My Math Forum > Math relationship between sets of numbers

 Math General Math Forum - For general math related discussion and news

 June 28th, 2015, 10:14 PM #1 Newbie   Joined: Jun 2015 From: australia Posts: 2 Thanks: 0 relationship between sets of numbers Hey guys, Im trying to find a pattern to identify the relationship between some numbers I have: unknown: 393260 size: 26623 x: 67 y: 184 unknown: 403669 size: 27449 x: 69 y: 191 unknown: 407177 size: 27852 x: 71 y: 194 unknown: 410336 size: 28125 x: 73 y: 196 unknown: 415528 size: 28575 x: 75 y: 200 unknown: 423787 size: 29218 x: 78 y: 205 unknown: 429183 size: 29696 x: 80 y: 209 unknown: 432962 size: 29941 x: 81 y: 211 unknown: 435455 size: 30089 x: 81 y: 212 unknown: 449949 size: 30908 x: 82 y: 214 unknown: 454742 size: 31276 x: 84 y: 217 unknown: 458611 size: 31642 x: 86 y: 220 unknown: 461507 size: 31887 x: 88 y: 222 unknown: 467154 size: 32298 x: 90 y: 225 I am interested in finding out a formula for creating the "unknown" variable for a give size. I am not sure if the x,y variable are necessary does anyone have any idea? thanks in advance.
 June 29th, 2015, 05:57 AM #2 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 937 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms Some crunching with R suggests that all of the variables positively correlate with each other but x is mostly redundant with the others, so a good model is (apparently) unknown ~= 35525.99 + 21.78 * size - 1208.84 * y Code: > unknown <- c(393260, 403669, 407177, 410336, 415528, 423787, 429183, 432962, 435455, 449949, 454742, 458611, 461507, 467154) > size <- c(26623, 27449, 27852, 28125, 28575, 29218, 29696, 29941, 30089, 30908, 31276, 31642, 31887, 32298) > x <- c(67, 69, 71, 73, 75, 78, 80, 81, 81, 82, 84, 86, 88, 90) > y <- c(184, 191, 194, 196, 200, 205, 209, 211, 212, 214, 217, 220, 222, 225) > df <- data.frame(unknown,size,x,y) > summary(lm.out <- lm(unknown ~ size + y)) > lm.out > lm.resid <- resid(lm.out) > plot(unknown, lm.resid)
 June 29th, 2015, 07:49 PM #3 Newbie   Joined: Jun 2015 From: australia Posts: 2 Thanks: 0 I checked the formula out, but unfortunately it generates "unknown" values close to, but not quite exact. great piece of software though! thanks for your help.
July 1st, 2015, 08:07 AM   #4
Global Moderator

Joined: Nov 2006
From: UTC -5

Posts: 16,046
Thanks: 937

Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms
Quote:
 Originally Posted by dazedAndConfused I checked the formula out, but unfortunately it generates "unknown" values close to, but not quite exact.
Right. Unless you very, very badly overfit the data you won't get exact matches.

 Tags numbers, relationship, sets

relationship between numbers

Click on a term to search for related topics.
 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post ziggy Algebra 11 February 14th, 2015 11:42 PM asgharshabro Elementary Math 5 September 7th, 2014 07:10 AM tbillion Applied Math 17 September 5th, 2012 06:13 AM XmathY Number Theory 5 April 22nd, 2012 09:42 AM Hero Advanced Statistics 3 October 20th, 2010 02:03 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top