Presentation on theme: "Excel Lesson 11 Improving Data Accuracy"— Presentation transcript:
1Excel Lesson 11 Improving Data Accuracy Microsoft Office 2010 AdvancedCable / Morrison
2Objectives Use advanced sorting. Add subtotals to worksheet data. Create a validation rule.Enter data in a validation range.Circle invalid data.
3Objectives (continued) Improve data entry accuracy using drop-down lists.Convert text to columns.Combine text.Use a Watch Window.
4Vocabulary concatenation data validation delimiter destination range grand totalsubtotalvalidation rangevalidation ruleWatch Window44
5IntroductionExcel has several features that enable you to work efficiently and accurately with data.Subtotal feature instantly adds a formula that totals the worksheet data to a cell.Data Validation feature is used to set rules about how data can be entered.Circle Invalid Data feature places circles around any invalid data.55
6Introduction (continued) Concatenation: a process in which Excel combines data.Convert Text to Columns feature separates data.Watch Window feature enables you to view data from one worksheet while you enter or view data in another worksheet.66
7Advanced Sorting Excel offers many advanced sorting options. Can create custom sorting optionsCan sort multiple columns of data at one timeSort dialog box
9Adding SubtotalsA subtotal is the total of only specific parts of the data.The grand total is the total for all the data.The Subtotal feature quickly calculates subtotals and grand totals.These totals can be removed when you’re finished viewing or printing the data.
10Adding Subtotals (continued) Data after subtotals applied
11Adding Subtotals (continued) Options in the Subtotal dialog box
12Creating a Data Validation Rule The Data Validation feature ensures that data is entered as accurately as possible.A validation rule is used to set parameters for cells where values will be entered.The validation range is the range of cells that you select to apply the validation rule.
13Creating a Data Validation Rule (continued) Completed Settings tab in Data Validation dialog box
14Entering Data into a Validation Range After you select a range and enter a validation rule for the validation range, the data entered into this range is monitored.If the data entered is invalid, a message will appear to let you know what is wrong.
15Entering Data into a Validation Range (continued) Error message appears when incorrect data is entered
16Circling Invalid DataThe Circle Invalid Data feature is used to have circles drawn around data that does not meet the data validation requirements.The circles act as a visual reminder of which cells contain invalid data.
17Circling Invalid Data (continued) Invalid data appears with a circle
18Adding a Drop-Down List for Selections Drop-down lists display specific selections from which you can choose.Can be used to further increase data accuracyVery useful when only specific data can be entered into a cellTo create a drop-down list, it is easier if you first create a range of cells that has the selections that should appear in the list.
19Adding a Drop-Down List for Selections (continued) Store Aisle Location data validation list
20Converting Text to Columns The Convert Text to Columns is used to separate data in a worksheet.Convert Text to Columns Wizard provides a step-by-step process to do this.A delimiter is a character, such as a comma, space, or a tab, used to separate data.The destination range is the location where the separated data will be placed.
21Converting Text to Columns (continued) Convert Text to Columns Wizard – Step 1 of 3
22Combining TextTo join the values of cells together, you use the Concatenate function.The Concatenate function combines the text from two or more cells into one cell.You can also add other text, such as spaces, into the Concatenate function.To add a space, enter “ “ into Concatenate function.
23Combining Text (continued) Completed Function Arguments dialog box
24Worksheet with Watch Window Adding a Watch WindowThe Watch Window is used so that you are able to view specific data, no matter which worksheet you are using.Worksheet with Watch Window
25Summary In this lesson, you learned: You can use advanced sorting features to organize worksheet data.Adding subtotals to worksheet data lets you instantly view totals in the worksheet.Adding a validation rule to a range improves accuracy when data is entered.
26Summary (continued)When you enter data in a validation range, you can create input and error messages for the range.You can choose to have the Data Validation feature place circles around invalid data.You can improve data entry accuracy with drop-down lists.
27Summary (continued)Rather than retyping data, you can use the Convert Text to Columns feature to separate data from one cell into multiple cells.Text from multiple cells can be combined into one cell using the Concatenate feature.The Watch Window lets you view data from one worksheet while you work in other worksheets.