This document discusses Excel information functions. It explains that information functions provide details about cell data, like whether a cell is empty or contains a number. Some common information functions are ISBLANK(), ISERR(), ISERROR(), and ISLOGICAL(). ISBLANK() returns TRUE if a cell is empty. ISERR() checks for error values. ISERROR() checks for any type of error. ISLOGICAL() checks if a value is logical (TRUE/FALSE). The functions help analyze data in cells and ranges. Examples are provided to demonstrate their use.

1. An Easy Learning Source
Excel Tips and Tricks
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2. As in this graphic
shown here , we
can get the list of
different set of
formulae. One of
such set of
formulae are
Information
Formulae.
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3. Why Information Formulae ?
Excel's Information functions gives you information
about the data in a cell or range of cells. This
information includes whether the data is a number,
the formatting applied to the cell, or even if the cell is
empty.
Each of these functions, referred to collectively as the
IS functions, checks the type of and returns TRUE or
FALSE depending on the outcome. For example, the
ISBLANK function returns the logical TRUE if is a
reference to an empty cell; otherwise it returns FALSE.
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4. the "IS" statements only take one cell at a time.
For Convenient Reading each formula colored differently
ISBLANK() ISERR() ISERROR() ISLOGICAL()
ISNA() ISNONTEXT() ISNUMBER() ISREF()
ISTEXT() CELL() ERROR.TYPE() INFO()
ISEVEN() N() TYPE() IS EVEN()
Important
The "IS" statements only take one cell at a time, but
not a range.
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5. ISBLANK()
This Formula returns TRUE if the reference Cell is
Blank . This formula is useful to find blank cell in
a large range of Cells
In other words - the IsBlank function can be
used to check for blank or null values
Please see example below:
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6. In this Example ,
in Case of A1 ,
the result is False
since A1 is not
blank , where as
B1 is Blank
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7. Using ISBLANK Function with other Formulae
=IF(AND(ISBLANK(A1),ISBLANK(B1),ISBLANK(C1)),
”This Cell is Blank”,False)
In the above Formula , we can find out , by using
IF Formula with “And” Criteria , to notify Blank
Cells from the large Range of Cells.
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8. Using ISBLANK Formula in Conditional Formatting
In this example , I
have tried to know
how many Cells in
the range of A1 to
E2 are blank
Procedure, As shown in the picture, I have opted
Conditional Formatting-> Highlight Cell Rules->More
Rules ->New Formatting Rules. Then I have opted for
“Use a formula to determine which cell to format.
I have used Formula =NOT(ISBLANK(A1:E2)) and
selected the CELL FILL to be RED).
In this Case If any cell contains single space also, it will
be indicated with RED Fill.
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9. ISERR()
In Excel, the this function
can be used to check for
error values. In other
words , This function, Is
Error Other Than Not
Available, tests whether a
value, an expression, or
contents of a referenced
cell has an error other
than not available (#N/A)
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10. ISERROR()
This function, Is Error of Any Kind, tests whether a
value, an expression, or contents of a referenced
cell has any kind of error.
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11. Using , ISERROR with other formulae ( better usage of ISERROR)
In this case, Search for a Name
listed in the range F3:F11,
within the range B3:B11.
Return the Overtime for that
name, listed in range C3:C11,
and place the Overtime , in
range F3:F11
. If we deleted any name from range B3 to B11, the result in F3 to F11 would be #N/A in
respective cells because, the formula would not be able to find the name in range B3:C11. To
hide the error value, the formula would be:
=IF(ISERROR(VLOOKUP(E3,$B$3:$C$11,2,FALSE)),"",VLOOKUP(E3,$B$3:$C$11,2,FALSE))
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12. ISLOGICAL()
FORMULA DESCRIPTION
=ISLOGICAL(TRUE) Checks whether TRUE is a logical value (Yes)
=ISLOGICAL("TRUE") Checks whether "TRUE" is a logical value (No)
=ISNUMBER(4) Checks whether 4 is a number (Yes)
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13. More will be in Part III, Keep Watching
Also you can find these Power Point Presentations
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