DOCUMENTATION

NORMALIZE SYNTAX

=NORMALIZE(lookupValue, stopArray)

Use the NORMALIZE function to remove diacritical marks from strings before applying FUZZYMATCH or any of the lookup functions to them.

The lookupValue parameter can either be:

• A single cell e.g. NORMALIZE(A1) or,
• A range of cells e.g. NORMALIZE(A1:A30000).

You can also use this function to remove stop words. This is useful if you have words that you would like to Flookup to ignore during processing. To do this, you need to feed the stopArray parameter with an array of words you want to ignore as shown below:

• NORMALIZE(A1:A30000, B1:B500)

Please note that this second argument is optional and, therefore, if you do not include it, the function will default to removing diacritical marks. Also note that, in this mode, NORMALIZE will return a new list of words in lowercase form, without modifying the original list.

FUZZYMATCH SYNTAX

=FUZZYMATCH(string1, string2) 

Use the FUZZYMATCH function to calculate the percentage similarity between strings and return the result in decimal form.

FUZZYMATCH Parameters

• string1 [Required]. The string to be compared to string2.
• string2 [Required]. The string to be compared to string1.

NOTES:

1. The two strings can be interchanged without affecting the result.
2. Numbers are treated as text.
3. string1 and string2 can be modified into ranges i.e. =FUZZYMATCH(A1:A20000,B1:B20000) OR =FUZZYMATCH(A1,B1:B20000).
4. FUZZYMATCH supports multiple languages.

FLOOKUP SYNTAX

=FLOOKUP(lookupValue, tableArray, lookupCol, indexNum, [threshold], [rank])

Use the FLOOKUP function to search the any column of a range of cells, and then return a value from a specified column of that range. For example, suppose you have two separate lists of names contained in ranges A2:A3000 and B2:D5000. In order to compare the text in both these columns you can simply type:

=FLOOKUP(A2, B2:D5000, 1, 3)

This formula searches for the value found in cell A2 in the first column of the range B2:D5000, and then returns the first match contained in the third column of that same range.

In order to retrieve a value and there is a chance that it might be spelled differently in B2:D5000, one can type:

=FLOOKUP(A2, B2:D5000, 1, 3, 0.5)

This formula searches for the value found in cell A2 in the first column of the range B2:D5000 but, unlike the first example, this time the algorithm matches the first string with a 0.5 percentage similarity minimum. This parameter is adjustable and it takes any value from 0 to 1.

Finally, unlike other solutions, Flookup is not limited to searching the left most column of a specified range. For example, one can simply search for A2 in the second column of B2:D5000 and return data from the first column by using the formula below:

=FLOOKUP(A2, B2:D5000, 2, 1)

... or search for A2 in the second column of B2:D5000 and return data from the third column like this:

=FLOOKUP(A2, B2:D5000, 2, 3)

FLOOKUP Parameters

• lookupValue [Required]. The value to search for in the any column of the table or range. The lookupValue argument can be a value or a reference.
• tableArray [Required]. The range of cells (database) that contains the data. The values in the user-specified column of tableArray are systematically compared to lookupValue. These values can be text, numbers, or other values.
• lookupCol [Required]. The column number in tableArray which must be searched by the algorithm. A lookupCol value of 1 searches the first column in tableArray, a lookupCol value of 2 searches second column in tableArray, and so on. Values must be greater than 0.
• indexNum [Required]. The column number in the tableArray argument from which the matching value must be returned. An indexNum argument of 1 returns the value in the first column in tableArray, an indexNum of 2 returns the value in the second column in tableArray, and so on. Values must be greater than 0.
• threshold [Optional]. A variable that specifies whether you want Flookup to find an exact match or an approximate match. It is the similarity level below which results WILL NOT be returned from tableArray. Values range from 0 (lowest possible match) to 1 (exact match). The default value is 0.6.
• rank [Optional]. A variable that specifies the rank, of all the possible matches, that you want returned from tableArray. Values range from 1 (first possible match) to n (the nth possible match). The default value is 1 and results are ranked in order of descending percentage similarity.

