ITC Session 6 by Email

7/27/2019 ITC Session 6 by Email

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ITC Session-6

If, Countif, Countifs,Sumif, Countifs,

Lookup, VLookup,

Index, Match

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More on

Text Functions


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Trim(Text)

Removes

spaces from start and end of text string

all except single spaces between words

Does NOT remove

some special non-breaking space characters (160)copied from websites

When TRIM doesn't work, try other methods:

manually delete the non-breaking space character

use the SUBSTITUTE function

record or write a macro

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Clean(Text)Removes

some non-printing characters from text

characters 0 to 31, 129, 141, 143, 144, and 157

For other non-printing characters, use SUBSTITUTE to replace them with space

characters, or empty strings


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If

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IF(logical_test, value_if_true, [value_if_false])logical_test Required.

Any value or expression that can be evaluated to TRUE or FALSE This argument can use any comparison calculation operator

value_if_true Required. The value that you want to be returned if the logical_test argument evaluates to TRUE. Iflogical_test evaluates to TRUE and the value_if_true argument is omitted (that is,

there is only a comma following the logical_test argument), the IF function returns 0(zero).

To display the word TRUE, use the logical value TRUE for the value_if_true argument.

value_if_false Optional. The value that you want to be returned if the logical_test argument evaluates to FALSE. Iflogical_test evaluates to FALSE and the value_if_false argument is omitted, (that is,

there is no comma following the value_if_true argument), the IF function returns thelogical value FALSE.

Iflogical_test evaluates to FALSE and the value of the value_if_false argument isomitted (that is, in the IF function, there is no comma following the value_if_trueargument), the IF function returns the value 0 (zero)

Up to 64 IF functions can be nested as value_if_true and value_if_false argumentsto construct more elaborate tests. Alternatively, to test many conditions, consider using the LOOKUP, VLOOKUP,

HLOOKUP, or CHOOSE functions

If any of the arguments to IF are arrays, every element of the array is evaluatedwhen the IF statement is carried out


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IF A useful Logical Function

Simple to Nested

=IF(condition,expression1,expression2), where

condition is any condition that is either true or false,

expression1 is the value of the formula if the condition istrue, and

expression2 is the value of the formula if the condition isfalse

=IF(A1


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Using Operators with IF

=IF(A1A2,"Not Equal","Equal")

If the value of A1 is not the same as the value ofA2, show the words Not Equal; otherwise, show the

word Equal

=IF(A1>=0,0,A1)

If the value of A1 is greater than or equal to 0(zero), show 0; otherwise, show the value of A1

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Using Operators with IF=IF(IF(A1>A2,200,100)=200,"Yes","No")

If the value of A1 is greater than A2, set atemporary value to 200; otherwise, set it to 100.Compare the temporary value to 200. If it's equal to

200, display Yes; otherwise, display No

IF(C10=AVERAGE(D1:D5),C10,"Out of Range"

If the average of D1:D5 is equal to C10, show thataverage; otherwise, show the text Out of Range


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IF Examples:

If the value of C6 is not equal to the value ofA12 plus 14, display the text "Invalid";otherwise, display the value of C6

=IF(C6A12+14,"Invalid",C6)

If the value of B4 is greater than the sum ofA1:A12, multiply C10 by 1.25; otherwise,

multiply C10 by 0.75 =IF(B4>SUM(A1:A12),C10*1.25,C10*0.75)

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Nested IF Functions=IF(condition1,expression1,IF(condition2,expression2,expression3))

Ifcondition1 is true, the relevant value isexpression1. Otherwise, condition2 is checked

If it is true, the relevant value is expression2 Otherwise,

the relevant value is expression3

=IF(A1


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Using Boolean Logical Functions to

Evaluate a List of Values and Determine a

Single True or False Value

AND Used to determine if all arguments are TRUE

OR Used to determine if either argument is TRUE

NOT Evaluates only one logical argument to determineif it is FALSE

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AND and OR Truth table


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Common Logical Constructs

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IF Functions with Logical AND or OR Conditions

=IF(AND(condition1,condition2),expression1,expression2)

results in expression1 if both condition1 andcondition2 are true

Otherwise, it results in expression2

=IF(OR(condition1,condition2),expression1,expression2)

results in expression1 if either condition1 orcondition2 is true (or if both are true)

Otherwise, it results in expression2

Note that any number of conditions, not justtwo, could be included in the AND/ OR, allseparated by commas


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AND and OR conditions in the same formula

=IF(OR(AND(B3>=10,C3>=15),D3


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COUNTIF(range, criteria)range Required

One or more cells to count, including numbers or names, arrays, orreferences that contain numbers. Blank and text values are ignored.

criteria Required

A number, expression, cell reference, or text string that defines whichcells will be counted.

For example, criteria can be expressed as 32, ">32", B4, "apples", or "32".

Wildcard characters, the question mark (?) and the asterisk (*),can be used in criteria

A question mark matches any single character, and

An asterisk matches any sequence of characters

If needed to find an actual question mark or asterisk, type a tilde (~) beforethe character

Criteria are case insensitive; for example, the string "apples" and the string "APPLES" will match the

same cells

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COUNTIF Function: Examples (1 of 2)=COUNTIF(A1:C12,"?????")

Counts the number of cells containing exactly five characters of text.

=COUNTIF(A1:C12,100) Counts the number of cells containing the value 100.

