Re: [Gretl-users] Correlation heatplot
Am 08.01.2017 um 15:22 schrieb cociuba mihai:
The correlation plot is a great addition to Gretl!
When using the corrplot package in R a very nice feature is the
possibility to show the correlation values on the corrplot.
I've attached an image made with the corrplot package as an
example.Inline image 1
Another feature of the corrplot package is the possibility to print the
significance test results directly in the correlation plot.
This is definitely a nice feature of the correlation heat plot in R
using ggplot or similar packages. However, gnuplot does not seem to
provide an internal function to compile in particular this complex
graph. Even though it could be realized using gnuplot, I guess, this
involves quite some programming. I think one needs to rely on R (which
can always be called via gretl!) to compile this specific kind of graph.
Also the possibility to control the name of series, font size and
orientation could solve any problems arising from large datasets.
Regarding the problem of black and white the example
from https://cran.r-project.org/web/packages/corrplot/vignettes/corrplot-intro...
shows that using circles (or squares with values) would generate a nice
ready to publish image.
I think the same complexity argument can be applied here. Gnuplot, at
least I haven't found any, doesn't seem to provide this feature for heat
plots, yet.
Best,
Artur