How can I count data points that lay outside of the main plot line? I have a plot in which most data points create a sigmoid line, but some are spread throughout the plot area, these points dont fit the curve. I would like to count them to know the ratio between the main curve and the data points that dont fit, any ideas? Thanks, Raz -- \m/ [[alternative HTML version deleted]]
PIKAL Petr
2016-Mar-29 09:14 UTC
[R] how can I count data points outside the main plot line?
Hi
Did you try residuals and/or influence.measures?
Cheers
Petr
-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of raz
Sent: Tuesday, March 29, 2016 10:51 AM
To: r-help at r-project.org
Subject: [R] how can I count data points outside the main plot line?
How can I count data points that lay outside of the main plot line?
I have a plot in which most data points create a sigmoid line, but some are
spread throughout the plot area, these points dont fit the curve. I would like
to count them to know the ratio between the main curve and the data points that
dont fit, any ideas?
Thanks,
Raz
--
\m/
[[alternative HTML version deleted]]
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PIKAL Petr
2016-Mar-30 07:42 UTC
[R] how can I count data points outside the main plot line?
Hi Raz Keep your responses to the rhelp list. Did you try residuals function? DNase1 <- subset(DNase, Run == 1) DNase1[12,3]<-0.1 fm1DNase1 <- nls(density ~ SSlogis(log(conc), Asym, xmid, scal), DNase1) resid(fm1DNase1) [1] -3.273213e-02 -3.173213e-02 -7.798226e-03 -4.798226e-03 -7.665433e-05 [6] 8.923346e-03 4.956802e-02 4.656802e-02 9.936101e-02 9.436101e-02 [11] 2.233609e-01 -6.956391e-01 1.334304e-01 1.634304e-01 -2.106923e-02 [16] -4.106923e-02 attr(,"label") 1] "Residuals" plot(resid(fm1DNase1)) You can use the threshold for selecting values departing from your model.> sum(abs(resid(fm1DNase1))>0.4)[1] 1> sum(abs(resid(fm1DNase1))>0.2)[1] 2> sum(abs(resid(fm1DNase1))>0.1)[1] 4>Cheers Petr From: raz [mailto:barvazduck at gmail.com] Sent: Wednesday, March 30, 2016 8:31 AM To: PIKAL Petr <petr.pikal at precheza.cz> Subject: Re: [R] how can I count data points outside the main plot line? Hi Petr, Thanks for your reply, if you have time can you elaborate more about your suggestions, I dont understand what you meant.. Thanks Raz On Tue, Mar 29, 2016 at 12:14 PM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote: Hi Did you try residuals and/or influence.measures? Cheers Petr -----Original Message----- From: R-help [mailto:r-help-bounces at r-project.org<mailto:r-help-bounces at r-project.org>] On Behalf Of raz Sent: Tuesday, March 29, 2016 10:51 AM To: r-help at r-project.org<mailto:r-help at r-project.org> Subject: [R] how can I count data points outside the main plot line? How can I count data points that lay outside of the main plot line? I have a plot in which most data points create a sigmoid line, but some are spread throughout the plot area, these points dont fit the curve. I would like to count them to know the ratio between the main curve and the data points that dont fit, any ideas? Thanks, Raz -- \m/ [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org<mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ________________________________ Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a jsou ur?eny pouze jeho adres?t?m. Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu. Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat. Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu. V p??pad?, ?e je tento e-mail sou??st? obchodn?ho jedn?n?: - vyhrazuje si odes?latel pr?vo ukon?it kdykoliv jedn?n? o uzav?en? smlouvy, a to z jak?hokoliv d?vodu i bez uveden? d?vodu. - a obsahuje-li nab?dku, je adres?t opr?vn?n nab?dku bezodkladn? p?ijmout; Odes?latel tohoto e-mailu (nab?dky) vylu?uje p?ijet? nab?dky ze strany p??jemce s dodatkem ?i odchylkou. - trv? odes?latel na tom, ?e p??slu?n? smlouva je uzav?ena teprve v?slovn?m dosa?en?m shody na v?ech jej?ch n?le?itostech. - odes?latel tohoto emailu informuje, ?e nen? opr?vn?n uzav?rat za spole?nost ??dn? smlouvy s v?jimkou p??pad?, kdy k tomu byl p?semn? zmocn?n nebo p?semn? pov??en a takov? pov??en? nebo pln? moc byly adres?tovi tohoto emailu p??padn? osob?, kterou adres?t zastupuje, p?edlo?eny nebo jejich existence je adres?tovi ?i osob? j?m zastoupen? zn?m?. This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients. If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system. If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner. The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email. 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Jestli?e jste obdr?el(a) tento e-mail omylem, informujte laskav? neprodlen? jeho odes?latele. Obsah tohoto emailu i s p??lohami a jeho kopie vyma?te ze sv?ho syst?mu. Nejste-li zam??len?m adres?tem tohoto emailu, nejste opr?vn?ni tento email jakkoliv u??vat, roz?i?ovat, kop?rovat ?i zve?ej?ovat. Odes?latel e-mailu neodpov?d? za eventu?ln? ?kodu zp?sobenou modifikacemi ?i zpo?d?n?m p?enosu e-mailu. 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