Displaying 6 results from an estimated 6 matches for "ahere".
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2011 Nov 16
1
Sequence Prediction
I have a data with the sequence of events with millions records and more than
24 time stamped variables.
sample data:
1 2 3 4 5 6 7 8 9 10
A A A C C C B B D D
D D D D D C C C C C
B B A C A C C C D D
I want to predict sequence for next 3 period. How this can be achieved using
R. Is there any package/function in R do this.
I have gone through the document for package "TraMineR" but not
2011 Nov 04
2
Reading parameters from dataframe and loading as objects
Hi List,
I want to read several parameters from data frame and load them as object
into R session, Is there any package or function in R for this??
Here is example
param <-c("clust_num", "minsamp_size", "maxsamp_size", "min_pct", "max_pct")
value <-c(15, 20000, 200000, 0.001, .999)
data <- data.frame ( cbind(param , value))
data
2011 Nov 22
1
Capping outliers
Hi Experts,
I am new to R, using following sample code for capping outliers using
percentile information. Working on large data (30000 observations and 150
variables), loop I am using in the below mentioned code for detecting
outliers and capping to upper /lower percentile value is taking much time
for the execution.
Is there anything wrong with code, can anyone suggest improvement in the
script
2011 Nov 12
1
Please Help
...tuationy=number of particles emitted in 1 hr period~pois(30)p=probability of detection of radiation particlesx=number of particles detected by a radiation detector~pois(30p)where p~beta(a,1)I have to calculate the loglikehood for a for the range a(2,50)I wish to simulate 100 random samples for each aHere is my code:-m=481n=100x = c(15, 36, 29, 28, 37, 32, 25, 27, 31, 21, 25, 27, 28, 31, 28, 20, 34, 25, 20, 34, 15,21, 28, 24, 31, 19, 34, 29, 18, 25, 16, 19, 44, 26, 34, 31, 21, 28, 11, 31, 21, 34, 25, 25,30, 23, 21, 35, 36, 21, 27, 29, 30, 22, 25, 30, 24, 27, 28, 22, 36, 29, 33, 35, 30, 32, 27,26, 25...
2011 Oct 24
1
How to delete rows using conditions on all columns
n <- 10
P1 <- runif(n)
P2 <- runif(n)
P3 <- P1 + P2 + runif(n)/100
P4 <- P1 + P2 + P3 + runif(n)/100
mydata <- data.frame(cbind(P1,P2,P3,P4))
mydata[1,1] <- 8
mydata[3,1] <- -5
mydata[2,3] <- -6
mydata[7,3] <- 7
f=function(z){quantile(z, c(0.01, 0.99)) }
temp1 <- lapply(mydata, f)
temp1
$P1
1% 99%
-4.542391 7.354209
$P2
1% 99%
2012 Jan 17
1
Scoring using cox model: probability of survival before time t
Dear Members,
I required to score probability of survival before specified time using
fitted cox model on scoring dataset.
On the training sample data I am able to get the probability of a survival
before time point(t), but on the scoring dataset, which will have only
predictor information I am facing some issues. It would be great help for me
if you tell me where am I going wrong!
Here is the