Displaying 2 results from an estimated 2 matches for "testcol".
2007 Jan 04
5
color of opposite sign values in filled.contour
Dear R-helpers,
I'm plotting geophysical data in the form of contours using
"filled.contour". The display would be much more effective if the areas
with negative values could be color coded
by -- say -- "cold colors" in the range of blue to green, and conversely
the areas with positive values got plotted with "warm colors", from yellow
to red.
Right now if I use
2010 Jul 28
0
Fwd: How to point a column of dataframe by a "character"
...>> Firstly,
>> for (i in 1:(dim(data)[2])){
>> model<-lm(Y~data[,i])
>
You could try instead:
model1 <- lm(Y ~ . , data=data[ , i, drop=FALSE])
I added the drop=FALSE to prevent a single column from being converted
to a nameless vector.
> testdf <- data.frame(testcol=letters[1:10], stringsAsFactors=FALSE)
> testdf[,1]
[1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j"
> testdf[,1, drop=FALSE]
testcol
1 a
2 b
3 c
4 d
5 e
6...