Displaying 20 results from an estimated 200 matches similar to: "comparison of large data set"
2012 Dec 21
0
variable names in numeric list and Bayesian inference
Hi everyone, I have received assistance from my previous post
(comparison of large data set), but I still need some assistance.
This is the revised code (along with some new code that I am requesting
assistance with correcting):
files <- paste0("MaxFloodDepth_", 1:54, ".txt")
fileobs <- "MaxFloodDepth_Observed.txt"
readfun <- function(x)
{
u <-
2012 Dec 31
4
error when using subset (0 observations)
Hi, how are you?
My name is Irucka Embry and I would like assistance on properly
subsetting some data obtained from a .csv file.
> file <-"info_n.csv"
> INFO<- getMetaDataFromFile(file)
INFO is 92 observations of 14 variables
> INFO<- subset(INFO,site.no==02169570)
INFO is 0 observations of 14 variables
When the site.no is used I should have 1 observation of 14
2012 Nov 28
7
zeros in double matrix rather than character matrix
Hi, how are you?
I have 1000 total columns with 100 rows and I have shown 4 columns of 100
rows below. I want the zeros to be read in as numerical or integer values
rather than a character. Right now I have a 100x0 character matrix rather
than a 100x1000 double matrix.
What do I need to do to read in a .csv spreadsheet with counting the zeros
as a numerical or integer value?
Thank-you.
Irucka
2013 Jan 09
4
select partial name and full name columns
Hi, I have the following function:
getDataFromDVFileCustom <- function (file, hasHeader = TRUE, separator =
"\t")
{
DVdatatmp <- as.matrix(read.table(file, sep = "\t", fill = TRUE,
comment.char = "#", as.is = TRUE, stringsAsFactors = FALSE, na.strings =
"NA"))
DVdatatmper <- as.matrix(DVdatatmp[ , c("datetime",
2013 Mar 07
5
multiple plots and looping assistance requested (revised codes)
Hi Irucka,
I tried it and was able to plot it without any errors.? Here, your code indicates you need two lines. temper[[i]][1]
?temper[[1]][1] # which is the column 1.
? Month
1???? 1
2???? 2
3???? 3
?temper[[1]][2]
#? Data1
#1?? 1.5
#2? 12.3
#3? 11.4
Suppose I use names(temper) instead of seq_along(temper)
pdf("irucka.pdf")
?lapply(names(temper),function(i)
2013 Mar 29
1
multiple plots and looping assistance requested (single plot)
HI Irucka,
Please check this:
temp<- structure(list(`:Bostoncitydata` = structure(list(Month = c(1L,
2L, 3L, NA), Data1 = c(1.5, 12.3, 11.4, NA), Data2 = c(9.1342,
12.31, 3.5, NA)), .Names = c("Month", "Data1", "Data2"), class = "data.frame", row.names = c(NA,
-4L)), `:Chicagocitydata` = structure(list(Month = c(1L, 2L,
3L, 4L, 5L, NA), Data1 = c(1.52,
2012 Dec 19
2
probability of binary data
Hi, how are you?
I am trying to replicate the binary data f(2) function in the attached
document by starting with the simple example found below:
observed <- matrix(c(0, 1, 0, 0, 1, 1, 1, 0, 0),3,3,byrow=TRUE)
data <- matrix(c(1, 1, 0, 0, 1, 0, 0, 0, 1),3,3,byrow=TRUE)
f2 = sum(probability of the matrix element where the matrix element is
present in both the observed and the
2015 Aug 18
2
Server certificate verification failed
Hi all, I have the following in my apt sources.list file: deb https://
/bin/linux/ubuntu trusty/
I issued the following command to obtain the public key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9
I am receiving the following error message though after updating the
Synaptic package manager:
Failed to fetch
2012 Nov 19
5
help on matrix column removal based on another matrix results
Hi everyone, now I am trying to finish writing the code (I had asked for
assistance on subtracting arrays)
This is what I what I am running in R:
> source("/home/ie/Documents/TTU/GA_Research/GLUE/R-Project/R_GLUE_Example/NSEr.R")
NSEr <- function (obs, sim)
{
{jjh <- (as.vector(obs) - sim)^2
Xjjhs <- apply(Xjjh, 2, sum)
Yii <- (obs - mean(obs))^2
Yiis <- apply(Yii, 2,
2013 Mar 05
2
multiple plots and looping assistance requested
Hi all, I have a couple of questions.
1) Is there a more effective way to remove the following pattern
(patternrm) from the station_id_Timeseries (see below)
patternrm <- c(_2000_4_OND, _2001_1_JFM, _2001_2_AMJ, _2001_3_JAS,
_2001_4_OND, _2002_1_JFM, _2002_2_AMJ, _2002_3_JAS, _2002_4_OND,
_2003_1_JFM, _2003_2_AMJ, _2003_3_JAS, _2003_4_OND, _2004_1_JFM,
_2004_2_AMJ, _2004_3_JAS, _2000_4_OND) #
2013 Jan 15
2
error in for loop in function (object not found)
Hi all, I have attached the function file (revisedfunction) and the list
of station IDs (StationIDs) in .pdf format.
