Thanks a lot
--
View this message in context:
http://r.789695.n4.nabble.com/Summing-up-Non-numeric-column-tp3077710p3077733.html
Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman
Dear All
If I have the following dataset
V1 V2
x y
y x
z b
a c
b j
d l
c o
How do I use R command to get the total number of different letter in column
"V1"
column "V1" has 7 different letters.
Thank you
--
View this message in context:
http://r.789695.n4.nabble.com/Summing-up-
I tried the load() already. It does not work. The erro is shown as following:
Error in readChar(con, 5L, useBytes = TRUE) : cannot open the connection
In addition: Warning message:
In readChar(con, 5L, useBytes = TRUE) :
cannot open compressed file
'http://rss.acs.unt.edu/Rdoc/library/twang/dat
Dear All,
Can you please suggest me a correct way to load the following R data frame
from the internet and save it to the hard drive?
The following is what I tried:
> raceprofiling <-
> read.table("http://rss.acs.unt.edu/Rdoc/library/twang/data/raceprofiling.RData";)
> save(raceprofiling, file =
Dear All,
I try to read the SAS transport file in R, but it shows error. Please help!
I am using R 2.11.1
library(foreign)
download.file("http://isites.harvard.edu/fs/docs/icb.topic35387.files/demo_c.xpt","C:/Desktop/demo_c.xpt";)
sasxport <- read.xport("C:/Desktop/demo_c.xpt")
Error in l
Dear experts,
I need to write R code for lim(I+X/n)^n with "repeat loop". (note: limit is
n from 1 to infinity, I is identity matrix, X is square symmetric matrix)
Can anyone please provide help with my question.
Thank you.
--
View this message in context:
http://r.789695.n4.nabble.com/matrix
Dear Experts,
the exponent of asymmetric matrix makes me very curious.
can anyone please explain to me "what will happen if we apply exponent to
the asymmetric matrix"?
Thank you very much
--
View this message in context:
http://r.789695.n4.nabble.com/Exponent-of-asymmetric-matrix-tp3035374p3
Dear Experts,
The following is my "Iterator". When I try to write a new function with
itel, I got error.
This is what I have:
> supDist<-function(x,y) return(max(abs(x-y)))
>
> myIterator <- function(xinit,f,data=NULL,eps=1e-6,itmax=5,verbose=FALSE) {
+ xold<-xinit
+ itel<-0
+ repeat {
+ xn
Dear R experts,
I really have difficulty when I try to deal with this question.
suppose X is a square symmetric matrix. The exponent of X is defined by the
matrix limit as following:
exp(X) = lim (I + X/n)^n, note: the limit is from n to infinite.
How can I write R function for the above?
Tha
Hello everyone
Can you please teach me how to save my homework as .R file?
I write my code in RGui. When I tried to save my work, the RGui only allows
me to save it as .RData.
Is there any difference between .R and .RData?
By the way, after I save my work as .RData, I cannot reopen it. when
Hello everyone
Can you please teach me how to save my homework as .R file?
I write my code in RGui. When I tried to save my work, the RGui only allows
me to save it as .RData.
By the way, after I save my work as .RData, I cannot reopen it. when I open
it, only one message comes out as following
11 matches
Mail list logo