Displaying 3 results from an estimated 3 matches for "check_formula".
2008 Mar 25
2
ggplot2 - facetting
...ng=aes_string(x='x',y='y'),geom='point', stat='identity')
scaleY<-scale_y_continuous()
scaleX <- scale_x_continuous()
Facets<-facet_grid(group ~ .)
plot1<-plot0+layer1 +scaleY + scaleX + facet_grid(group~.)
plot1
I always get the error message:
Error in check_formula(formula, varnames) :
Formula contains variables not in list of known variables
Thanks for any help you can provide.
Best,
Pedro
2008 Sep 28
1
reshape package does not recognize second id variable
...include a subject
identification number and a variable denoting the wave of the survey.
I used the following arguments:
library(reshape)
svy.melt <- melt(svy, id=c("id", "WAVE"))
svy.wide <- cast(svy.melt, id ~ WAVE + ...)
and got the following error:
"Error in check_formula(formula, varnames) :
Formula contains variables not in list of known variables"
I check to make sure variable name is right, and it is:
summary(svy$WAVE)
Min. 1st Qu. Median Mean 3rd Qu. Max.
1.00 1.00 1.00 1.47 2.00 2.00
________________________
I use the s...
2009 Apr 07
2
Using as.formula() with the reshape package cast
...ction.
Using reshape v. 0.7.2
I am able to properly melt() by data with:
> molten <- melt(x, id=1:2)
then I can properly cast with this:
> cast(molten, days ~ variable)
but if I try
> cast(molten, as.function("days ~ variable"))
if returns the error:
Error in check_formula(formula, varnames) :
Formula contains variables not in list of known variables
I am not sure if the problem is with cast or as.formula()
I did confirm that:
> x <- days ~ variable
> y <- as.formula("days ~ variable")
> x==y
TRUE
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