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Dear friends, suppose i have two datasets: A and B A: id<-1:6 x<-c(1,2,3,4,5,6) y<-c(2,4,6,8,3,2) xy<-data.frame(id,x,y) B m<-c(1,1,3,3,5,5) n<-c(2,2,6,6,3,3) mn<-data.frame(m,n) Now, i want to perfomr two tasks: 1. get a subset of B,no duplicate values,: C: m n 1 2 3 6 5 3 2.Extract the values in A on the conditions that x=m and y=n the results should be: id x y 1 1 2 3 3 6 5 5 3 Thanks very much! -- Kind Regards, Zhi Jie,Zhang ,PHD Department of Epidemiology School of Public Health Fudan...

...e out where to host it. I am very tempted to host it on google''s app engine. you get a ton of space, band width, and processor all for free! I was hoping to get some advice as to what people think about deplying on the app engine. Would it better to wait until ruby is supported? Are there perfomrance issues with using JRuby? What would happen if ruby were supported in the future, would transfering be a pain?

...PI. Dhould the driver be modified to not return battery.charge if the UPS returns 0xFF? Are there other variables that are affected? (I don't think the IDG400 is covered in the protocol documentation that the NUT project received a while back.) > > For the point number 2, as we know NUT perfomrs the shutdown after battery low signal with a delay of 5 seconds as specified in the FINALDELAY. > Is this correct? Right, NUT tells the computer to shut down, but it also typically sends a shutdown signal to the UPS. Does the IDG400 also respond to the same shutdown command as others?

Hi, for zfs raidz1, I know for random io, iops of a raidz1 vdev eqaul to one physical disk iops, since raidz1 is like raid5 , so is raid5 has same performance like raidz1? ie. random iops equal to one physical disk''s ipos. Regards Victor -- This message posted from opensolaris.org

...PI. Dhould the driver be modified to not return battery.charge if the UPS returns 0xFF? Are there other variables that are affected? (I don't think the IDG400 is covered in the protocol documentation that the NUT project received a while back.) > > For the point number 2, as we know NUT perfomrs the shutdown after battery low signal with a delay of 5 seconds as specified in the FINALDELAY. > Is this correct? Right, NUT tells the computer to shut down, but it also typically sends a shutdown signal to the UPS. Does the IDG400 also respond to the same shutdown command as others? ------...

...lda)$error ceLOOB[i]<-errorest(ytrain ~., data=mydata, model=lda, estimator=c("cv"), est.para=control.errorest(k=cv.k,nboot=B), predict=mypredict.lda)$error They worked. However, as I didn't specify "boot" in estimator, I am wondering if "bootstrap" is still perfomred. I set nboot=B in est.para. Thanks in advance. Jenny

...pposed to be doing is happening. Again this box serves many operations on the network and all except samba is working. So I stop samba via samba.sh stop from the rc.d folder and I do a ps -x and there is several smbd processes running still (about 30 or so) . I restart samba since the server is perfomring normaly for other operations. I examine the samba log files and they say all is well, but, still no logons occuring from win9x boxes. After about an hour of trying to get samba restarted I reluctantly took the server down and upon a reboot all is well again. I have no idea what would cause...

When I copy an old file to a share the motification time is not changed. Ok, the file has not been modified but since it is new to this share I like to change it's time to the copy time! There MUST be an option to do this!But I haven't found it yet :( Can anyone help? -- Torsten