How to optimize Index Match , for large sets of data ?

[asweare]

Hello
I have formula that's working fine in small data but now I have to use in a large data set so I really need a way to optimize the formula.


the table is like this,

[TABLE="class: cms_table, width: 500"]
<tbody>[TR]
[TD]Ref[/TD]
[TD]Name[/TD]
[TD]Height[/TD]
[TD]Strength[/TD]
[TD]Weight[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]A[/TD]
[TD]150[/TD]
[TD]120[/TD]
[TD]60[/TD]
[/TR]
[TR]
[TD]2[/TD]
[TD]B[/TD]
[TD]150[/TD]
[TD]120[/TD]
[TD]60[/TD]
[/TR]
[TR]
[TD]3[/TD]
[TD]C[/TD]
[TD]110[/TD]
[TD]10[/TD]
[TD]60[/TD]
[/TR]
[TR]
[TD]4[/TD]
[TD]D[/TD]
[TD]180[/TD]
[TD]200[/TD]
[TD]80[/TD]
[/TR]
</tbody>[/TABLE]




and When I tried to look for
Ref 1's height.

using index and match


=index([Height],match(Search Cell Number, Ref)


and I get the right one.

https://drive.google.com/open?id=1tip-jl5Y0e6LWJJIyS3B8r97hqSmz_uS

please help thanks all for reading my post

 

[asweare]

you can check out my table in google drive. Open with excel with more detail with the formula I am using.
I really need to optimize this to run faster.
it is so slow to work with for working with such large data

 

[Fluff]

Cross posted https://www.excelforum.com/excel-pr...imize-index-match-for-large-sets-of-data.html

While we do not prohibit Cross-Posting on this site, we do ask that you please mention you are doing so and provide links in each of the threads pointing to the other thread (see rule 13 here along with the explanation: Forum Rules).
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[SpillerBD]

Not much that can help when using worksheet functions.
If building a new table and adding to a table where the calculation is done once, then run the calculations and convert to values.
PowerQuery (GetAndTransform) does this to an extent too, though is much easier to update. Can update to anew table to maintain most worksheet methods.

 

[asweare]

sorry about this,
https://www.excelforum.com/excel-pr...match-for-large-sets-of-data.html#post5034729

i posted similar question before this, without knowing the details.

still i haven't got the answer i need it,

if it is okay I really like to get some help thank you.

 

[Mentor82]

sorry about this,
https://www.excelforum.com/excel-pr...match-for-large-sets-of-data.html#post5034729

i posted similar question before this, without knowing the details.

still i haven't got the answer i need it,

if it is okay I really like to get some help thank you.

Hi,
You cannot opimize the funcions itself, because excel uses it on the cells level and everytime you change sth in the cel, excel calculates all the formuals. In my opinion, you should either use PowerBI tool or write a macro for fetching the values from one table to another. However, in order to have the makro very fast running, you should use arrays for both tables in order to put the data into RAM and search for the values in arrays not on the object level (for i, for each etc). Having calculation in arrays will very optimize your work even on large amount of data.


Regards,
Sebastian