Texas Instruments TI-73VSC Guidebook - Page 91

Chapter 5: Lists 85 6. Change M5 in ¨CEL to M8. !##ba8 b Note: Since the formula is enclosed in quotation marks, element 3 in ¨FRHT is automatically updated. Categorical Lists Categorical lists usually contain words or letters (text elements). If they contain numerical elements, the numerical values of those elements are ignored. Categorical lists are usually used in statistical plotting, but they can allow you to label elements as explained in the following example. See Chapter 6: Statistical Plots for details about using categorical lists in stat plots. To define a categorical list, enclose the first element in quotation marks (found in the Text editor). Quotation marks are optional on the remaining text elements. A categorical list signifier, c, appears next to the list name. ³ A math class has 4 test scores: 2 tests, 1 midterm test, and 1 final exam. Ivan earned test scores of 85, 80, 74, and 82. Karen earned test scores of 90, 85, 92, and 79. Reflect this information in the List editor. 1 Categorical ¨TEST={TEST1,TEST2,MDTRM,FINAL} 2 Numerical ¨IVAN={85,80,74,82} ¨KAREN={90,85,92,79}