The ISBLANK function in Excel
,=VLOOKUP($E$6,Clients!$A:$D,4,FALSE)
,=VLOOKUP($E$6,Clients!$A:$D,3,FALSE)
,=VLOOKUP($E$6,Clients!$A:$D,2,FALSE)
,=IF(ISBLANK(A13),"",C13*D13)
,=IF(ISBLANK(A13),"",VLOOKUP($A13,Products!$A:$C,2,FALSE))
,=IF(ISBLANK(A13),"",VLOOKUP($A13,Products!$A:$C,3,FALSE)
is a logical function that returns TRUE if the cell referenced is blank, and FALSE if it is not blank. A blank cell is a cell that does not contain any text, numbers, or formulas.
The syntax for the ISBLANK function is:
=ISBLANK(cell_reference)
cell_reference: The cell reference that you want to check.
For example, the following formula will return TRUE if cell A1 is blank:
----------------------------------------
=ISBLANK(A1)
The following formula will return FALSE if cell A1 contains the text "Hello":
=ISBLANK(A1)
The ISBLANK function can be used in a variety of ways, such as:
To check if a cell is empty before entering data into it.
To filter out blank cells from a range of data.
To create a conditional formatting rule that applies formatting to blank cells.
Here are some other functions that are similar to ISBLANK:
ISEMPTY: This function returns TRUE if the cell referenced is empty, and FALSE if it is not empty. An empty cell is a cell that does not contain any text, numbers, formulas, or even spaces.
IFERROR: This function returns a value if the expression evaluates to TRUE, and another value if the expression evaluates to FALSE. The expression can be a cell reference, a formula, or a text string.
COUNTBLANK: This function returns the number of blank cells in a range of cells.
VLOOKUP is a function in Microsoft Excel
that searches for a value in the first column of a table range and returns a corresponding value from another column in the same row. It is a very powerful function that can be used for a variety of data retrieval and analysis tasks.
The syntax for the VLOOKUP function is:
=VLOOKUP(lookup_value, table_array, col_index_num, range_lookup)
lookup_value: The value you want to search for. This can be a cell reference, a number, or a text string.
table_array: The range of cells that contains the data you want to search. This range must be organized in columns, with the lookup value in the first column.
col_index_num: The column number of the value you want to return. This number is 1-based, so the first column is 1, the second column is 2, and so on.
range_lookup: A logical value that determines whether the VLOOKUP function should return an exact match or an approximate match. If range_lookup is TRUE (1), the VLOOKUP function will only return an exact match. If range_lookup is FALSE (0), the VLOOKUP function will return the closest match to the lookup_value.
Here is an example of how to use the VLOOKUP function:
=VLOOKUP(A2, A1:B10, 2, FALSE)
In this example, the VLOOKUP function will search for the value in cell A2 in the range A1:B10. The value in cell A2 is "John Doe". The col_index_num is 2, which means that the VLOOKUP function will return the value in the second column of the table range. The range_lookup is FALSE, so the VLOOKUP function will return the closest match to the lookup_value.
In this case, the VLOOKUP function will return the value in cell B2, which is "1234567890".
Here are the 3 rules for VLOOKUP:
The data in the supplied table_array must be organized in columns.
The function sees upper case and lower case text as being equal (i.e. a lookup of the string "TEXT" will match the string "text").
The Vlookup function does not recognise numbers and text representations of numbers as being equal.
To do a VLOOKUP from one Excel sheet to another, you can use the following syntax:
=VLOOKUP(lookup_value, [sheet_name]sheet_range, col_index_num, range_lookup)
In this syntax, the [sheet_name] is the name of the sheet that contains the table range. The sheet_range is the range of cells in the sheet that contains the data you want to search.
For example, if you want to do a VLOOKUP from sheet "Sheet2" to sheet "Sheet1", you would use the following syntax:
=VLOOKUP(lookup_value, [Sheet2]A1:B10, col_index_num, range_lookup)