I have written a function to perform various operations on the station
IDs in two groups. The first 6 station IDs require one less step than
the remaining 68 station IDs. The file referenced at the beginning of
the function is the file containing the StationIDs.
> file =
2013 Jan 27
1
lapply and SpatialGridDataFrame error
Hi all, I have a set of 54 files that I need to convert from ASCII grid
format to .shp files to .bnd files for BayesX.
I have the following R code to operate on those files:
library(maptools)
library(Grid2Polygons)
library(BayesX)
library(BayesXsrc)
library(R2BayesX)
readfunct <- function(x)
{
u <- readAsciiGrid(x)
}
modfilesmore <- paste0("MaxFloodDepth_", 1:54,
2012 Nov 19
6
loop to subtract arrays / error
Hi everyone, I am having trouble with creating a loop to subtract arrays.
In R, this is what I have done:
> Vobsr <- read.csv("Observed_Flow.csv", header = TRUE, sep =",") # see data
> below
> Vsimr <- read.csv("1000Samples_Vsim.csv", header = TRUE, sep =",") # see
> data below
> Vobsr <- as.matrix(Vobsr[,-1]) # remove column 1 from
2012 Nov 28
1
how to keep all zeros in 1st row (not NA)
Hi, let me correct my previous post ("zeros in double matrix rather than
character matrix").
I have included entries from the .csv file that has 4 columns of 1000
columns and 101 rows. The first column with the "Time (day)" will not be
removed, but the row headers are the numbers 1 to 1000 and they will remain
in the matrix.
In the previous post I mentioned that R makes the
2007 Mar 05
4
Identifying points in a plot that have duplicate values
I have code like this: -
#-----------------------------------------------------------------------
------------------------------------------------------
x=scan()
0 0 0 0 0 1 2 3 4
y=scan()
1 1 1 2 2 1 3 4 5
plot(x,y)
identify(0,1,3) #Allows me to select manually to identify co-ordinate
(0,1) as being duplicated 3 times
identify(0,2,2) #Allows me to select manually to identify co-ordinate
2007 Aug 01
3
"Cut marks" on a plot's y-axis to indicate it is a truncated axis
Hi,
I've plotted a Kaplan-Meier curve but the curves only range from 0.7 to
1 on the y-axis. Therefore I have used: -
ylim=c(0.7,1)
[although I think convention dictates that you plot 0.5 to 1 to show the
median? A few papers I've read have done this]??
BUT, I would like a symbol like // (but rotated 90 degrees) to indicate
that the y-axis has been truncated. I'd need to be able to
2007 Aug 16
1
(coxph, se) Obtaining standard errors of coefficients from coxph to store
Hi all,
I'm wanting to be able to find and store the z-score of coxph below: -
modz=coxph(Surv(TSURV,STATUS)~RAGE+DAGE+REG_WTIME_M+CLD_ISCH+POLY_VS,
data=kidneyT,method="breslow")
I know summary(modz) will give me this, but how do i extract the
standard error or z-score values in a similar way to obtaining the
coefficients by coef(modz) ? I think it must be something to do with
2007 Aug 06
1
(Censboot, Z-score, Cox) How to use Z-score as the statistic within censboot?
Dear R Help list,
My question is regarding extracting the standard error or Z-score from a
cph or coxph call. My Cox model is: -
modz=cph(Surv(TSURV,STATUS)~RAGE+DAGE+REG_WTIME_M+CLD_ISCH+POLY_VS,
data=kidneyT,method="breslow", x=T, y=T)
I've used names(modz) but can't see anything that will let me extract
the Z scores for each coefficient or the standard errors in the same
2013 Feb 20
0
subsetting with greater than and less than indexing
Hi Arun, thank-you for your assistance.
I'm sorry that I did not provide a reproducible example. I will provide
a reproducible example the next time.
Using the next to last line of your code I was able to get what I needed
without using the for loop.
Thanks again.
Irucka
<-----Original Message----->
>From: arun kirshna [via R] [ml-node+s789695n4659154h50@n4.nabble.com]
2013 Mar 21
0
how do I read certain files from a directory based on number of columns?
Hi Arun, thank you. I will look through that later on today when I get a
chance. I have to complete another part of this project now.
Irucka
<-----Original Message----->
>From: arun kirshna [via R] [ml-node+s789695n4661145h71@n4.nabble.com]
>Sent: 3/12/2013 10:35:39 PM
>To: iruckaE@mail2world.com
>Subject: Re: how do I read certain files from a directory based on
number of