Extracting Data From a Figure using GetData

  1. Open pdf in Adobe Reader.
  2. Zoom in on the figure
  3. Choose Tools $ \to$ Select and Zoom
  4. Open Paint
  5. Paste Picture
  6. Save as authorYYYYabc_figX.jpg
  7. Open Get Data
  8. File $ \to$ open open figure
  9. select button with two arrows (fourth from left)
  10. follow instructions to select x min, x max, y min and y max. If the x-axis has a categorical variable, it does not matter what values you use for x min and x max.
  11. make sure to set the correct values for the max and min of each axis, and indicate if the axis is log-scaled
  12. select the target button (seven from left)
  13. click over center of desired data points and error bars
  14. copy data to google spreadsheet (see Section 3
  15. calculate SE as the distance between the error bar upper bound and the mean (absolute value of difference between the two points)



David 2011-10-07