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ExcelText Functions

MGMI 311

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Data Structure

• Text is Excel = Array of Characters= String (when coding)

• Text Function Array Operation

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ASCII code• Most computers use ASCII code to

represent text, which makes it possible to transfer data from one computer to another.

• American Standard Code for Information Interchange

• The standard ASCII code character set uses just 7 bits for each character

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CODE(text)

• Returns the ASCII value of a character or the first character in a cell

• i.e. the function will return the ASCII value for the first character and ignore all of the characters after the first.

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Array Function Vs. Excel Text

Array Function Excel Text Function

SIZE() Length of Array LENFirst() First element in an Array LEFT(Text,

Chars)Last() Last element in an Array RIGHT(Text,

Chars)Find

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FIND (Find_Text, Within_Text, Start_num)

• Returns the location of a substring in a string

• i.e. FIND is case-sensitive

SEARCH is not case-sensitive

If No Match, it will return #Value

SEARCH (Find_Text, Within_Text, Start_num)

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MID (text, Start, Chars)• Extract a substring from a string

(starting at any position)

Note

• Start = start position (default = 1)

• Chars = number of characters

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REPLACE (oldText,start_num, Num_chars,New_text)

• Replaces a sequence of characters in a string with another set of characters

Note• oldText = the original string value• Number_chars = the number of

characters to replace the oldText

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SUBSTITUTE (Text, oldText,newText, Instance_num)

• Replaces a set of characters with another

Note• Instance_num = n th appearance of

the oldText that you want to replace

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Text Functions• Concatenate (Text1, Text2,..., TextX)

• Exact (Text1, Text2)

• FIXED (Numbers, Decimals, No_comment)

• LEFT / RIGHT (Text, Char)

• LOWER (Text), PROPER (Text), UPPER (Text)

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Logical Function

• Logical condition test : logical operators( return TRUE / FALSE ) e.g.

ISBLANK ISTEXT ISNONTEXT ISNUMBER ISEVEN / ISODD ISERROR