Displaying 2 results from an estimated 2 matches for "sarah_r_edu".
2011 Oct 11
5
help to ... import the data from Excel
Hi every one ,,,,
i have problem in R program to import the data from excel ,
I have done the following:
1. install.packages("xlsReadWrite")
2. library(xlsReadWrite)
3. z<- read.xls("ReadXls",LTS,colNames=FALSE,sheet,type,form,rowNames=FALSE)
and i got on the result:
Error in read.xls("ReadXls", LTS, colNames = FALSE, rowNames = FALSE) :
object
2012 Nov 22
1
help in M-estimator by R
hi guys and gals ... How are you all ...
i have to do something in robust regression by R programm , and i have some
problems as following:
*the first :*
suppose
w(r) =1/(1 r^2) and r <- c(7.01,2.07,7.061,5.607,8.502,54.909,12.222)
and i want to exclude some values from r so that (abs(r)>4.9 )...
after ,i want to used (w) to get on coefficients beta0 and beta1 (B1 <-