HFLOOKUP SYNTAX

=HFLOOKUP(lookupValue, tableArray, lookupRow, indexNum, [threshold], [rank])

Use the HFLOOKUP function to search the any row of a range of cells, and then return a value from a specified row of that range. It works exactly like a transposed FLOOKUP function.

HFLOOKUP Parameters

• lookupValue [Required]. The value to search for in the any row of the table or range. The lookupValue argument can be a value or a reference.
• tableArray [Required]. The range of cells that you want to retrieve data from. The values in a user-specified row of tableArray are systematically compared to lookupValue. These values can be text, numbers, or other values.
• lookupRow [Required]. The row number in tableArray which must be searched by the algorithm. A lookupRow value of 1 searches the first row in tableArray, a lookupRow value of 2 searches second row in tableArray, and so on. Values must be greater than 0.
• indexNum [Required]. The row number in the tableArray argument from which the matching value must be returned. An indexNum argument of 1 returns the value in the first row in tableArray, an indexNum of 2 returns the value in the second row in tableArray, and so on. Values must be greater than 0.
• threshold [Optional]. A variable that specifies whether you want HFLOOKUP to find an exact match or an approximate match. It is the similarity level below which results WILL NOT be returned from tableArray. Values range from 0 (lowest possible match) to 1 (exact match). The default value is 0.6.
• rank [Optional]. A variable that specifies the rank, of all the possible matches, that you want returned from tableArray. Values range from 1 (first possible match) to n (the nth possible match). The default value is 1 and results are ranked in order of descending percentage similarity.

SOUNDMATCH SYNTAX

=SOUNDMATCH(lookupValue, tableArray, lookupCol, indexNum, [rank])

Use the SOUNDMATCH function to perform lookup tasks and return values based on what their Soundex codes are.

Soundex is a phonetic algorithm for indexing names by sound, as pronounced in English. It encodes similar sounding words so that they can be matched regardless of differences in spelling. You can find out more about it here.

SOUNDMATCH also allows you to return alternative matches using the rank parameter. These matches range from 1 (best match) to n (the nth best match).

SOUNDMATCH Parameters

• lookupValue [Required]. The value to search in the any column of the table or range. The lookupValue argument can be a value or a reference.
• tableArray [Required]. The range of cells (database) that contains the data. You can use a reference to a range. The values in the first column of tableArray are the values searched by lookupValue. These values can be text, numbers, or other values.
• lookupCol [Required]. The column number in tableArray which must be searched by the algorithm. A lookupCol value of 1 searches the first column in tableArray, a lookupCol value of 2 searches second column in tableArray, and so on. Values must be greater than 0.
• indexNum [Required]. The column number in the tableArray argument from which the matching value must be returned. An indexNum argument of 1 returns the value in the first column in tableArray, an indexNum of 2 returns the value in the second column in tableArray, and so on. Values must be greater than 0.
• rank [Optional]. A variable that specifies the rank, of all the possible matches, that you want returned from tableArray. Values range from 1 (first possible match) to n (the nth possible match). The default value is 1 and results are ranked alphabetically (ascending order).

SUMLOOKUP SYNTAX

=SUMLOOKUP(lookupValue, colArray, lookupCol, [threshold])

SUMLOOKUP is the fuzzy match version of SUMIF. Use the SUMLOOKUP find the sum of values of a given column based on corresponding partial matches in another column.

For example, suppose you have a list of employee names containing typos or spelling variations in range A2:A5000 and their respective salaries spanning several months contained in B2:B5000. In order to calculate the total remuneration due to and employee called "Michael Angel", you can type:

=SUMLOOKUP("Michael Angel", A2:A5000, B2:B5000)

Now let's suppose that his name is contained in cell C2. To get this sum, you can type:

=SUMLOOKUP(C2, A2:A5000, B2:B5000, 0.8)

SUMLOOKUP Parameters

• lookupValue [Required]. The value to search for in the any specified column. The lookupValue argument can either be a value or a reference.
• colArray [Required]. The column to be searched for possible matches.
• lookupCol [Required]. The column number from from which values will be either merged (for text) or summed (for numbers).
• threshold [Optional]. The minimum level of percentage similarity below which matches in colArray will be ignored. The default value is 0.6.

