## UNIQUE FUNCTION

UNIQUE

Unique function is unique to google docs spreadsheets, the Returns only the unique rows in the source array, duplicates will be ignored

The syntax of the function is as follows:

UNIQUE(SourceArray)

SourceArray:  range of cells, number, date or string, data has to be of the same type, it can also be array formula results.

Note:

• The output of the unique function will in the same order as that of SourceArray.

• unique values will give only for vertical array only

• to get unique values from a horizontal array we have to use the transpose function inside the unique function.

Example 1:

the data is cell A2:A11 to extract the unique value from the formula used in cell B2 is

=unique(A2:A1)

Example 2:

we can extract the unique values from column A&B the formula in cell C2 is

=ArrayFormula(UNIQUE(TRANSPOSE(SPLIT(CONCATENATE(A2:B&CHAR(9));CHAR(9)))))

the explanation to the above formula at the following link

https://anandexcels.wordpress.com/2012/02/14/extracting-unique-records-from-two-columns/

## COUNTIF

Returns the number of elements that meet certain criteria within a cell range. Range is the range to which the criteria are to be applied.

COUNTIF(range, criteria)

range:  The collection containing the values to be tested. Range  is a collection that can contain any value type.

criteria:  An expression that results in a logical TRUE or FALSE. condition is an expression that can contain anything as long as the result from comparing condition to a value in range can be expressed as a Boolean value of TRUE or FALSE.

Usage Notes
Each range value is compared to criteria. If the value meets the conditional test, it is included in the count.

You can use the wildcard characters, question mark (?) and asterisk (*), in criteria. A question mark matches any single character; an asterisk matches any sequence of characters. If you want to find an actual question mark or asterisk, type a tilde (~) before the character.

Examples:
In the sample data if we want to count for the criteria “Pencil “

the formula will be
=COUNTIF(C2:C30,”Pencil”) will return value 16

the same results can be achieved using other worksheet formulas ex:
Using Sumproduct
=ArrayFormula(SUMPRODUCT((C2:C30=”Pencil”)))

Using Sum
=ArrayFormula(SUM((C2:C30=”Pencil”)))

Using DCOUNTA
=DCOUNTA(A1:F30,”Product”,K2:P3)
where K2:P3 is

with wildcard (*,?)
if we want to count the word Pen and Pencil in the countif
=COUNTIF(C2:C30,”Pen*”) will return 20
Count will include the both Pen and Pencil

To Count the unique values in the column E which contain only numbers the formula will be
=ArrayFormula(sum(1/countif(E2:E30,E2:E30))) will return with answer of 9

To Count the unique values in the column c which contain text the formula will be

=ArrayFormula(SUM((C2:C30<>””)/COUNTIF(C2:C30,C2:C30&””))) will return with value 4
this can be cross checked with =unique(c3:c30)

To count the number of cells that contain a negative number:

=COUNTIF(data,”<0″)

To count the number of cells that contain the word “yes” (not case sensitive):

=COUNTIF(range,”yes”)

To count the number of cells that contain any text:

=COUNTIF(range,”*”)

To count the number of cells that contain either “yes” or “no” (not case-sensitive):

=COUNTIF(range,”yes”)+COUNTIF(range,”no”)

To count the number of cells that contain a value between 1 and 10:

=COUNTIF(range,”>=1″)-COUNTIF(range,”>10″)

Sample data