Displaying 3 results from an estimated 3 matches for "errortest".
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errorest
2007 Aug 31
3
data frame row manipulation
...n relation to
the persons max-vol.
evaluation[,"relDrink"]= evaluation$vol/getMaxVal(evaluation$name)
#
# this brings the error:
#
#Warning message:
# Korrupter Data Frame: Spalten werden abgeschnitten oder mit NAs
# aufgefüllt in: format.data.frame(x, digits = digits, na.encode = FALSE)
errortest= evaluation$vol/getMaxVal(evaluation$name)
errortest
# this brings:
# numeric(0)
#target was the following:
#show in each line the daily consumed beer per person and in the next column
#the all time max consumed beer for this person´(or divided by daily vol):
#
# date name vol relDrink
#1...
2004 Jan 09
3
ipred and lda
Dear all,
can anybody help me with the program below? The function predict.lda
seems to be defined but cannot be used by errortest.
The R version is 1.7.1
Thanks in advance,
Stefan
----------------
library("MASS");
library("ipred");
data(iris3);
tr <- sample(1:50, 25);
train <- rbind(iris3[tr,,1], iris3[tr,,2], iris3[tr,,3]);
test <- rbind(iris3[-tr,,1], iris3[-tr,,2], iris3[-tr,,3]);
cl <...
2005 May 23
0
confidence interval and cross validation
I've obstained the mean square error of prediction, using a 10 fold cross validation for a linear multiple regression model (I've used errortest, from package ipred), how can I calculate the confidence interval? And, could I use test set of cross validation to calculate correlation and concordance index?
Thanks, Marta