I have a list of data frames which I would like to combine into one data
frame doing something like rbind. I wish to combine in column order and
not by names. However, there are issues.
The number of columns is not the same for each data frame. This is an
intermediate step to a problem and the
arbara", "Carol"), second3 = c("Jones",
> "Smith", "Adams")),
> data.frame(first4 = ("Al"), second4 = "Jones2"))
>
> ###
>
> dfbycol <- function(x) {
> x <- lapply(x, function(y)as.vector(t(as.matrix(y
&g
e(first1 = c("Al", "Barb", "Carol"), second1 = c("Jones",
> > "Smith", "Adams")),
> > data.frame(first1 = ("Al"), second1 = "Jones"))
> >
> > employees4List = list(
> > data.frame(
= c(NA, -1L))
DF2 <- read.table( text =
"Start End
John Adams
Thomas Jefferson
", header = TRUE, as.is = TRUE )
DFL <- list( DF1, DF2 )
# DFNames is a set of unique identifiers
DFL1 <- data_frame( .DFNames = sprintf( "DF%d", 1:2 )
)
)
)
}
listFinal3 <- lapply( employees4List, myrename3 )
listFinal3
#> [[1]]
#> First1 Second1
#> 1 Al Jones
#>
#> [[2]]
#> First1 Second1 First2 Second2
#> 1 Al2 Jones Barb Smith
#>
#> [[3]]
#> First1 Second1 First2 Second2 Fir
I am using RStudio Version1.0.143 on a Windows 7 machine. R version 3.4.0
I am trying to connect to a postgreSQL database with the following
command, but I receive an error message that says my password is
incorrect. Since I saved my password in a file, I think I remember it.
I searched for a s
do know how to write SQL queries, having
used SQL Server.
On 8/26/2017 9:47 PM, John wrote:
> On Sat, 26 Aug 2017 18:35:31 -0700
> Ira Sharenow via R-help wrote:
>
> Can you access the postgres database through psql or some other route?
> Also, do you require a password to acce
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