Hello everybody
I'm having some difficulties to design the decision tree algorithm J48.
I am using the following code and when I run it gives me the following
message
plot(m1)
Error in plot.Weka_tree(m1) :
Plotting of trees with multi-way splits is currently not implemented.
#The code
library
Hello everybody.
I'm trying to send the result of a decision tree for latex, but I do not
get with the package(xtable), there is a package that make this export
Export this for latex
marital.status = Divorced
| educational.num <= 12: <=50K (1795.0/90.0)
| educational.num > 12
| | ho
Hello,
This is the code to generate the tree
library(RWeka)
library(randomForest)
library(party)
library(partykit)
if(require(mlbench, quietly = TRUE) && require(party, quietly = TRUE))
m1 <- J48(income2 ~ capital.gain+capital.loss+relationship+marital.status,
data = treino)
#m1 <- J48(in
good night
Again I ask for help to the community, as I am new at this, I have some
basic questions.
I am looking for packages on neural networks and so you can search found
these two that I think are the most used, neuralnet, nnet.
So you can test, and correct me if I'm wrong the neuralnet
good night
Again I ask for help to the community, as I am new at this, I have some
basic questions.
I am looking for packages on neural networks and so you can search found
these two that I think are the most used, neuralnet, nnet.
So you can test, and correct me if I'm wrong the neuraln
Good Afternoon,
I am inexperienced in data visualization R. so I wonder if someone can help
me.
I am using the generic database mtcars.
I would like to change the chart plot, instead of appearing the name of the
medicine, I wanted a symbol in the chart drugX arise for example in a yellow
circle,
Hello Michael,
You were absolutely right, it was not the database mtcars I wanted to
use. but the example you sent me helped me a lot.
I took the code that I adapted to this and what I wanted and resulted in
perfection.
Thank you for your help.
dataset
*with (dataset, plot (dataset
Hello,
I am a new user of R, so I still have some basic difficulties.
I'm trying to create a bar graph completely from reading a file.
The idea was on the x axis have the columns of the table
Married ,Single,Divorced, widower
the legend Ages
18-34
35-45
46-64
65-69
70-74
the dataset
Good Morning
I have a small question regarding the function subset.
I am copying data from one table but I just want to collect data from a
user.
When do I take the view, presents the results I want.
The problem arises when can I make the tab. for RES_ID, introduces me to
zero results do not
Thank you.
I put table(factor(x.sub$RES_ID)) and works.
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Good Day,
I have a small question, I think it is simple to solve,
I have a column with the following records
name
saucer
cup
tea
saucer
saucer
what is the quickest way to create a new column codes
1
1
3
1
1
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It was.
Thanks
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Good Afternoon,
I have a small problem with the following code.
# The x.sub$Time[[1]] 2006-10-31 19:03:01 EST
# when put in variable star give-me
star<-x.sub$Time[[1]]
print(star)
print(x.sub$Time[[1]])
[1] 1 36 32 -
do not understand why
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ht
Hello
In the variable x.sub$Time i have the many dates in format 2006-10-31
20:10:35 EST, for example when
print (x.sub$Time) give this
[1] "2006-10-31 20:10:35 EST" "2006-10-31 20:11:08 EST" "2006-10-31 20:11:21
EST" "2006-10-31 20:12:16 EST"
[5] "2006-10-31 20:13:20 EST" "2006-10-31 20:13
Hello
I try save the results in the the vector,
v_star[1]<-x.sub$Time[1]
and give me the following error
In v_end[1] <- x.sub$Time[1] :
number of items to replace is not a multiple of replacement length, how
put this [1] *"2006-10-31 19:03:01 EST"*
inside the vetor
Thanks
--
Vi
I'm trying to copy the results of a dataframe to another within a cycle for
but I am not able to implement the rbind, because give th
d<-Null
df<-NULL
for(r in 2: nrow(x))
{
val_user<-x.name[[r]]
pos<-x.pos[[r]] -4
age <-x.age[[r]]
d<-data.frame(val_user,pos,)
I'm trying to copy the results of a dataframe to another within a cycle for
but I am not able to implement the rbind, because give th
d<-Null
df<-NULL
for(r in 2: nrow(x))
{
val_user<-x.name[[r]]
pos<-x.pos[[r]] -4
age <-x.age[[r]]
d<-data.frame(val_user,pos,)
pr
Hello,
the idea is to copy the d for df, with new results.
x<-data.frame(name="x1",pos=4,age=20)
x<-rbind(x,data.frame(name="x2",pos=5,age=20))
x<-rbind(x,data.frame(name="x3",pos=6,age=21))
x<-rbind(x,data.frame(name="x4",pos=7,age=24))
x<-rbind(x,data.frame(name="x5",pos=8,age=27))
x<-rbind
Hello
Thanks for the reply. As yet I have not much experience in r, although I
make some mistakes.
Any tips to solve the problem of a more effective way.
Regards
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Sent from
Hello
I am developing a small program that to calculate the maximum, minimum
and average.
The data.frame v is
POS DIF
4 - 4 56
4 - 3 61
3 - 3 300
3 - 327
3 - 3 33
3 - 3 87
3 - 4 49
4 - 4 71
4 - 3 121
3 - 4 138
4 - 3 15
I have next table
source destine
33
77
6 6
3 4
4 4
4 3
3 3
3 3
3 3
3 3
3 4
4 4
4 3
3 4
4 3
I'm trying to create an array with the number of occurrences between the
source and destination.
id_ap<-level
Hello
is the dataset that was sent to help, has over two columns the source and
destination, is the separation of position pos
POS DIF SourceDest
4 - 4 56 4 4
4 - 3 61 4 3
3 - 3 300 3 3
3 -
I have next table
source destine
3 3
7 7
6 6
3 4
4 4
4 3
3 3
3 3
3 3
3 3
3 4
4 4
4 3
3 4
4 3
I'm trying to create an array with the number of occurrences between the
source and destination. id_ap<-levels(factor(df$v_source))
num_AP<-length(levels(factor(df$v_source)))
mat<-matrix(
Hello,
With the following code get the results array
res3<-table(df$v_source,df$v_destine)
1 2 3 4 5 6 7
1 0 10 0 0 0 0 0
2 11 0 0 0 0 0 0
3 0 0 18 15 0 0 0
4 0 0 15 11 0 0 0
5 0 0 0 0 1 0 0
6 0 0 0 0 0 1 0
7 0 0 0 0 0 0 18
my
Hello
Error: could not find function sqldf:
Hello, I'm using R Studio, and installed the option of installing the
packages sqldbf function.
But When I run the code give the next error.
install.packages("sqldf")
library("RSQLite")
require(sqldf)
x <- read.fwf(textConnection("4 - 4 5
Hello,
this solve my problem. table(testdata$source, testdata$destine)
Thanks
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thank you
It is working, a question in the wake of the array.
with the following code I am creating a data frame to store the data without
repeating the code is working.
The question is the best way to do this process in R
tab<-NULL
for(i in 1: nrow(res4))
{
for(j in i:nrow(res4))
{
#add column Start
Hello
Good Afternoon I am trying to create a new column in the data frame, the
target is based on a column of dates to extract a value of life and add a
new column to data frame
f<-x.res$T-x.res$duration
Dataset$StarEvent<-(as.character.POSIXt(f))
x.sub$T is:
[1] "2006-10-31
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