+ Reply to Thread
Results 1 to 4 of 4

Cluster or correlation algorithm with large table

  1. #1
    Forum Contributor
    Join Date
    08-03-2012
    Location
    london, england
    MS-Off Ver
    Excel 2003
    Posts
    120

    Cluster or correlation algorithm with large table

    Hi guys,
    I have got a large microsoft access table with around 4 million rows. These 4 million rows are grouped in such a way that every 60 row one specific group is formed.

    I need an algorithm that allows me to search for a specific group that has similar rows to the search query. The search query will be always 60 rows.

    Does anyone have any ideas?

    thanks

  2. #2
    Forum Moderator alansidman's Avatar
    Join Date
    02-02-2010
    Location
    Steamboat Springs, CO
    MS-Off Ver
    MS Office 365 Version 2405 Win 11 Home 64 Bit
    Posts
    23,895

    Re: Cluster or correlation algorithm with large table

    How data is stored in a table is not relative in a database. You accumulate, filter and sort data through criteria in key fields in queries and reports. Trying to extract data by location in a table is not viable. Perhaps you should give us more information about your table and the specific data you wish to group and then we may be able to offer up a solution.

    Storing data in a table in particular manner is a spreadsheet concept and not a data base concept. You need to let go of the spreadsheet concepts when working with databases.
    Alan עַם יִשְׂרָאֵל חַי


    Change an Ugly Report with Power Query
    Database Normalization
    Complete Guide to Power Query
    Man's Mind Stretched to New Dimensions Never Returns to Its Original Form

  3. #3
    Forum Contributor
    Join Date
    08-03-2012
    Location
    london, england
    MS-Off Ver
    Excel 2003
    Posts
    120

    Re: Cluster or correlation algorithm with large table

    I would love to upload an example but I cannot upload files from microsoft access to this forum. Is there a reason why?

  4. #4
    Forum Moderator alansidman's Avatar
    Join Date
    02-02-2010
    Location
    Steamboat Springs, CO
    MS-Off Ver
    MS Office 365 Version 2405 Win 11 Home 64 Bit
    Posts
    23,895

    Re: Cluster or correlation algorithm with large table

    You can. Here is how. Run a compact and repair. Then run a zip program to zip and compress the file. Upload the zipped file. Do not try to upload the whole file as it may be to big for the forum. Select a representative sample to include.

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Calculating correlation scores for segments of a large amount of data
    By wrf_89 in forum Excel Formulas & Functions
    Replies: 4
    Last Post: 07-19-2013, 02:46 PM
  2. Pivot Table Cluster Column Dates
    By j1800collett in forum Excel Charting & Pivots
    Replies: 0
    Last Post: 04-02-2013, 10:01 AM
  3. Replies: 1
    Last Post: 08-06-2012, 12:59 AM
  4. multiple correlation calculations in large worksheet
    By grantpet in forum Excel Programming / VBA / Macros
    Replies: 0
    Last Post: 04-13-2011, 06:12 AM
  5. VBA to loop correlation between two arrays in large data set
    By amedhussaini in forum Excel Programming / VBA / Macros
    Replies: 1
    Last Post: 08-28-2009, 08:20 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Search Engine Friendly URLs by vBSEO 3.6.0 RC 1