Custom Functions

Description

Post any examples of custom functions in this forum

My first custom function--the haversine formula

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Hi

my first post and a chance to say how useful i have found this site and the linked videos

I have recently been tasked with testing how far customers laddresses are from the business. I found a data base which had the longitude and latitude of every UK postcode,  armed with that information i came up with this custom function

Option ExplicitFunction getDistance(latitude1 As Double,longitude1 As Double,latitude2 As Double,longitude2 As Double) As DoubleDim earth_radius As DoubleDim Pi As DoubleDim deg2rad As Double

Function to generate identical numbering for each document number

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Hello Everyone,

I'm trying to create an equation in order generate an identical number for each document number included in a database. At the same time for next document number the numbering have also to be ascending. I try to better explain the situation in the attachment.
Many thanks to those who will help me.
Angelo

Function to generate restarting sequential number for each document number

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Hello Everyone,
It's my first time in this wonderful IDEA forum.
I'm blocked in my project since I cannot found a function (or other way) to create a sequential number that restart every time the document number changes. In attachment, a screenshot to better understanding.
So,I want that for document number "1310000000" in the column "POSTING_NUMBER" there will be "1" for all related lines; for document number "13100000001" in the column "POSTING_NUMBER" there will be "2" for all lines; and so in an ascending way for next document numbers.

RegEx

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HI,
I have a string like this:
AR 2016 INTREO Office roll-out - Preliminary Study
and I need to match the characters only having this result
AR INTREO Office roll out Preliminary Study

I have tried with
@RegExpr(CLIENT,"([^0-9-]+\$") returns INTREO Office roll-out - Preliminary Study
and
@RegExpr(CLIENT,"([^0-9-]+") returns AR

I have also to combine the other expression with "OR" operator but did not work.

Apply formula cell by cell

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I am trying to standardise a file like this:
Blank.jpg
I need to all the cell filled for further grouping.
I have tried with this formula:
@IF(MAIN_AGGREGATION == "",@GetPreviousValue("MAIN_AGGREGATION"),MAIN_AGGREGATION)
Unfortunately it works for the first 2 rows only of Column AAA.
How I can get it work as if IDEA creates a virtual value to look up to give fill the blank cells?

point comma

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Hi,
I'm looking for a formula what changes a character field (which includes digits with point "." for decimal number) to a numeric field with a comma "," (french presentation of numbers). I've tested @curval but I didn't suceed to have two digits after the comma. I don't understand why. Do you know a solution ?

Rounding date forward

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Hi,
I am looking to add a number of days to a given date to calculate an eligible date then round it to the first of the following month to get an entry date.
DOH: 3/5/2001
Eligible Date: 6/3/2001
Entry Date: 7/1/2001
The eligible date does not need to be an output, just the entry date.

I currently have:
@daystod(@DToDays(DOH)+90)
this is giving me the correct elibile date, but I cannot figure out how to round it to the first of the next month.

thanks!

dateParm

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Hi,
I am attempting to create two "dateParm"s without having to actually type both in an input box.  DateParm will be an inputbox (example, i type in "20181127")
DateParm1 should always be 4 days prior to "dateParm" .  How can i create a custom formula to make DateParm1 = dateParm - 4 days.
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