Displaying 3 results from an estimated 3 matches for "0b6".
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2013 Feb 13
2
e1071::skewness and psych::skew return NaN
Hello everyone,
Does anyone know what would cause the skewness() function (from
e1071), as well as skew() from psych, to return a value of NaN?
I have a vector of positively-skewed data
(https://docs.google.com/file/d/0B6-m45Jvl3ZmYzlHRVRHRURzbVk/edit?usp=sharing)
which these functions return a value for like normal:
> skewness( data ) # returns 1.400405
but when I instead give those functions the log-transformed data they return NaN
> skewness( log( data ) ) #returns NaN
The same occurs when I feed the fu...
2012 Dec 05
1
duplicated() with long vectors
Hello,
duplicated() does not seem to work for a long vector. For example, if
you download the data from
https://docs.google.com/open?id=0B6-m45Jvl3ZmNmpaSlJWMXo5bmc (a vector
with about 12,000 numbers) and then run the following code which does
duplicated() over the whole vector but just shows the last 30
elements:
data.frame( tail(verylong, 30), tail(duplicated(verylong), 30) )
you'll see that at the end of the very long vector...
2012 Dec 05
1
Using multcomp::glht() with Anova object
...repeated-measures-anova-using-r/(option
3) and
http://languagescience.umd.edu/wiki/EEG#ERP_ANOVA_in_R. My ANOVA has two
factors: Condition (3 levels) and Region (6 levels) and their interaction.
Below is code to run the Anova and get the model object (the data are at
https://docs.google.com/open?id=0B6-m45Jvl3ZmOVFTYVpZYV9sUUk).
data <- as.matrix( read.table( file="EEGpriming.txt", header=T, sep="\t") )
Condition <- c( rep("Cond1", 6), rep("Cond2", 6), rep("Cond3", 6) )
Region <- factor( rep( c("la", "ma", "ra&...