At 22:57 22/01/2013 +0100, Kolbjørn Stuestøl wrote:
Is there any way to find the first occurrence of
a number less (or greater) than a given number
in an unsorted array or a column?
Example: A1:A31 contains a list of temperatures
a given month. I would like to find the first
day the temperature is below 0 degrees (metric).
What happens if there is no day in the month when
the temperature was negative? Let's say you want
the value zero for the resulting day number in this case.
This is a little messy, but it works:
o In B1, enter =A1<0 and fill it down the column
to B31. This generates TRUE for your negative values and FALSE otherwise.
o In your result cell, enter
=N(MATCH(TRUE;B1:B31;0)) . The MATCH() function
searches for the first TRUE value in the column B
values and returns the relative position in the
array of the first match. (Note that this is not
necessarily the row number, though will be in
your example.) This would return the #N/A error
if there is no negative temperature; the N()
function makes no change to real dates but converts this error to zero.
You may choose to hide column B, of course - or
you could put its values away somewhere else on
the sheet or even on a different sheet.
Incidentally, you are unlikely to get
temperatures "below 0 degrees (metric)", as the
SI temperature scale is kelvin, and its zero is
the absolute zero of temperature! But yes: I
appreciate that you mean the celsius scale. ;^)
I trust this helps.
For unsubscribe instructions e-mail to: firstname.lastname@example.org
Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette
List archive: http://listarchives.libreoffice.org/global/users/
All messages sent to this list will be publicly archived and cannot be deleted
Impressum (Legal Info)
: Unless otherwise specified, all text and images
on this website are licensed under the
Creative Commons Attribution-Share Alike 3.0 License
This does not include the source code of LibreOffice, which is
licensed under the Mozilla Public License (MPLv2
"LibreOffice" and "The Document Foundation" are
registered trademarks of their corresponding registered owners or are
in actual use as trademarks in one or more countries. Their respective
logos and icons are also subject to international copyright laws. Use
thereof is explained in our trademark policy