Help with maths-stuff - Leeds Rocksoc



		Home » Forums » General » Questions » Help with maths-stuff Login or register to post comments 9 replies [Last post] Thu, 26/03/2009 - 19:25 MistressPurkle Offline Joined: 09/12/2006 I'm currently finishing off my dissertation and I think I've got most of the maths and data analysis stuff down. But as I haven't done most of this stuff since I left school (art degrees aren't big on teaching data analysis techniques), I was hoping I might be able to check with someone that I'm doing it right? Firstly, could someone explain to me what an r-squared value tells you about a correlation? I think I have it, but I'd like to read an explanation in normal English before I'm sure. Secondly does anyone know where I can find critical value tables for a single tailed test with Spearman's RHO? Lastly, please don't judge me I was never any good at maths. __________________ My name is Ame Top Login or register to post comments Thu, 26/03/2009 - 20:04 #1 BY TOR Offline Joined: 15/10/2006 I do engineering, and i am therefore very good at maths. However i haven't a clue what any of that stuff you were just talking about is. So i don't judge you for it. Top Login or register to post comments Thu, 26/03/2009 - 20:28 #2 Hunter Offline Joined: 26/09/2005 It's not maths, it's stats The difference between maths and stats is like the difference between real and imaginary numbers. They both look similar, but some are completely made up. __________________ They say only the good die young. If that works both ways, I'm immortal. The First Rule of Tautology Club is the first rule of Tautology Club. Top Login or register to post comments Thu, 26/03/2009 - 20:45 #3 darkish_angel87 Offline Joined: 17/10/2005 You have to do maths in an art degree? The mind boggles! __________________ "This racist lady won't let us play catch!" Top Login or register to post comments Thu, 26/03/2009 - 20:57 #4 flash Offline Joined: 22/09/2006 Shall we move on from the slaging off and leave this for someone who knows and can help her. __________________ Remember kids, all of lifes problems can be solved with enough alcohol Top Login or register to post comments Thu, 26/03/2009 - 21:33 #5 MistressPurkle Offline Joined: 09/12/2006 S'ok. You don't really -have- to do much maths in art, I just like over-complicating things for myself. Or statistics as the case may be. Though I must admit, I always thought stats came under the all-encompassing title of maths as one of it's sub-sections? __________________ My name is Ame Top Login or register to post comments Thu, 26/03/2009 - 21:46 #6 Miffy Offline Joined: 19/03/2005 digs out old stat notes, then pokes wiki From what I've found, the r squared value is the coefficient of determination, and wiki tells me this gives you the goodness of fit, basically how well your model predicts your data. 1.0 would be a perfect fit. http://en.wikipedia.org/wiki/Goodness_of_fit As for the Spearman's RHO, I don't know that name, but I found these if they help: http://en.wikipedia.org/wiki/Spearman's_rank_correlation_coefficient http://www.geog.uvic.ca/geog226/frLab8.html I don't know if that table is good enough, I can try again! PS Hunter was right, everyone hates stats for good reason __________________ Leeds Rock Society's 'Most Overseas Member' 2005-06 Leeds Rock Society General Committee 2006-07 Leeds Rock Society Grand Mistress Of The Ball 2007 Leeds Rock Society Little London Bravery Award 2006-07 Top Login or register to post comments Fri, 27/03/2009 - 04:15 #7 BY TOR Offline Joined: 15/10/2006 flash wrote: Shall we move on from the slaging off and leave this for someone who knows and can help her. I wasn't slagging her off!!! Stats is a type of maths, but not really. Thats why stats teachers are always grumpy sods, i've never had a happy stats teacher. Top Login or register to post comments Fri, 27/03/2009 - 14:20 #8 ring_leader_uk Offline Joined: 26/09/2005 MistressPurkle wrote: I'm currently finishing off my dissertation and I think I've got most of the maths and data analysis stuff down. But as I haven't done most of this stuff since I left school (art degrees aren't big on teaching data analysis techniques), I was hoping I might be able to check with someone that I'm doing it right? Firstly, could someone explain to me what an r-squared value tells you about a correlation? I think I have it, but I'd like to read an explanation in normal English before I'm sure. Secondly does anyone know where I can find critical value tables for a single tailed test with Spearman's RHO? Lastly, please don't judge me I was never any good at maths. That's not maths. It's statistics. It's a pseudo maths designed to make data look like something it is not... Seriously, I swear they just make stuff up in stats. No logic! Joelxxx __________________ My nipples are no longer orgasming, they are far too tired for that. Top Login or register to post comments Sun, 29/03/2009 - 20:17 #9 MistressPurkle Offline Joined: 09/12/2006 Well, again, art-student, Joel, it all makes sense really. Thanks to those that have tried to help. It seems like I've got it right and Rob suggested a book I can find the values in, so all is well. __________________ My name is Ame Top Login or register to post comments Login or register to post comments

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