MEANLOOKUP SYNTAX

=MEANLOOKUP(lookupValue, colArray, lookupCol, [threshold])

MEANLOOKUP is the fuzzy match version of AVERAGEIF. Use the MEANLOOKUP find the average of values of a given column based on corresponding partial matches in another column.

For example, suppose you have a list of student names containing typos or spelling variations in range A2:A5000 and test scores spanning several months contained in B2:B5000. In order to calculate the average test score of a student named "Gabriel Angel", you can type:

=MEANLOOKUP("Gabriel Angel", A2:A5000, B2:B5000)

Now let's suppose that his name is contained in cell C2. To get this average, you can type:

=MEANLOOKUP(C2, A2:A5000, B2:B5000, 0.8)

MEANLOOKUP Parameters

• lookupValue [Required]. The value to search for in the any specified column. The lookupValue argument can either be a value or a reference.
• colArray [Required]. The column to be searched for possible matches.
• lookupCol [Required]. The column number from from which values will be averaged.
• threshold [Optional]. The minimum level of percentage similarity below which matches in colArray will be ignored. The default value is 0.6.

ULIST SYNTAX

=ULIST(colArray, [indexNum], [threshold]) 

Use ULIST to remove duplicates and return unique values from a range that you have specified. This function does not modify the original range or values and they can either be exact matches or not.

ULIST Parameters

• colArray [Required]. The range from which you want to return unique values.
• indexNum [Optional]. The column index to analyse for unique values. The default value is 1.
• threshold [Optional]. The minimum percentage similarity between the colArray values that are not unique. Therefore a threshold value of 0.6 means that ULIST will look for partial matches and then eliminate any values with a 60 percent similarity and above. The default value is 1.

HIGHLIGHT DUPLICATE VALUES

Flookup can be used to highlight duplicates in Google Sheets. You can either highlight duplicate values by percentage similarity or by sound similarity.

To highlight duplicate values by percentage similarity, go to Flookup > Highlight duplicates > By percentage and to highlight duplicate values by sound similarity, go to Flookup > Highlight duplicates > By sound.

By Percentage

With this function, Flookup highlights duplicate values which have a specific minimum percentage similarity between them. The steps to highlight duplicates by this method are:

1. Select a range.
2. Find and click the menu item labelled "By percentage".
3. A prompt is displayed requesting the user to enter the column index to analyse and the desired minimum percentage similarity. If no user input is made, values which have a 100% similarity match between them will be found and the first column the selected range will be analysed.

All selected values with the specified percentage similarity between them will be highlighted yellow.

By Sound

With this function, Flookup highlights duplicate values based on sound similarity between the them. The steps to highlight duplicates by this method are:

1. Select a range.
2. Find and click the menu item labelled "By sound".
3. A prompt is displayed requesting the user to enter the column index to analyse. If no user input is made, the first column the selected range will be analysed.

All selected values with similar sounds will be highlighted aqua.

DELETE DUPLICATE VALUES

Flookup can be used to delete duplicates in Google Sheets. You can either delete duplicates by percentage similarity or by sound similarity.

To delete duplicates by percentage similarity, go to Flookup > Delete duplicates > By percentage and to delete duplicates by sound similarity, go to Flookup > Delete duplicates > By sound.

By Percentage

With this function, Flookup finds and deletes selected rows that contain duplicate values with a specific minimum percentage similarity between them. The steps to delete duplicates by this method are:

1. Select values in a range.
2. Find and click the menu item labelled "By percentage".
3. A prompt is displayed requesting the user to enter the column index to analyse and the desired minimum percentage similarity. If no user input is made, values which have a hundred percent similarity match between them will be found and the first column the selected range will be analysed.

All selected rows containing duplicate values, with the specified percentage similarity between them, will be deleted.

By Sound

With this function, Flookup deletes selected rows that contain duplicate values based on the sound similarity between them. The steps to delete rows by this method are:

1. Select a range.
2. Find and click the menu item labelled "By sound".
3. A prompt is displayed requesting the user to enter the column index to analyse. If no user input is made, the first column the selected range will be analysed.

All selected rows containing values with similar sounds will be deleted.