Hiya,
I have been struggling to save the result from the FOR loop. What is the
best way to do it, as I need the result to merge with another dataset for
further analysis ?
for (dd in ((M-10):M)){
+ dist<-(32-dd)
+ r<-1/2*(1-exp(-2*dist/100))
+ map<-c(dd,round(r,4))
+ print(map)
+ next
+ }
Thanks. Stella
___________________________________________________________________________
This message, including attachments, is confidential. If you...{{dropped}}
Not sure if it's the best way, but you could do it this way:
all.results <- vector(mode="numeric")
for (i in 1:100)
{
...
this.run <- ...
all.results <- c(all.results,this.run)
}
At this point all.results contains the values of this.run from the
whole loop. If this.run is not a vector/number but a data frame look
at rbind/cbind.
Or, create a vector/matrix first and then populate it from the for
loop:
all.results <- vector()/matrix()/data.frame()
for (i in 1:100)
for(j ...)
{
...
all.results[i] <- this.run ,OR
all.results[i,] <- this.run , OR
all.results[i,j] <- this.run
}
HTH,
b.
-----Original Message-----
From: ssim at lic.co.nz [mailto:ssim at lic.co.nz]
Sent: Tuesday, December 14, 2004 2:44 PM
To: r-help at stat.math.ethz.ch
Subject: [R] Re : Save result in a For Loop
Hiya,
I have been struggling to save the result from the FOR loop. What is
the
best way to do it, as I need the result to merge with another dataset
for
further analysis ?
for (dd in ((M-10):M)){
+ dist<-(32-dd)
+ r<-1/2*(1-exp(-2*dist/100))
+ map<-c(dd,round(r,4))
+ print(map)
+ next
+ }
Thanks. Stella
___________________________________________________________________________
This message, including attachments, is confidential. If\ yo...{{dropped}}
Is there anything wrong with vectorized calculation? E.g., dd <- (M-10):M r <- 0.5 * (1 - exp(-2 * (32 - dd) / 100)) round(r, 4) Andy> From: bogdan romocea > > Not sure if it's the best way, but you could do it this way: > all.results <- vector(mode="numeric") > for (i in 1:100) > { > ... > this.run <- ... > all.results <- c(all.results,this.run) > } > At this point all.results contains the values of this.run from the > whole loop. If this.run is not a vector/number but a data frame look > at rbind/cbind. > > Or, create a vector/matrix first and then populate it from the for > loop: > all.results <- vector()/matrix()/data.frame() > for (i in 1:100) > for(j ...) > { > ... > all.results[i] <- this.run ,OR > all.results[i,] <- this.run , OR > all.results[i,j] <- this.run > } > > HTH, > b. > > > -----Original Message----- > From: ssim at lic.co.nz [mailto:ssim at lic.co.nz] > Sent: Tuesday, December 14, 2004 2:44 PM > To: r-help at stat.math.ethz.ch > Subject: [R] Re : Save result in a For Loop > > > Hiya, > > I have been struggling to save the result from the FOR loop. What is > the > best way to do it, as I need the result to merge with another dataset > for > further analysis ? > > for (dd in ((M-10):M)){ > + dist<-(32-dd) > + r<-1/2*(1-exp(-2*dist/100)) > + map<-c(dd,round(r,4)) > + print(map) > + next > + } > > Thanks. Stella > ______________________________________________________________ > _____________ > This message, including attachments, is confidential. If\\...{{dropped}}