatic and elegant way to digitize curves.