Re: [libreoffice-users] macro to only change month

At 14:26 27/01/2018 -0700, B J Lockie wrote:
> I keep a spreadsheet with a monthly budget. Each month I copy a 
> month to make a new month. I use Fill to change the dates to the new 
> month. This is not ideal because sometimes there are 2 rows for the 
> same day and Fill changes the 2nd day. I need a macro just to change 
> the month and not the day.
>
> Eg.
> Jan 1 2018 | debit | ...
> Jan 1 2018 | credit card | ...
> Jan 2 2018 | credit card | ...
>
> Using Fill to get a new section for Feb results in:
> Feb 1 2018 | debit | ...
> Feb 2 2018 | credit card | ...
> Feb 3 2018 | credit card | ...
>
> What I want is:
> Feb 1 2018 | debit | ...
> Feb 1 2018 | credit card | ...
> Feb 2 2018 | credit card | ...

You don't say what is actually in your date column: text or proper 
date values? I'm trusting you have the latter.
o Make your copy.
o In a spare column, enter =Xn+31 - where Xn is the first date value. 
Don't worry about the formatting of that cell.
o Fill down that new column to create a set of new (February) dates 
corresponding to your January dates.
o Cut (or copy) the new values and paste them back over the original 
date column, but using Edit | Paste Special... (or Ctrl+Shift+V) 
instead of ordinary Paste and ensuring that both Formulas and Formats 
are *not* ticked in the Paste Special dialogue.

Using the formula =Xn+31, you clearly need to modify the 31 to the 
length of whichever month you are extending from. Alternatively, you 
could use other formulae to do this automatically, such as:
=DATE(YEAR(Xn);MONTH(Xn)+1;DAY(Xn))
or
=Xn+DAY(EOMONTH(Xn;0))

These formulae should roll over year ends appropriately, but in any 
case, you will need to reduce or extend each month's rows to account 
for different lengths of months, of course.

A macro? Is it worth it? That is left as an exercise for the reader!

I trust this helps.

Brian Barker


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