Displaying 6 results from an estimated 6 matches for "agg1".
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2011 Jul 14
2
cbind in aggregate formula - based on an existing object (vector)
...1,3.1,30.1,300.1,4.1,40.1,400.1)
example<-data.frame(mydate=mydate,value1=value1,value2=value2)
example$group<-c(rep("group1",3),rep("group2",3),rep("group1",3),rep("group2",3))
example$group<-as.factor(example$group)
(example);str(example)
example.agg1<-aggregate(cbind(value1,value2)~group+mydate,sum,data=example)
# this works
(example.agg1)
### Building my object (vector of 2 names - in reality, many more):
myvars<-c("value1","value2")
example.agg1<-aggregate(cbind(myvars)~group+mydate,sum,data=example)
### does not...
2012 Jun 05
4
need descriptive help
Hi all, I'm new to using R, and apologize for simplicity of this
question.
I'm using a data set with over 60,000 observations, Two variables are
patient ID, and cost incurred by the patient. I'd like to generate
frequency/table by patient and cost IF the total cost is over 2000.
Right now I'm using:
by(x$cost, x$patient, sum)
but this generates a huge list for each patient.
2011 Jan 26
1
aggregate(as.formula("some formula"), data, function) error when called from in a function
...0,replace=TRUE)
# make a column of 1s and zeros
# 1 when that row has that level of y
# 0 otherwise
lvls <- levels(dat$y)
dat$ya <- 1*(dat[,1] == lvls[1])
dat$yb <- 1*(dat[,1] == lvls[2])
dat$yc <- 1*(dat[,1] == lvls[3])
# this works fine if you give the exact function
agg1 <- aggregate(cbind(ya,yb,yc)~x,data=dat,sum)
# and fine if you accept
fo <- as.formula("cbind(ya,yb,yc)~x")
if(test) {
return(list(fo=fo,data=dat))
}
cat("do agg 2\n")
agg2 <- aggregate(fo,data=dat,sum)
list(agg1,agg2)
}
agg2(FALSE)
ag <- agg2(TRUE)...
2008 Mar 29
3
Generating maps in R
Greetings!
I am trying plot some data on a map in R. Here's the scenario.
I have a variable called probworkinghealthy which contains a predicted
probability of employment for every individual in my sample (about
100,000 observations).
I have another variable, called a001ter, which contains the subject of
residency in the Russian Federation (akin to a US state) for every
individual in the
2011 Apr 18
1
using "aggregate" when variable names contain spaces
...$group)
### Generating variable names with spaces:
names(example)<-c("mydate", "my value 1","my value 2","group")
### Trying to aggregate - but it's not working. Clearly, my reference
to variable names is incorrect:
mynames<-names(example)
example.agg1<-aggregate(cbind(mynames)~group+mydate,sum,data=example)
Thank you very much!
--
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com
2012 Sep 07
7
Producing a table with mean values
Hi All,
I have a data set wit three size classes (pico, nano and micro) and 12
different sites (Seamounts). I want to produce a table with the mean and
standard deviation values for each site.
Seamount Pico Nano Micro Total_Ch
1 Off_Mount 1 0.0691 0.24200 0.00100 0.31210
2 Off_Mount 1 0.0938 0.00521 0.02060 0.11961
3 Off_Mount 1 0.1130 0.20000 0.06620 0.37920
4 Off_Mount 1