Posted by: mistan
NB: Quantitative = continuous
Categorical = Discrete
| Variable | Charts | Statistics |
|---|---|---|
| Category | Bar Chart, Pie Chart | frequencies ->Chi Square |
| Quantitative | Box Plot, Histogram | descriptive -> single mean or proportion: Hypothesis test |
geom_bar. ggplot2 0.9.3.1geom_bar. ggplot2 0.9.3.1
The bar geom is used ...
R is a free software environment for statistical computing and graphics. The following is some basics about R data types.
| vector | list | matrix | dataframe | |
|---|---|---|---|---|
| creation | c | list | matrix | data.frame |
| same type | Y | N | Y | N |
| class | class of its elements | list | matrix | data.frame |
Posted by: mistan
Adapted from org-mode official site.
Install R with binary or source code Comprehensive R Archive Network for Arch Linux, following documents here.