Displaying 5 results from an estimated 5 matches similar to: "Error with paired t-test"
2012 Nov 23
6
Summary statistics for matrix columns
Hi,
is there a way I can calculate a summary statistics for a columns matrix
let say we have this matrix
x <- matrix(sample(1:8000),nrow=100)
colnames(x)<- paste("Col",1:ncol(x),sep="")
if I used summary
summary(x)
i get the output for each column but I need the output to be in matrix with
rownames and all the columns beside it
this how I want it
2005 Sep 08
1
Crash with seasonal ARIMA
The following command crashes my Mac OS X version of R:
(I'm running R on a PowerMac G5, with 1 GB of RAM and dual processors.)
> arima.0 <- arima(w3.ts,order=c(1,0,0),seasonal=list(order=c
(1,0,0),period=365))
-David
Here is some background:
w3.ts is hourly temperature data with about 20% NA's. It contains
about 3.5 years of data.
I am using period = 365, which makes
2009 Mar 01
1
projecting GIS coordinates for analysis with spatstat package
I am working on creating an R package for doing fire department analysis and
am trying to create a function that can display emergency incident
densities. The following code sort of does the trick, but I need a display
that shows the number of incidents per square mile. I believe the code
below shows incidents per square unit (in this case, degrees lat/long).
To solve this problem, I believe
2010 Nov 25
3
How to "bin"/average" time points?
Dear all,
I am pretty new to R only having an introduction course, so please bare with
me. I am doing my PhD at The Max Planck Institute of Immunobiology where I
am analyzing some calorimetry data from some mice.
I have a spreadsheet consisting of measurements of the respiratory exchange
rate at different time points measured every 9 minutes over some days.
My goal is "bin"/average the
2018 Mar 12
1
Help on Aggregation
Dear All,
1.I have been trying to aggregate my data but I have not been getting it
correctly. In the data I want to convert hourly data into daily averages.
Here is a sample of the data:
Neph_no Date Time Temp_C Pressure_kPa RH
9 2014/03/28 10:00:00 38.4 95.9 29.7
9 2014/03/28 11:00:00 37.8 95.8 29.2
9 2014/03/28 12:00:00 36.7 95.8 35.1
9 2014/03/28 13:00:00 35.4 95.8 38.9
9