Displaying 5 results from an estimated 5 matches for "mindat".
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2011 Jan 21
3
data and parameters
(1) I have a master data frame that reads
ClientID |date |value
(2) I also have a control data frame that reads
Client ID| Min date| Max date| control parameters
The control data set may not have all client IDs .
I want to use the control data frame on the master data frame to
remove client IDS that don't exist in the control data set and for
those that do, remove dates outside the
2005 Apr 24
1
large dataset import, aggregation and reshape
Dear useRs
We have a data-set (comma delimited) with 12Millions of rows, and 5
columns (in fact many more, but we need only 4 of them): id, factor 'a'
(5 levels), factor 'b' (15 levels), date-stamp, numeric measurement. We
run R on suse-linux 9.1 with 2GB RAM, (and a 3.5GB swap file).
on average we have 30 obs. per id. We want to aggregate (eg. sum of the
measuresments under
2009 Nov 19
1
Performance of 'by' and 'ddply' on a large data frame
I've only recently started using R. One of the problems I come up
against is after having extracted a large dataset (>5M rows) out of
database, I realize I need another variable. In this case I have data
frame with dates. I want to find the minimum date for each value of x1
and add that minimum date to my data.frame.
> randomdf <- function(p) {
data.frame(x1=sample(1:10^4, 10^p,
2001 Nov 08
5
OpenSSH3.0p1/PAM/Sol8
Hi there,
I just tried out OpenSSH3.0p1 running on Solaris 8 with PAM (--with-PAM).
The problem was mentioned some time ago and is still there :-(
When a password is expired you are prompted to change it now, enter your
login password and after doing so you are instantly disconnected. I think
this is a problem with PAM and not SSH, but how can I get a solution on this
?
sshd is running without
2011 Jan 22
0
how to call BayesX in R to see the graph
...o7kcuD3jZyVyjH=kMK=-5Yb+rNJW2eO-sod@mail.gmail.com<5Yb%2BrNJW2eO-sod@mail.gmail.com>
>
Content-Type: text/plain; charset=ISO-8859-1
try 'sqldf'
> master=as.data.frame(list(clientId=c(1:4,2), date=1001:1005,
+ value=10001:10005))
> control=as.data.frame(list(clientId=c(2,3), mindate=c(100,1005),
+ maxdate=c(1005,1005), control.params=c(1,2)))
> master
clientId date value
1 1 1001 10001
2 2 1002 10002
3 3 1003 10003
4 4 1004 10004
5 2 1005 10005
> control
clientId mindate maxdate control.params
1 2 100 1005...