Displaying 2 results from an estimated 2 matches for "moethods".
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2010 Jun 17
5
cameras and CentOS
...script does that) and see that on a webpage.
However, I want to have a couple of cameras a little further
away (more than 5 meters).
USB has a limit, I have tried that camera with a longer cable
and it does not work ... so I need to route that in a different
way. Are there equaly as cheap other moethods? Or can I use
USB<-adapter->network cable<-adapter->USB?
How can I get that to work?
Jobst
--
Student to Teacher: Sir, what's an oxymoron? .... Teacher to Student: Microsoft security.
| |0| | Jobst Schmalenbach, jobst at barrett.com.au, General Manager
| | |0| Barrett...
2010 Sep 09
0
Fast / dependable way to "stack together" data frames from a list
...ncol = nc)
)
colnames(resultDF4B) <- colnames(mylist[[1]])
system.time(
for (j in 1:m) resultDF4B[(((j-1)*nr) + 1):(j*nr), ] <- mylist2[[j]]
)
### That's FAST!
### user system elapsed
### 0.07 0.00 0.07
all.equal(resultDF, as.data.frame(resultDF4B))
### Now the two moethods from plyr.
system.time( resultDF5 <- ldply(mylist, rbind))
## Just about as fast, much less error prone
## user system elapsed
## 1.290 0.000 1.306
all.equal(resultDF, resultDF5)
system.time(resultDF6 <- rbind.fill(mylist))
## user system elapsed
## 0.450 0.000 0.459
al...