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Excel 2007. Review. Topics. Review spreadsheet concepts Cell and cell contents Labels and values Functions, and formulas Arithmetic and comparison operators Cell reference types Format cells and worksheets Chart types. Spreadsheet Concepts.
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Excel 2007 Review
Topics • Review spreadsheet concepts • Cell and cell contents • Labels and values • Functions, and formulas • Arithmetic and comparison operators • Cell reference types • Format cells and worksheets • Chart types
Spreadsheet Concepts • An electronic spreadsheet program allows you to perform numeric calculations and to analyze and present numeric data • The spreadsheet is called a worksheetand the individual worksheets are stored in a workbook which is the Excel file • Sheet tabs located at the bottom let you switch from sheet to sheet in a workbook
Cell and Cell Address • The intersection of a row and a column is called a cell • Each cell has its own unique location called a cell address • A cell address is identified by its column and row coordinates (ie: A1, C23, D15, etc.) • The Name box displays the active cell address • Contents of the active cell can be edited in the cell itself or in the formula bar • A selection of two or more cells such as B5:B14 is called a range
Formula bar Name box and current cell address Cell pointer Sheet tabs Status bar
Labels, Values, Functions and Formulas • Labels contain text and numerical information not used in calculations • Labels help you identify data in worksheet rows and columns • Values are numbers, dates, formulas, and functions that can be used in calculations. • A function is a built-in or predefine formula that makes it easy to perform a complex calculation • Most functions require arguments, which is the information necessary for the calculation • Arguments are enclosed in parenthesis and are separated by commas. • Max, Min, Sum, Average, etc. • Formulas are user defined equations
Formulas and Functions • When creating formulas or using functions, it is important to: • Know where the formulas should be • Know exactly what cells and arithmetic operations are needed • Create formulas with care • Use cell references rather than values • Formulas and functions begin with the equal sign (=)
Order of Precedence in Formulas Operations inside parentheses are calculated first Reference operators such as ranges are calculated next Exponents are calculated next Multiplication and division are calculated next (from left to right) Addition and subtraction are calculated next (from left to right)
SUM Function AutoSum button Function Cells included in formula
Comparison Operators • Comparison operators compare values for the purpose of true/false results • If function format and arguments:If(logical_test, value_if_true, value_if_false) • Logical Test – what is being compared using comparison operators (>, <, =, <=, >=, <>) • A different value, formula, or function can be returned or performed when result is true or false.
Relative Cell References Use a relative cell referencewhen you want to preserve the relationship to the formula location When a formula is copied, the cell reference changes to preserve the relationship of the formula to the referenced cells
Use an absolute cell reference when you want to preserve the exact cell address in a formula Cell reference does not change when the formula is copied to another location Created by placing a dollar sign ($) before either the column letter and the row number or both of a cell’s address Apply absolute cell reference before copying a formula if you want one or more cell references to remain unchanged in relation to the formula Absolute Cell References
A mixed cell reference combines both relative and absolute cell referencing Example: When you copy a formula, you may want to change the row reference but keep the column reference Created using the [F4] function key Switch between displaying formulas and their values on a worksheet by pressingCTRL + ` (grave accent) Do NOT adjust or format columns in Formula View See next slide for example Mixed References & Formula View
Relative vs Absolute Referencesin Formula View Cell referenced in absolute formulas Absolute references do not adjust Relative references adjust for column and row
Formatting Values • After getting the numeric data in place, it can be formatted for better presentation. • The format of a cell determines how the labels and values look • Bold, italic, dollar signs, commas, etc. • Formatting does not change the data only its appearance
Formatting Spreadsheet • Adjust column width • Apply colors, borders and patterns • Apply conditional formatting so that unexpected or exceeding values are highlighted • Use built-in Themes • Insert and delete rows and columns • Use spellchecker
Numeric data can usually be presented better using a chart. Determine the purpose of the chart and identify the data relationships you want to communicate graphically Identify the worksheet data you want the chart to illustrate Determine results you want and decide which chart type is most appropriate (see next slide) Planning a Chart
Common Chart Types • Column – compares distinct object levels using a vertical format • Line – compares trends over even time intervals; does not emphasize total • Pie – compares sizes of pieces as part of a whole (100%) • Bar – compares distinct object levels using a horizontal format • Area – shows how individual volume changes over time in relation to total volume • Scatter (XY) – compares two values over uneven time or measurement intervals
The horizontal axis (x-axis) is also called the category axis The vertical axis (y-axis) is also called the value axis The z-axis is present in 3-D charts A legend makes it easy to identify each data series Chart Elements
Chart Elements Legend X - Vertical axis Y - Horizontal axis
Creating a Chart Select a range of data Use buttons on the Insert tab of the Ribbon to create and modify a chart In a pie chart, emphasize a data point by exploding, or pulling that slice away from the pie chart An embedded chart is one that is inserted directly in the current worksheet A chart sheet is a sheet in a workbook that contains only a chart, which is linked to the workbook data
To Learn More… Consider taking CIS114DE - Excel