Display date if conditions are true

[Joeywc]

Hello,
In colum a I have dates. In colum H I have summarized data in table. I want to keep from having to enter data everytime.
Ie... h9 has a value of a date, I want h10 h11 and so on to display previous h+8 only if colum a has dates according.....
H9 is 12/7/18.
H10 needs to be 12/15/18 only if a2:a100 has a date on or after h9+8.
I tried =if(a2:a100>=h9+8;h9+8;"") but getting blank results

[Zizi64]

Please upload your ODF type sample file here.

[Joeywc]

I want to be able for the wk start to be every 8 days and display only if colum a has supporting dates

[mikele]

Hi,

Code: Select all   Expand viewCollapse view

=IF(COUNTIF($A$2:$A$100;">="&(H9+8));H9+8;"")

[Joeywc]

That gives me a value of 1/7/00

[mikele]

Hello,
me not ...

[Zizi64]

That gives me a value of 1/7/00

Then the H9 has a zero value in YOUR file. For example it contains a textual data with zero value.

[Joeywc]

Got it to work when h9 has date... but when fill down if h10 is blank then h11 thru h61fills with bad data... so on and so forth... shouldn't the others be blank? Yes It uses same formula except h9 become h10+8, h11+8... and so on. If h10 is blank then so should h11.... and so on right?

[Zizi64]

Got it to work when h9 has date... but when fill down if h10 is blank then h11 thru h61fills with bad data...

Try the
=IF(ISBLANK(H9;"";your_condition))
formula

[Joeywc]

Your_condition? Would that be the part? Or start with if(countif?

[Joeywc]

=IF(ISBLANK(H9;"";IF(COUNTIF( $A$2:$A$100;">="&(H9+8));H9+8;"")).... gives err508

[robleyd]

508
Error: Pair missing
Missing bracket, for example, closing brackets, but no opening brackets
Count your brackets. Use your F1- Help to find the meaning of the error messages.

[Zizi64]

You need three closeing brackets at the end of the formula. One for the IF(), ant another for ISBLANK() and the third for your condition.

[Joeywc]

Code works for h10 but same code(replacing h9 each line) still shows bad data? I dont know why it works for one but not the rest( h11,h12... h62)... 52 weeks starting with h9

[Zizi64]

Please upload your actual version of your ODF type sample file here.

[robleyd]

If you are new to spreadsheets, you may find the following to be useful resources.

[Tutorial] Ten concepts that every Calc user should know

OpenOffice Spreadsheet Tutorial for Beginners with Examples

And I suspect directly related to your question - [Tutorial] Absolute, relative and mixed references

[Joeywc]

Please upload your actual version of your ODF type sample file here.

see the dates in h11,h12,h13 are off but h10 is right

[RusselB]

H11 is off due to the fact that the formula for calculating the date refers to H10, which is blank, thus returning the equivalent of a 0 value for other calculations.
H12 and H13 have similar problems, but they can all be traced back to the fact that you have a blank, thus a 0 value, in H10.

[Joeywc]

Correct. That's my issue. I would like the others be blank if the one before is blank

[Villeroy]

Correct. That's my issue. I would like the others be blank if the one before is blank

This implies a loss of information.

[Joeywc]

I thought that's the reason for the if,countif code. It only supposed to calculate if there's value in row above. Otherwise leave blank

[RusselB]

Try

Code: Select all   Expand viewCollapse view

=if(isnum(H9);H9+8;"")

instead of the code you're currently using

[Zizi64]

I thought that's the reason for the if,countif code. It only supposed to calculate if there's value in row above. Otherwise leave blank

There are many functions to examine the content of a cell:

ISBLANK()
ISNUMBER()
ISNA()
ISERROR()
ISERR()
ISEVEN()
ISODD()
...and more.

Read the HELP, and use the function what you need for your task.