Displaying 7 results from an estimated 7 matches for "smalladi".
Did you mean:
malladi
2004 Sep 27
1
Enright/Chi-square periodogram / periodicity
I am trying to compute the periodicity of a time series.
I would like to know which function in R does it.
Also, how do I plot a Enright / Chi-square periodogram using R ?
( Enright, J.T., 1965, Journal of Theoret. Biol. 8,426-468)
Greatly appreciate your help.
Thanks in advance,
Sukhaswami Malladi
***************************************************************************
The contents
2004 Mar 10
2
Inserting Date Field into Oracle table using ROracle
...ot;)) ## -- c("date") does not work
sapply(d, class)
d$CDATE <- as.character(d$CDATE)
sapply(d, class)
dbExecStatement(ps,d)
Error in oraExecStatement(ps, data, ...) :
RS-DBI driver: (ORA-01861: literal does not match format string )
Thanks for your help in advance,
Swami
(smalladi at lexgen.com)
----------------------------- Correspondence with David James
-----------------------
Dear David,
Thanks for your kind reply. I did what you suggested, coerced
d into a character vector. Now I get an Oracle error -
d <- data.frame(CDATE = "TO_DATE('2004-03-10 10:12:00...
2002 Nov 01
3
Line plot with date-time on X-axis
Dear List,
What is the way in R to plot a graph having date time (e.g. format
12/31/2002 13:12) in the
x axis and numerical value (e.g. temperature) on the Y-axis ?
I could not get 'plot()' to do this as X axis values are non-numeric.
'bwplot()' sorts the date
values and thereby changes the order of the dates and of Y. The date/time
values have to be
shown on the X-axis as tick
2002 Aug 06
1
Repeated Measures ANOVA
R-help,
Could someone in the list write as to what is the R function to
perform repeated measures ANOVA and post-hoc tests ?
Thanks in advance,
swami
***************************************************************************
The contents of this communication are intended only for the addressee and
may contain confidential and/or privileged material. If you are not the
intended recipient,
2003 Jan 24
1
RMySQL performance over RODBC
R-help list,
I ported some R code from MS Windows PC to sun-solaris. Both do queries on
the same
MySQL database.
PC version of R is 1.6.1 and solaris version is 1.6.0. I use RMySQL_0.5-0
(on solaris)
and RODBC 1.0-1 on PC to connect to MySQL. The PC version took about 65
mins. to run
wheras the Solaris (SunOS 5.7) version took 375 mins. (> 6 hrs). R and
RMySQL are
resident on the same host
2002 Jan 02
1
RODBC - dsn specification
Happy New Year to all in the list!
I am trying to issue an SQL query to a database from R using
RODBC (on Windows). The data source file is on my PC hard
disk : C:\Program Files\ODBC\sql.dsn
The "\" character does not get interpreted properly in R - it
is removed from the file-spec string or if I specify "\\" it
appears as such with a syntax error in
odbcConnect(dsn,
2002 Jun 04
1
data format of x in x <- sqlQuery()
All
When I read data into an R variable x using RODBC command:
x <- sqlQuery(channel,"select a, b from tabl",as="data frame")
and view x, I get 3 columns the first one being the index of
the rows in x.
What options do I use in sqlQuery so as not have the index in x ?
How do I get rid of the index otherwise.
For some functions like princomp (and boxplot) for