search for: b_flags

Given this data frame (a simplified, essential reproducible example) A<-c(8,7,10,1,5) A_flag<-c(10,0,1,0,2) B<-c(5,6,2,1,0) B_flag<-c(12,9,0,5,0) mydf<-data.frame(A, A_flag, B, B_flag) # this is my initial df mydf I want to get to this final situation i<-which(mydf$A_flag==0) mydf$A[i]<-NA ii<-which(mydf$B_flag==0) mydf$B[ii]<-NA

Do you mean like this: mydf <- within(mydf, { is.na(A)<- !A_flag is.na(B)<- !B_flag } ) > mydf A A_flag B B_flag 1 8 10 5 12 2 NA 0 6 9 3 10 1 NA 0 4 NA 0 1 5 5 5 2 NA 0 Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into

yes, it works, even if I do not really get how and why it's working the combination of logical results (could you provide some insights for that?) moreover, and most of all, I was hoping for a compact solution because I need to deal with MANY columns (more than 40) in data frame with the same basic structure as the simplified example I posted thanks m ----- Messaggio originale ----- Da:

...well, I don't think this is exactly the expected result (see my post) to be noted that the columns affected should be "A" and "B" thanks for the help max ----- Messaggio originale ----- Da: "Rui Barradas" <ruipbarradas at sapo.pt> A: "Massimo Bressan" <massimo.bressan at arpa.veneto.it>, "r-help" <r-help at

Hello, Try the following. icol <- which(grepl("flag", names(mydf))) mydf[icol] <- lapply(mydf[icol], function(x){ is.na(x) <- x == 0 x }) mydf # A A_flag B B_flag #1 8 10 5 12 #2 7 NA 6 9 #3 10 1 2 NA #4 1 NA 1 5 #5 5 2 0 NA Hope this helps, Rui Barradas On 11/22/2017 10:34 AM, Massimo Bressan

OPS, Sorry i did not read the post carfully. Mine will not work if you have zeros on columns A and B.. But you could modify it to work for specific columns i believe. EK On Wed, Nov 22, 2017 at 8:37 AM, Ek Esawi <esawiek at gmail.com> wrote: > Hi *Massimo,* > > *Try this.* > > *a <- mydf==0mydf[a] <- NAHTHEK* > > On Wed, Nov 22, 2017 at 5:34 AM, Massimo Bressan

Hi *Massimo,* *Try this.* *a <- mydf==0mydf[a] <- NAHTHEK* On Wed, Nov 22, 2017 at 5:34 AM, Massimo Bressan < massimo.bressan at arpa.veneto.it> wrote: > > > Given this data frame (a simplified, essential reproducible example) > > > > > A<-c(8,7,10,1,5) > > A_flag<-c(10,0,1,0,2) > > B<-c(5,6,2,1,0) > > B_flag<-c(12,9,0,5,0) >

...t;b_blkno, self->size]/ { this->elapsed = timestamp - start[self->pid, self->name, args[0]->b_edev, args[0]->b_blkno, self->size]; printf("%5u %10s %58s %2s %8u %8u %3d.%03d\n", self->pid, args[1]->dev_statname, self->name, args[0]->b_flags & B_READ ? "R" : "W", args[0]->b_bcount, self->size, this->elapsed / 1000000, (this->elapsed / 1000) % 1000); start[self->pid, self->name, args[0]->b_edev, args[0]->b_blkno, self->size] = 0; self->pid = 0; se...

...rget::_aiodone:return { self->doit = 0; } io:::start /self->doit || execname == "oracle"/ { block[args[2]->fi_pathname, args[0]->b_blkno ] = timestamp; } io:::done /block[args[2]->fi_pathname, args[0]->b_blkno]/ { self->action = (args[0]->b_flags & B_READ) ? "R" : "W"; @countem[args[1]->dev_pathname, args[2]->fi_pathname, self->action ] = count(); @elapsed[args[1]->dev_pathname, args[2]->fi_pathname, self->action ] = sum(timestamp - block[args[2]->fi_pathname, args[0]->b_blkn...

...com/software/solaris/howtoguides/dtracehowto.jsp#3 #!/usr/sbin/dtrace -qs BEGIN { printf("%10s %58s %2s\n", "DEVICE", "FILE", "RW"); } io:::start { printf("%10s %58s %2s\n", args[1]->dev_statname, args[2]->fi_pathname, args[0]->b_flags & B_READ ? "R" : "W"); } #!/usr/sbin/dtrace -s syscall::write:entry { @[ustack()]=count(); } Do you know how I could proceed ? Watching the size of the write ? Thanks, - Benjamin -- This message posted from opensolaris.org

...so clients on the SI domain can find the PCD via the WINS-server. Some SI-clients are on another subnet. I have tried adding this to lmhosts: 192.38.49.60 SI#1c but namelist.debug shows this entry Subnet 192.38.49.33 ---------------------- Name = SI<1c> Source = LMHOSTS_NAME b_flags = 4 death_time = PERMANENT refresh_time = Fri Nov 19 15:04:23 1999 number of IPS = 1 192.38.49.60 but nothing for the other subnets I have. Using nmblookup I do not get an answer through the x.y.z interface: ~> nmblookup 'SI#1c' querying SI on x.y.z.255 q...

Currently, some new storage devices have the ability to do performance optimizations according to the type of data payload - say, file system metadata, time-stamps, sequential write in some granularity, random write and so on. For example, the latest eMMC 4.5 device can support the so-called ''Context Management'' and ''Data Tag Mechanism'' features. By receiving

I see Intel has released a new tool. Oh, it requires some patches to the kernel to record latency times. Good thing people don''t mind patching their kernels, eh? So who can write the equivalent latencytop.d the fastest? ;-) http://www.latencytop.org/ -- cburgess at qnx.com

...hu Jan 30 08:19:59 2003 +++ dev/ata/ata-disk.c Sat Apr 12 00:31:26 2003 @@ -294,6 +294,7 @@ adstrategy(struct buf *bp) struct ad_softc *adp = bp->b_dev->si_drv1; int s; + stratcalls++; if (adp->device->flags & ATA_D_DETACHING) { bp->b_error = ENXIO; bp->b_flags |= B_ERROR; --- /usr/src/sys.org/kern/vfs_subr.c Sun Oct 13 18:19:12 2002 +++ kern/vfs_subr.c Sat Apr 12 01:56:16 2003 @@ -116,6 +116,10 @@ SYSCTL_INT(_vfs, OID_AUTO, reassignbufme static int nameileafonly = 0; SYSCTL_INT(_vfs, OID_AUTO, nameileafonly, CTLFLAG_RW, &nameileafonly, 0, "&qu...

...INS-server. Some > SI-clients are on another subnet. > > I have tried adding this to lmhosts: > 192.38.49.60 SI#1c > > but namelist.debug shows this entry > > Subnet 192.38.49.33 > ---------------------- > Name = SI<1c> Source = LMHOSTS_NAME > b_flags = 4 death_time = PERMANENT refresh_time = Fri Nov 19 15:04:23 1999 > > number of IPS = 1 192.38.49.60 > > but nothing for the other subnets I have. > > Using nmblookup I do not get an answer through the x.y.z interface: > > ~> nmblookup ...