1 Introduction. - Exploration-Geochemical Data Analysis Defined. - Strategies. - Sample Data Files. - What All the Programs in This Book Have in Common. - How to Start. - Technical Notes. - References. - 2 Writing and Editing Data Files. - 2. 1 Overview. - 2. 2 Beginning Tutorial. - 2. 3 Extended Tutorial A: Entering Data from a Formatted Data File. - 2. 4 Extended Tutorial B: Entering Data from an Unformatted Data File. - 2. 5 Extended Tutorial C: Entering Data for a File Without Station Names or Numbers. - 2. 6 More Details on Preexisting Files. - 2. 7 Correcting Stations in a Data File. - 2. 8 Adding or Deleting Stations in a Data File. - Reference. - 3 Listing Data Files. - 3. 1 Overview. - 3. 2 Beginning Tutorial. - 3. 3 Extended Tutorial A: Listing Data File XBUTTE-3. - 3. 4 Extended Tutorial B: Listing Data Files BUTTE-2 and NORWAY-2. - 3. 5 Specifying the Output Format. - 4 Summary Statistics. - 4. 1 Overview. - 4. 2 Beginning Tutorial. - 4. 3 Extended Tutorial. - Reference. - 5 Making Histograms. - 5. 1 Overview. - 5. 2 Beginning Tutorial. - 5. 3 Extended Tutorial. - 5. 4 Comments. - 6 Working with Logarithms. - 6. 1 Overview. - 6. 2 Beginning Tutorial. - 6. 3 Extended Tutorial. - References. - 7 Sorted Lists. - 7. 1 Overview. - 7. 2 Beginning Tutorial. - 7. 3 Extended Tutorial. - 8 Estimating Geochemical Thresholds. - 8. 1 Overview. - 8. 2 Beginning Tutorial. - 8. 3 Extended Tutorial. - References. - 9 Comparing Paired Observations. - 9. 1 Overview. - 9. 2 Beginning Tutorial. - 9. 3 Extended Tutorial. - Reference. - 10 Plotting Data. - 10. 1 Overview. - 10. 2 Beginning Tutorial. - 10. 3 Extended Tutorial A: Scaled Plots. - 10. 4 Extended Tutorial B: Three-Dimensional Plots. - Appendix A: Error Messages. - Appendix B: ASCII Characters. Language: English