Clarkson, Christopher
2015-Nov-12 23:06 UTC
[R] student looking for help with assignment in R
Hello, I am a student and I only have basic knowledge of R. I have been given the task of having to monitor cells' migration in 2 dimensions. I have been given 2 files one containing the the X-coordinates and the other contains the Y-coordinates of the cells. There are 50 cells and there movement both longitudinally and latitudinally has been documented 100 times- to determine their overall trajectories. I have tried to get help on both Stackexchange Overflow and biostars.org but since it is not classic bioinformatics neither have yielded much success. I was hoping someone could take a look at the R code I have tried thus far to see where I'm going wrong. Attached are the files and the r-script that I have been trying to run.... any changes in strategy would be welcome especially if they are more practical and simpler than what I currently have. Thanks. If this is not the type of message that I should send to you can you recommend somewhere else that I can get help... -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: dataContition01PosY.txt URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20151112/f04d297d/attachment.txt> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: dataCondition01PosX.txt URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20151112/f04d297d/attachment-0001.txt>
Hi
What does it mean "to monitor". If you want to compute path length for
each cell it seems to me that it is a simple problem of trigonometry
sqrt(a^2+b^2) = c
is a length of a segment between two points. a and b can be computed by
differencing x and y coordinates.
If I read your data
tempx<-read.table("clipboard")
tempy<-read.table("clipboard")
I can make a plot
plot(tempx[,1], tempy[,1])
lines(tempx[,1], tempy[,1])
or
plot(tempx[,1], tempy[,1])
lines(tempx[1:3,1], tempy[1:3,1])
to see how one cell is moving
However it seems to me that your assignment is a homework and there is
no-homework policy on this list, so it is enough from me for the time being.
Sorry if it is not homework but anyway as a poor chemist I cannot help you
further.
Besides, there was no r script attached.
Cheers
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
> Clarkson, Christopher
> Sent: Friday, November 13, 2015 12:07 AM
> To: r-help at R-project.org
> Subject: [R] student looking for help with assignment in R
>
> Hello,
>
> I am a student and I only have basic knowledge of R. I have been given
> the task of having to monitor cells' migration in 2 dimensions. I have
> been given 2 files one containing the the X-coordinates and the other
> contains the Y-coordinates of the cells. There are 50 cells and there
> movement both longitudinally and latitudinally has been documented 100
> times- to determine their overall trajectories.
>
> I have tried to get help on both Stackexchange Overflow and
> biostars.org but since it is not classic bioinformatics neither have
> yielded much success.
>
> I was hoping someone could take a look at the R code I have tried thus
> far to see where I'm going wrong.
>
> Attached are the files and the r-script that I have been trying to
> run.... any changes in strategy would be welcome especially if they are
> more practical and simpler than what I currently have.
>
> Thanks.
>
> If this is not the type of message that I should send to you can you
> recommend somewhere else that I can get help...
________________________________
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Hi Christopher, If you want to plot the movements of cells, perhaps a look at the help page for color.scale.lines (plotrix) will get you started. Jim On Fri, Nov 13, 2015 at 8:47 PM, PIKAL Petr <petr.pikal at precheza.cz> wrote:> Hi > > What does it mean "to monitor". If you want to compute path length for > each cell it seems to me that it is a simple problem of trigonometry > > sqrt(a^2+b^2) = c > > is a length of a segment between two points. a and b can be computed by > differencing x and y coordinates. > > If I read your data > tempx<-read.table("clipboard") > tempy<-read.table("clipboard") > > I can make a plot > plot(tempx[,1], tempy[,1]) > lines(tempx[,1], tempy[,1]) > > or > > plot(tempx[,1], tempy[,1]) > lines(tempx[1:3,1], tempy[1:3,1]) > > to see how one cell is moving > > However it seems to me that your assignment is a homework and there is > no-homework policy on this list, so it is enough from me for the time > being. Sorry if it is not homework but anyway as a poor chemist I cannot > help you further. > > Besides, there was no r script attached. > > Cheers > Petr > > > > -----Original Message----- > > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of > > Clarkson, Christopher > > Sent: Friday, November 13, 2015 12:07 AM > > To: r-help at R-project.org > > Subject: [R] student looking for help with assignment in R > > > > Hello, > > > > I am a student and I only have basic knowledge of R. I have been given > > the task of having to monitor cells' migration in 2 dimensions. I have > > been given 2 files one containing the the X-coordinates and the other > > contains the Y-coordinates of the cells. There are 50 cells and there > > movement both longitudinally and latitudinally has been documented 100 > > times- to determine their overall trajectories. > > > > I have tried to get help on both Stackexchange Overflow and > > biostars.org but since it is not classic bioinformatics neither have > > yielded much success. > > > > I was hoping someone could take a look at the R code I have tried thus > > far to see where I'm going wrong. > > > > Attached are the files and the r-script that I have been trying to > > run.... any changes in strategy would be welcome especially if they are > > more practical and simpler than what I currently have. > > > > Thanks. > > > > If this is not the type of message that I should send to you can you > > recommend somewhere else that I can get help... > > > ________________________________ > 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. > > In case that this e-mail forms part of business dealings: > - the sender reserves the right to end negotiations about entering into a > contract in any time, for any reason, and without stating any reasoning. > - if the e-mail contains an offer, the recipient is entitled to > immediately accept such offer; The sender of this e-mail (offer) excludes > any acceptance of the offer on the part of the recipient containing any > amendment or variation. > - the sender insists on that the respective contract is concluded only > upon an express mutual agreement on all its aspects. > - the sender of this e-mail informs that he/she is not authorized to enter > into any contracts on behalf of the company except for cases in which > he/she is expressly authorized to do so in writing, and such authorization > or power of attorney is submitted to the recipient or the person > represented by the recipient, or the existence of such authorization is > known to the recipient of the person represented by the recipient. > ______________________________________________ > 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.[[alternative HTML version deleted]]