Re: [libreoffice-users] Summing a cell value by a background color cell style

On 03/25/2013 11:08 PM, Brian Barker wrote:
> At 15:16 25/03/2013 +0100, Krunoslav Šebetić wrote:
> > I need to make a Calc table. Table is "structured" vertically. Tables 
> > sums number values from columns in the last row of table. Every 
> > column stands for itself, and has nothing to do with other columns.  
> > But values are entered in column by different variables. I have set 
> > different cell background color for every variable. Is there a way to 
> > tell Calc to sum, divide or multiply values by the cell style color?
>
> Not that I know of.  But there is an easier way.  I'm guessing that 
> you have set the background colours manually.  Instead of doing that, 
> why not create another column to indicate the condition (I'm not sure 
> what you mean by "entered ... by different variables")?  You can then 
> use the values in the new column to control the SUMIF() to form your 
> selective sums.  But you can also use the values in the new column in 
> "conditional formatting" to set the background colours of the cells in 
> the first place.  This is a much more reliable technique.

Lets say I am collecting wether temperature (but Im not) values and Im 
doing it five time a day. Lets say that every time (of five) I need to 
know is that (enterd) value above or bellow the average for this time a 
day, month and year. In that case I would have three type of (I call 
them) values which can not be predicted and thus i doubt I can set a 
secend - or the secend one would be bigger and far more complex that the 
primary one.

Now, imagine you need sum only the values (temperature) that is above 
average for this time of the year and belove average of that month. What 
is above the average of the year is not nessery below the average of the 
month and vice verse. So I must say that I am now shure if sumif can 
handle that. I do not need sum numbers higher or lower from x, I need 
sum number collected from the real world and those are quite rondom.

> If you wish, the extra columns can be hidden or displaced to another 
> part of the sheet or even to another sheet, so they do not need to be 
> immediately visible or to print along with the values you do need to 
> see.  It may not even be necessary to create new columns, if the 
> conditions they need to contain could be derived directly from 
> whatever is their source.
>
> I trust this helps.
>
> Brian Barker

It helps, thank you. This sure is the way to go but it can get quite 
complicated with time.

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