I'm very new to R, so please forgive me if I just missed the answer in
existing documentation...
I have a data set with at least three columns, X, Y, and Z.
I want to produce a chart where one axis shows all the unique values of X,
and the other axis shows all the unique values of Y. Each cell
Christian Convey wrote:
I'm very new to R, so please forgive me if I just missed the answer in
existing documentation...
I have a data set with at least three columns, X, Y, and Z.
I want to produce a chart where one axis shows all the unique values of X,
and the other axis shows all the
I'm not sure I understand the question, but you might look into the
following functions:
unique
heatmap
image
Again, if I understand the question, you would create a length(unique
(x)) by length(unique(y)) sized matrix, and fill it with appropriate
values of z. Then pass that to heatmap or
Thanks, let me try to clarify my question with an example.
Suppose I have the following data:
Gender, Major, Course-Grade
F, Psy, 3.5
F, Psy, 3.1
M, Hst, 3.7
F, Hst, 3.6
M, Hst, 2.6
M, Eng, 3.9
I want to compute a table like the following:
X-axis: Gender
Y-axis: Major
Cell(x,y) = mean
On Wed, 2006-11-15 at 15:03 -0500, Christian Convey wrote:
Thanks, let me try to clarify my question with an example.
Suppose I have the following data:
Gender, Major, Course-Grade
F, Psy, 3.5
F, Psy, 3.1
M, Hst, 3.7
F, Hst, 3.6
M, Hst, 2.6
M, Eng, 3.9
I want to compute a
Marc's solution looks a bit easier but here are a few more anyways:
# 1
reshape(DF, dir = wide, timevar = Gender, idvar = Major)
# 2
library(reshape)
DFm - melt(DF, id = 1:2)
cast(DFm, Major ~ Gender, fun = mean)
On 11/15/06, Christian Convey [EMAIL PROTECTED] wrote:
Thanks, let me try to
That did it! Thanks Marc.
- Christian
On 11/15/06, Marc Schwartz [EMAIL PROTECTED] wrote:
On Wed, 2006-11-15 at 15:03 -0500, Christian Convey wrote:
Thanks, let me try to clarify my question with an example.
Suppose I have the following data:
Gender, Major, Course-Grade
F, Psy,
