theme_classic
{GGPLOT2}
A minimalistic theme with no gridlines
geom_jitter
{GGPLOT2}
Add randomly displaced points to reduce overplotting
list
{base}
Create a list object
table
{base}
Obtain frequency table of a variable/cross-tabulation of two variables
filter
{dplyr}
Filter out rows of a data frame according to logical vector
with
{base}
evaluate expression in the context of a data frame
subset
{base}
Return subsets of vectors, matrices or data frames which meet conditions.
summarise
{dplyr}
collapse the dataset to a summary statistic. Usually used with group_by()
cor.test
{stats}
Test for Association/Correlation Between Paired Samples
replace
{base}
Replace elements in a vector
xlab
{GGPLOT2}
Label the x axis (ggplot)
is.na
{base}
Check if a value is NA/elements of vector are NA
sum
{base}
Get sum of numeric values or a vector
factor
{base}
Create a factor
read.csv
{utils}
Read a csv file to data frame. Specify stringsAsFactors = FALSE to keep all string columns as characters
round
{base}
Rounds numbers
summary
{base}
Obtain summary statistics or detailed regression output
write.csv
{utils}
write a csv file to a data frame
lm
{stats}
Fit linear models using least squares
as.integer
{base}
Convert an object to integer values
sd
{stats}
Get standard deviation of a vector
scale_x_continuous
{GGPLOT2}
Customise continuous x axis
geom_vline
{GGPLOT2}
Draws a vertical line
read_excel
{readxl}
Read an Excel file
labs
{GGPLOT2}
Customise labels in GGPLOT2
ggsave
{GGPLOT2}
Save a ggplot to file
group_tt
{tinytable}
Grouping in tinytable
theme
{GGPLOT2}
Customize ggplot themes
geom_smooth
{GGPLOT2}
Generates a smoothed conditional means curve / line
factor
{base}
Create factor variables
library
{base}
Load an R package
complete.cases
{stats}
Find Complete Cases
mean
{base}
Get mean of a vector
recode
{dplyr}
Recode a variable
group_by
{dplyr}
Group tibble/data.frame by a factor variable. All further tidyverse operations are performed group-wise
geom_point
{GGPLOT2}
Generates a scatter plot
c
{base}
Combine values/vectors into a vector
ggtitle
{GGPLOT2}
Generates a title for a ggplot graph
element_line
{GGPLOT2}
Customise line appearance
mutate
{dplyr}
Create new variables
names
{base}
Get or set names of an object
matrix
{base}
Creates a matrix from the given set of values.
class
{base}
Retrieve class of an R object
chisq.test
{stats}
Chi-Squared test (e.g. for cross-tabulations)
prop.table
{base}
Transform frequency table into table of proportions
ggplot
{GGPLOT2}
Create a ggplot graph
setwd
{base}
Set Working Directory
save_tt
{tinytable}
Save a tinytable object to a file
margin
{GGPLOT2}
Set margins around plot elements (used inside theme elements)
pwr.r.test
{pwr}
Power analysis for correlation tests
vdem
{vdemdata}
V-Dem country-year dataset
datasummary
{modelsummary}
Create customizable summary-statistics tables
scale_y_continuous
{GGPLOT2}
Customise continuous y axis
cut
{base}
Convert Numeric to Factor
read_csv
{readr}
Read CSV files
correlation_matrix
{corrtable}
Create a formatted correlation matrix of variables
data.frame
{base}
Create a data.frame from vectors
dim
{base}
Get dimensions of a data frame
aes
{GGPLOT2}
Construct aesthetic mapping of a ggplot graph
as.numeric
{base}
Coerce a vector to numeric
element_blank
{GGPLOT2}
This theme element draws nothing, and assigns no space
element_text
{GGPLOT2}
Customise text in GGPLOT2
attach
{base}
Attach Set of R Objects to Search Path
save_plot
{cowplot}
Save a plot to a file
ylab
{GGPLOT2}
Label the y axis (ggplot)
geom_hline
{GGPLOT2}
Add a horizontal line in GGPLOT2
as.character
{base}
Coerce a vector to character
select
{dplyr}
Select columns from a tibble/data frame
modelsummary
{modelsummary}
Creates regression and data tables
confint
{stats}
Calculate confidence Intervals for Model Parameters
The end!