Handling Digitized Data#

WebPlotDigitizer allows users to export their digitized data and project files for further analysis and sharing. Below are the detailed steps for exporting data and project files:

Exporting Data#

View Data

  1. View Data:

    • Click the "View Data" button on the left sidebar when viewing a dataset.
    • A popup window will appear displaying the digitized data.

  2. Sort Data (Optional):

    • Use the sorting options to organize your data as needed. You can sort by one of the axes variables in ascending or descending order, or use the "Nearest Neighbor" option to sort data based on the distance between points.

  3. Format Dates (Optional): If your plot contains dates, specify the output format for the date values using a combination of the following placeholders:

    Text Replaced With Example
    yyyy Year, all digits 2012
    yy Year, last two digits 98 for 1998
    mmmm Month, full name January
    mmm Month, short name Jan
    mm Month, numeric 01
    dd Date 23
    hh Hour 05
    ii Minutes 12
    ss Seconds 05
    ss.frac Fractional seconds 5.25

    A few examples:

    Format Date Shown (Example)
    dd-mm-yyyy 23-10-2012
    mmmm-yyyy Oct-2012
    yyyy abc mmmm 2012 abc October
    mmm 'yy Oct '12

  4. Number Formatting (Optional):

    • Adjust the number formatting for digitized data columns.
    • Choose from the following styles:
      • Fixed: Display a fixed number of digits after the decimal.
      • Precision: Set the number of significant digits.
      • Exponential: Use scientific notation with the desired number of digits after the decimal.
    • The "Ignore" option disables number formatting.

  5. Export to CSV:

    • Copy the data from the results popup window.
    • Open a text editor (e.g., Notepad on Windows).
    • Paste the copied data into the text editor.
    • Save the file with a .csv extension.
    • The CSV file can now be imported into various data analysis software like Microsoft Excel, Matlab, etc.

Exporting Project Files#

  1. Save Project:

    • Click the "File" menu in the top-left corner.
    • Select "Save Project" from the dropdown menu.
    • Choose a location on your computer to save the project file.
    • Project file formats:
      • .tar: The project file with .tar format will contain all the data points, calibration settings, and the original image.
      • .json: Project files saved in this format not contain the original image. This option is mainly provided for convenience if you want to reuse parameters on different images etc.

  2. Load Project:

    • To reload a saved project, click the "File" menu.
    • Select "Load Project" and browse to the location of your saved .tar or .json file. For .json format project files, you should load the associated image before loading the project parameters.
    • This will restore your previous session, including all data points and settings.