Sergio Della Franca wrote:
> Dear R-Helpers,
>
>
> I have the following data set(y):
>
> Test_Result #_Test
> t 10
> f 14
> f 25
> f NA
> f 40
> t45
> t
On Mar 30, 2007, at 10:56 AM, Gavin Simpson wrote:
> This is R, there is always a way (paraphrasing an R-Helper the name of
> whom I forget just now).
Can't resist, it's one of my favorite fortunes ;)
That would be Simon 'Yoda' Blomberg:
library(fortunes)
fortune(109)
Haris Skiadas
Department
On Fri, 2007-03-30 at 16:25 +0200, Sergio Della Franca wrote:
> This is that i obtained.
>
> There isn't a method to replace the NA values only for character variable?
This is R, there is always a way (paraphrasing an R-Helper the name of
whom I forget just now). If you mean a canned function, no
Not as part of na.roughfix.
You could convert your character strings to factors
and back again:
library(randomForest)
DF <- data.frame(a = c(T, F, T, NA, T),
b = c(1:3, NA, 5),
c = c("b", "b", NA, "d", "e"),
d = factor(c("a", "a", NA, "d", "e")),
stringsAsFactors = FALSE)
DF$a <- factor(D
This is that i obtained.
There isn't a method to replace the NA values only for character variable?
2007/3/30, Gabor Grothendieck <[EMAIL PROTECTED]>:
>
> I assume you are referring to na.roughfix in randomForest. I don't think
> it
> works for logical vectors or for factors outside of data
I assume you are referring to na.roughfix in randomForest. I don't think it
works for logical vectors or for factors outside of data frames:
> library(randomForest)
> DF <- data.frame(a = c(T, F, T, NA, T), b = c(1:3, NA, 5))
> na.roughfix(DF)
Error in na.roughfix.data.frame(DF) : na.roughfix onl
Dear R-Helpers,
I have the following data set(y):
Test_Result #_Test
t 10
f 14
f 25
f NA
f 40
t45
t44
47
tNA
I want to
This could work, but not with big matrix!
year <- c(1990,1995,2000,2005)
Prod <- c(2478,3192,NA,1594)
matrix <- data.frame(cbind(year,Prod))
for (i in 1:dim(matrix)[1])
{
if (is.na(matrix[i,2])) {matrix[i,2] <- 0}
}
__
R-help@st
See ?is.na and use its result for indexing.
Uwe Ligges
Sergio Della Franca wrote:
> Dearl R-Helpers,
>
>
> I have the following data set:
>
> YEAR PRODUCTS
> 1990 2478
> 1995 3192
> 2000 NA
> 2005 1594
>
>
> I wanto to replace NA values, in the PRODUCTS column, with 0.
>
>
On Wed, 2007-03-28 at 16:21 +0200, Sergio Della Franca wrote:
> Dearl R-Helpers,
>
>
> I have the following data set:
>
> YEAR PRODUCTS
> 1990 2478
> 1995 3192
> 2000 NA
> 2005 1594
>
>
> I wanto to replace NA values, in the PRODUCTS column, with 0.
>
>
> How can i obtain t
Dearl R-Helpers,
I have the following data set:
YEAR PRODUCTS
1990 2478
1995 3192
2000 NA
2005 1594
I wanto to replace NA values, in the PRODUCTS column, with 0.
How can i obtain this?
Thak you in advance.
Sergio Della Franca
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