ITC Session 6 by Email
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Transcript of ITC Session 6 by Email
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7/27/2019 ITC Session 6 by Email
1/19
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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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7/27/2019 ITC Session 6 by Email
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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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7/27/2019 ITC Session 6 by Email
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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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7/27/2019 ITC Session 6 by Email
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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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7/27/2019 ITC Session 6 by Email
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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