Date Lookup - closest match

[Clare1805]

I have a list of dates in a column with a value next to it as below:

<TABLE style="WIDTH: 143pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=190 border=0 x:str><COLGROUP><COL style="WIDTH: 69pt; mso-width-source: userset; mso-width-alt: 3364" width=92><COL style="WIDTH: 74pt; mso-width-source: userset; mso-width-alt: 3584" width=98><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext 0.5pt solid; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 69pt; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" width=92 height=17 x:num="38736">19/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext 0.5pt solid; BORDER-LEFT: windowtext; WIDTH: 74pt; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" width=98 x:num>65</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38740">23/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>90</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38742">25/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>113</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38743">26/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>123</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38747">30/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>196</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38748">31/01/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>174</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38750">05/02/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>6</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38754">06/02/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>19</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext 0.5pt solid; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 12.75pt; BACKGROUND-COLOR: white" height=17 x:num="38755">07/02/2006</TD><TD class=xl24 style="BORDER-RIGHT: windowtext 0.5pt solid; BORDER-TOP: windowtext; BORDER-LEFT: windowtext; BORDER-BOTTOM: windowtext 0.5pt solid; BACKGROUND-COLOR: white" x:num>22</TD></TR></TBODY></TABLE>

I need to create a lookup to find the closest date to the one I enter but it has to be within the month I specify (So in the example above, if I searched for 01/02/2006 I would want it to return the value for 05/02/06 even though the 31st Jan would be actually the closest date) Is there a way to do this?

Thanks!

 

[Domenic]

Assuming that A2:B10 contains the data, and D2 contains the date of interest, such as 01/02/2006, try...

=INDEX(B2:B10,MATCH(MIN(IF(A2:A10-DAY(A2:A10)+1=DATE(YEAR(D2),MONTH(D2),1),ABS(A2:A10-D2))),IF(A2:A10-DAY(A2:A10)+1=DATE(YEAR(D2),MONTH(D2),1),ABS(A2:A10-D2)),0))

...confirmed with CONTROL+SHIFT+ENTER, not just ENTER.

Hope this helps!

 

[Clare1805]

Thanks for the reply - I have tried this array formula but it is bringing a #NUM! error but I'm not sure why. I have checked the formats of all teh relevant cells and all the dates are formatted as dates and all numbers as numbers???

 

[Domenic]

Did you confirm the formula with CONTROL+SHIFT+ENTER? If done correctly, Excel will automatically place curly brackets {.....} around the formula. Also, do any of the cells within the data contain #NUM! ?