Plot in R, ggplot2
Python alternatives to ggplot2: pygg (NOT working), ggpy (ggplot in py) from yhat (NOT working and not in maintance). Please use rpy2 to “source()” R files.
Note: this blog is mainly used to prepare data, for plotting code, see:
- O’Reilly 2013 - R Graphics Cookbook
- ggplot2 cheatsheet
- Be Awesome in ggplot2: A Practical Guide, (bak)
3D PLOT #
scatter #
OBS: order of using commands.
surface #
OBS: order of using commands.
3rd dim as group for plot #
(paper 2 knn > 820_draft_plotAndTable_testCode.R)
# required data structure:
# k variable value
# 32 8 6.885871
# 64 8 7.345018
# 128 8 8.005486
# 256 8 8.964364
# 2 1 (WPC) 5.557262
# 256 1 (WPC) 5.557262
# 2 2 (WPC) 5.560053
# 256 2 (WPC) 5.560053
#
# where, k is the x-axis, varialbe is the legend/group. the top half can come from the melt(dt, id = 'k') func with data below.
#
# k 1 2 4 8 // m, predict step
# 2 7.302034 7.333397 7.396140 7.714781
# 4 6.726445 6.738969 6.790104 7.091759
# 8 6.449065 6.444127 6.534207 6.772768
# 16 6.394377 6.392157 6.462557 6.677431
# 32 6.620645 6.614758 6.682735 6.885871
# 64 7.112442 7.109090 7.168172 7.345018
MULTI-PLOT #
old base plot commands #
// ignored.
ggplot with a user-defined function #
Using just one user-defined function, easy to do.
Solution from R cookbook online. backup.
More examples of multiplot() from here. backup.
Problem: ggsave() cannot know this combined plot, need to use picture devices to save, e.g. png(...); dev.off();.
