1. Excel chapter 2

2. objectives Use semi-selection to create a formula
Use relative, absolute, and mixed cell references in formulas
Insert a function
Total values with the SUM function
Insert basic statistical functions
Determine results with the IF function
Use lookup functions
Use range names

3. Semi selection to create formula
Semi-selection uses the mouse pointer to build a formula containing cell references or ranges
This technique is also called pointing
Create a formula such as =A1+B1.
Click the cell where you want to create the formula.
Type an equal sign (=).
Click cell A1.
Type a plus sign (+).
Click cell B1.
Press Enter to complete the formula.

4. Cell References
Excel offers three types of cell references for use when a formula is copied
Absolute $A$1
Relative A1
Mixed $A1 or A$1
$ indicates that the row number or column letter will not be modified during a copy

5. Example Download Day4-Example.xlsx file to your computer and save it.
Apply cell style to cell A1 and cell range A7 to C7.
Adjust column A width as required.
Wrap text for cell range A7 to C7.
The house cost in column A differs for each row and should be altered during a copy operation. So, for example, when the formula =A8*$B$5 is copied from row 8 to row 9, the formula become =A9*$B$5
The down payment rate in cell B5 is the same for each row and should not be altered during a copy operation. For example, when the formula =A8*$B$5 is copied from row 8 to row 9, the formula become =A9*$B$5

6. Example
Format cell range A8 to A12 as Currency with 0(zero) decimal places.
In cell B8 type the formula =A8*$B$5
Autofill B9 through B12.
In cell C8 type =A8- and click on cell B8
Autofill C9 through C12.

7. Example after working
Example after working will appear similar to this.

8. Functions
An Excel function is a predefined formula that performs a calculation
Syntax is the set of rules that govern correct formation of a function
An argument is an input, such as a cell or range
A function begins with the equal sign (=) followed by the function name and arguments in parentheses
Example: =SUM(A1:A3)

9. Function Categories And Description
Category
Description
Compatibility
Contains functions compatible with Excel 2007 and earlier.
Cube
Returns values based on data in a cube.
Database
Analyses records stored in a database format in Excel.
Date & Time
Provides methods for manipulating date and time values.
Engineering
Calculates values commonly used by engineers.
Financial
Performs financial calculations.
Information
Provides information about the contents of a cell.
Logical
Performs logical tests and returns the value of tests.
Lookup & Reference
Looks up values, creates links to cells, provides references to cells.
Math & Trig
Performs standard math and trigonometry functions.
Statistical
Performs common statistical calculations.
Text
Manipulates text strings.

10. Inserting a Function
When a function is typed, Formula AutoComplete displays a list of functions matching the partial entry

11. Inserting basic functions
A function ScreenTip is a small pop-up description that displays the function arguments
Totaling values with SUM function
=SUM(number 1, [number 2],…..)
Using Average Function
=AVERAGE(number 1,[number2],…..)
Using Median Function
=MEDIAN(number 1,[number2],…..)

12. More Math and Statistical Functions
Function Syntax
Description
=ABS(number)
Displays the absolute value of a number
=FREQUENCY(data_array,bins_array)
Counts how often values appear in given range
=INT(number)
Rounds a value number down to nearest whole number
=MODE.SNGL(number1,[number2],…)
Displays the most frequently occuring value in list
=PI()
Returns the value of pi accurate upto 15 digits
=PRODUCT(number1,[number2],…)
Multiplies all values within argument list.
=RANDBETWEEN(bottom,top)
Generates random numbers between two numbers
=ROUND(number,num_digits)
Rounds value to specific number of digits
=RANK.AVG(number,ref,[order])
Returns an average rank for identical values

13. Date/Time Functions Function Syntax Description =TODAY()
Displays today’s date: month, day, year
=NOW()
Displays today’s date and current military time
=DATE(year,month,day)
Returns serial number for a date
=EDATE(start_date,months)
Displays serial number of a date a specified number of months in future or past
=DAY(serial_number)
Displays the day within a month for a serial number
=MONTH(serial_number)
Returns the month for a serial number
=YEAR(serial_number)
Identifies the year for a serial number

14. Logical Functions IF function The IF function has three arguments:
IF(logical_test,value_if_true,value_if_false)
The IF function has three arguments:
A logical test or condition that is true or false
The resulting value if the condition is true
The resulting value if the condition is false

15. Nested functions
A nested function occurs when one function is embedded as an argument to another function; for example:
=IF(A1<A2,MIN(B1:B5),MAX(B1:B5))
Compute the MIN function if A1 is less than A2
Compute the MAX function if A1 is not less than A2

16. Lookup functions
Lookup functions are used to look up values in a table to perform calculations or display results
For example, a teacher may want to look up an average in order to assign a grade
When searching a range, the breakpoint is the lowest value

17. Creating lookup table
A lookup table typically lists breakpoints in one column and return values in a second column

18. Vlookup function
The VLOOKUP function searches a lookup table for a value and returns the result from the related column
VLOOKUP has three required arguments:
Lookup value
Table array (range of lookup table)
Column index of return value

19. example In Day4-Example.xlxs open GradeBook worksheet
In cell F3 type the formula for lookup as =VLOOKUP(E3,$A$3:$B$7,2)
Autofill the remaining cells.

21. Range Name
A range name is a word or phrase used to identify a cell or cell range
Range names make formulas easier to read
Create a range name
Click the Formulas tab, click Define Name in the Defined Names group to open the New Name dialog box, type the range name in the Name box, and then click OK
Click in the Name Box, type the range name, and then press Enter.