NO > aggregate(si[,7],list(si[,2],si[,1]),mean) Group.1 Group.2 x 1 0.0 D 212.5015448 2 0.2 D 200.5271137 3 0.4 D 191.5387529 4 0.6 D 131.5856218 5 0.8 D 16.4515798 6 1.0 D 0.9698699 7 0.0 F 211.6176036 8 0.2 F 199.5358336 9 0.4 F 179.1472057 10 0.6 F 70.3376311 11 0.8 F 25.0939253 12 1.0 F 0.9759778 13 0.0 I 199.1829674 14 0.2 I 188.8703456 15 0.4 I 147.5194562 16 0.6 I 18.1743204 17 0.8 I 0.9563789 18 1.0 I 0.9531993 19 0.0 L 95.1813009 20 0.2 L 95.1813009 21 0.4 L 92.3533476 22 0.6 L 47.1235041 23 0.8 L 9.4129464 24 1.0 L 0.9336508 25 0.0 S 95.1813009 26 0.2 S 91.4119070 27 0.4 S 81.9875960 28 0.6 S 11.3183831 29 0.8 S 1.8843307 30 1.0 S 0.9310779
for exemple, for the last line, I want aggregate to show me the number of lines with col1=1 and col2=S in stead of the mean. Regards 2011/10/22 Weidong Gu <anopheles...@gmail.com> > Is this waht you want? > > sci[,5][sci[,2]==0 & sci[,1]==L] > > Weidong > > On Sat, Oct 22, 2011 at 8:19 AM, Adel ESSAFI <adeless...@gmail.com> wrote: > > Hi, > > It is not what I want, but, thx anyway. > > Regards > > > > > > 2011/10/22 Weidong Gu <anopheles...@gmail.com> > >> > >> try this > >> > >> table(sci[,2]=0,sci[,1]=L) > >> > >> Weidong Gu > >> > >> On Sat, Oct 22, 2011 at 7:51 AM, Adel ESSAFI <adel.s...@imag.fr> wrote: > >> > Hello, > >> > is there any help please. > >> > Regards > >> > > >> > > >> > 2011/10/21 Adel ESSAFI <adeless...@gmail.com> > >> > > >> >> Hello > >> >> I am discovering R and I find it is really very powerful. > >> >> > >> >> However, I find some newbie difficulties. > >> >> > >> >> Here, I have a data frame with manu values that I want to calculate > the > >> >> frequency (the nomber of line) of the some criteria. > >> >> For exemple here, I want it to print the number of occurence where > >> >> sci[,2]=0 and sci[,1]=L. In my exemple, he is printing the number of > >> >> the > >> >> line in the result data frame. > >> >> however, I have at least 90 line with sci[,2]=0 and sci[,1]=L. > >> >> Thank you in advance for any input. > >> >> > >> >> > >> >> > aggregate(sci[,5],list(sci[,2],sci[,1]),frequency) > >> >> Group.1 Group.2 x > >> >> 1 0.0 L 1 > >> >> 2 0.2 L 1 > >> >> > >> >> > >> >> -- > >> >> PhD candidate in Computer Science > >> >> Address > >> >> 3 avenue lamine, cité ezzahra, Sousse 4000 > >> >> Tunisia > >> >> tel: +216 97 246 706 (+33640302046 jusqu'au 15/6) > >> >> fax: +216 71 391 166 > >> >> > >> > > >> > > >> > > >> > -- > >> > *PhD candidate in Computer Science > >> > Address > >> > 3 avenue lamine, cité ezzahra, Sousse 4000 > >> > Tunisia > >> > tel: +216 97 246 706 > >> > fax: +216 71 391 166* > >> > > >> > [[alternative HTML version deleted]] > >> > > >> > > >> > ______________________________________________ > >> > R-help@r-project.org mailing list > >> > 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. > >> > > >> > > >> > >> ______________________________________________ > >> R-help@r-project.org mailing list > >> 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. > > > > > > > > -- > > PhD candidate in Computer Science > > Address > > 3 avenue lamine, cité ezzahra, Sousse 4000 > > Tunisia > > tel: +216 97 246 706 (+33640302046 jusqu'au 15/6) > > fax: +216 71 391 166 > > > -- *PhD candidate in Computer Science Address 3 avenue lamine, cité ezzahra, Sousse 4000 Tunisia tel: +216 97 246 706 fax: +216 71 391 166* [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list 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.