=COUNTIF(A1:C12,"L*") Counts the number of cells containing text entries that begin with theletter L

=COUNTIF(A1:C12,">0") Counts the number of cells containing numeric values greater than zero

=COUNTIF(A1:C12,"


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COUNTIF Function: Examples (2 of 2)

=COUNTIF(A1:C12,">="&MIN(A1:C12))

Counts the number of cells containing a numeric valuegreater than or equal to the minimum value in the range

=COUNTIF(A1:C12,TRUE) Counts the number of cells containing the logical valueTRUE (This is not the same as the text "TRUE")

=COUNTIF(A1:C12,"TRUE")

Counts the number of cells containing the word "TRUE" as

a text entry

=COUNTIF(A1:C12,"10")

Counts the number of cells containing a numeric value lessthan 1 and the number of cells containing a numeric valuegreater than 10, and then adds the two counts

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Lookup, VLookup,

Index, Match


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Lookup

With Vector form,

it looks for a value in a specified column or row, LOOKUP(lookup_value,lookup_vector,result_vector)

lookup_value can be text, number, logical value, a name or areference

lookup_vector is a range with only one row or one column

result_vector is a range with only one row orone column lookup_vector and result_vector must be the same size

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Lookup

With Array form,

it looks in the first row or column of an array

LOOKUP(lookup_value,array) lookup_value can be text, number, logical value, a name or a

reference

searches based on the array dimensions:

if there are more columns than rows, it searches in the first row

if equal number, or more rows, it searches first column

returns value from same position in last row/column


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Be Careful

The LOOKUP function doesn't have an option

for Exact Match If the lookup value isn't found, it matches the

largest value that is less than the lookup value

The lookup array or vector must be sorted in ascending order, or the result

might be incorrectIf the first value in the lookup array/vector isbigger than the lookup value, the result is an #N/A error

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Lookup Tables and VLOOKUP FunctionLookup tables

useful when we want to compare a particular valueto a set of values, and depending on where ourvalue falls, return the appropriate result

Two versions vertical (VLOOKUP) and horizontal (HLOOKUP).


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VLookupVLOOKUP(lookup_value,table_array,col_index_num,range_lookup)

lookup_value:

the value that you want to look for,

a value, or a cell reference table_array:

the lookup table

a range reference or a range name, with 2 or more columns

col_index_num:

the column that has the value you want returned, based

on the column number within the table

[range_lookup]:

for an exact match, use FALSE or 0;

for an approximate match, use TRUE or 1, with thelookup value column sorted in ascending order

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VLOOKUP Function=VLOOKUP(value,lookup table,column #,TRUE or FALSE)

three arguments plus an optional fourth argument:

1. The value to be compared

2. A lookup table, with the values to be compared with

always in the left column3.The column number of the lookup table where you find

the answer

4. TRUE or FALSE (which is TRUE by default if omitted)


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The optional fourth argument

The default value, TRUE, indicates approximate match

It sees where the lookup value fits in a range of values, namely,those in the first column of the lookup table.

the first column of the lookup table must be in ascending order.

if the fourth argument is FALSE, indicates exact match inthe first column of the lookup table.

it doesn't matter whether the first column is in ascending order ornot.

returns an error if no exact match can be found.

Note

Because the VLOOKUP function is often copied down acolumn, make the second argument an absolute reference

give the lookup table a range name

However, a range name is not necessary.

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Looking Up a Value in a Range (Approx.)Common use of a lookup table is to see wherea value fits in a range of values

fourth argument can be omitted, because

Its default value is TRUE


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Looking for an Exact Match

Remember three things

The fourth arguments is not optional;

it must be FALSE

The first column of the lookup table doesn't have tobe in ascending order;

it can be, but order doesn't matter

If no exact match exists,

the function returns an error (#NA)

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Index and MatchIndex (Array, Row no., Col no.)

Returns the entry in any row andcolumn within an array of numbers

Match (lookup value, lookup range,[match type])

Returns the position of a number ina range rather than the value in aparticular cell


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INDEX finds the value in a particularcell of a rectangular range

=INDEX(range,row index,column index),where row index is an integer (for row) andcolumn index

is an integer (for column)=INDEX(D11:F20,4,2) refers to the value in cell E14,the cell in the 4th row and 2nd column of the range


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Single column or row index

Ifrange is a single-column range, the columnindex argument can be omitted.

=INDEX(range,row index) returns the value in row

row index of the range=INDEX(A11:A20,3) refers to the value in cell A13, the 3rd

cell in the range

Ifrange is a single-row range, only columnindex needs to be included.

=INDEX(B10:E10,3) refers to the value in cell D10,the 3rd cell in the range

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MATCH - used when we want the position ofa number in a range rather than the valueMatch(lookup value, lookup range, [match type])

Lookup value is the value youre trying to match in the lookup range Lookup range is the range youre examining for a matchto the lookup

value Match type=0 returns the row location in the lookup range that contains

the first exact match to the lookup value. When no exact match exists and match type=0, Excel returns #N/A Most MATCH function applications use match type=0, but if match type is

not included, match type=1 is assumed Use Match type 0 when the cell contents of the lookup range is unsorted

Match type=1 requires the lookup range to consist of numbers listed inascending order.

The MATCH function then returns the row location in the lookup range(relative to the top of the lookup range) that contains the largest value in the

range that is less than or equal to the lookup value Match type=1 requires the lookup range to consist of numbers listed indescending order.

The MATCH function returns the row location in the lookup range (relativeto the top of the lookup range) that contains the last value in the range thatis greater than or equal to the lookup value


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The MATCH function searches a table of data

and returns the location of a desired value

=MATCH(lookup_value, table_array, match_type)

The match_type parameter, can be

0

the location of the first value it finds that is equal to the valuefor which we are searching (default)

1

the location of the largest value that is less than or equal toour specified value (given that the data is in ascending order)

1 the location of the smallest value that is greater than or equal

to our value (given that the data is in descending order

Thanks

Documents

ITC Session 6 by Email