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EXAMPLE - IPTOINT Function

This examples illustrates how you can convert IP addresses to numeric values for purposes of comparison and sorting.

Functions:

Item

Description

IPTOINT Function

Computes an integer value for a four-octet internet protocol (IP) address. Source value must be a valid IP address or a column reference to IP addresses.

IPFROMINT Function

Computes a four-octet internet protocol (IP) address from a 32-bit integer input.

Source:

Your dataset includes the following values for IP addresses:

IpAddr

192.0.0.1

10.10.10.10

1.2.3.4

1.2.3

http://12.13.14.15

https://16.17.18.19

Transformation:

When the above data is imported, the application initially types the column as URL values, due to the presence of the http:// and https:// protocol identifiers. Select the IP Address data type for the column. The last three values are listed as mismatched values. You can fix the issues with the last two entries by applying the following transform, which matches on both http:// and https:// strings:

Transformation Name

Replace text or pattern

Parameter: Column

IpAddr

Parameter: Find

`http%?://`

Parameter: Replace with

''

注意

The %?Wrangle matches zero or one time on any character, which enables the matching on both variants of the protocol identifier.

Now, only the 1.2.3 value is mismatched. Perhaps you know that there is a missing zero at the end of it. To add it back, you can do the following:

Transformation Name

Replace text or pattern

Parameter: Column

IpAddr

Parameter: Find

`1.2.3[end]`

Parameter: Replace with

'1.2.3.0'

Parameter: Match all occurrences

true

All values in the column should be valid for the IP Address data type. To convert these values to their integer equivalents:

Transformation Name

New formula

Parameter: Formula type

Single row formula

Parameter: Formula

IPTOINT(IpAddr)

Parameter: New column name

'ip_as_int'

You can now manipulate the data based on this numeric key. To convert the integer values back to IP addresses for checking purposes, use the following:

Transformation Name

New formula

Parameter: Formula type

Single row formula

Parameter: Formula

IPFROMINT(ip_as_int)

Parameter: New column name

'ip_check'

Results:

X

ip_as_int

ip_check

192.0.0.1

3221225473

192.0.0.1

10.10.10.10

168430090

10.10.10.10

1.2.3.4

16909060

1.2.3.4

1.2.3.0

16909056

1.2.3.0

12.13.14.15

202182159

12.13.14.15

16.17.18.19

269554195

16.17.18.19