Displaying 4 results from an estimated 4 matches for "treedata".
2010 Apr 07
1
extracting ctree() output information
Hi,
I am new to R and am using the ctree() function to do customer
segmentation. I am using the following code to generate the tree:
treedata$Response<-factor(treedata$Conversion)
fit<-ctree(Response ~
.,controls=ctree_control(mincriterion=0.99,maxdepth=4),data=treedata)
plot(fit)
print(fit)
The variable "Response" above equals 1 if the customer responded to an
offering and 0 otherwise. Everything works great, however...
2007 Jun 05
5
sampling problem - new to R
I have a data set of individual trees and the plots that they are in:
Tree Plot
56749 1
63494 1
87375 1
37494 2
92753 3
34847 3
38747 4 etc...
So each plot is represented once for every individual that occurrs in it.
Plots get different numbers of rows because there can be a different number
of individuals in each plot.
I want to make a data frame that consists of one
2011 Jan 06
8
Accessing data via url
...an anyone suggest why this works
datafilename <- "http://personality-project.org/r/datasets/maps.mixx.epi.bfi.data"
person.data <- read.table(datafilename,header=TRUE)
# but this does not?
dd <- "https://sites.google.com/site/jrkrideau/home/general-stores/trees.txt"
treedata <- read.table(dd, header=TRUE)
===================================================================
Error in file(file, "rt") : cannot open the connection
In addition: Warning message:
In file(file, "rt") : unsupported URL scheme
# I can access both through a hyperlink in O...
2005 Oct 04
2
newbie questions - looping through hierarchial datafille
Dear List,
Im new to R - making a transition from SAS. I have a space delimited file
with the following structure. Each line in the datafile is identified by
the first letter.
A = Inventory (Inventory)
X = Stratum (Stratum_no Total Ye=year established)
P = Plot (Plot_no age slope= species)
T = Tree (tree_no frequency)
L = Leader (leader diameter height)
F = Feature (start_height finish_height