12 Course summary
Index of functions used throughout the course
| function | package | description | |
|---|---|---|---|
| 1 | ggpairs() | GGally | |
| 2 | all.equal() | base | |
| 3 | anyNA() | base | check if there are any NA in a vector/list |
| 4 | as.character() | base | coerce a vector to character |
| 5 | as.factor() | base | coerce a vector to factor |
| 6 | as.numeric() | base | coerce a vector to numeric |
| 7 | c() | base | Combine values/vectors into a vector |
| 8 | class() | base | retrieve class of an R object (e.g. ‘numeric’, ‘list’, ‘data.frame’) |
| 9 | data.frame() | base | create a data.frame from vectors |
| 10 | dim() | base | get dimensions of a data frame |
| 11 | exp() | base | exponent |
| 12 | expression() | base | Used in plots to add symbols to axes |
| 13 | factor() | base | create a factor |
| 14 | identical() | base | check if two R objects are identical |
| 15 | ifelse() | base | return a or b depending on the value of test |
| 16 | is.character() | base | check if vector is character |
| 17 | is.data.frame() | base | check if an object is a data frame |
| 18 | is.factor() | base | check if a vector is of class ‘factor’ |
| 19 | is.na() | base | check if a value is NA/elements of vector are NA |
| 20 | is.numeric() | base | check if vector is numeric |
| 21 | is.vector() | base | check if an object is a vector |
| 22 | length() | base | get number of elements in a vector or list |
| 23 | levels() | base | get levels of a factor |
| 24 | library() | base | load an R package |
| 25 | list() | base | create a list |
| 26 | log() | base | log (default base = e) |
| 27 | max() | base | get maximum of a vector |
| 28 | mean() | base | get mean of a vector |
| 29 | min() | base | get minimum of a vector |
| 30 | names() | base | retrieve names of a list/vector |
| 31 | nchar() | base | get number of characters in a string |
| 32 | ncol() | base | get number of columns of a data frame |
| 33 | nrow() | base | get number of rows of a data frame |
| 34 | numeric() | base | initialize a numeric vector |
| 35 | order() | base | get indexes that will sort a vector |
| 36 | paste() | base | |
| 37 | print() | base | print object to the console |
| 38 | prop.table() | base | transform frequency table into table of proportions |
| 39 | rank() | base | rank the values of a vector |
| 40 | rep() | base | repeat a value or a vector N times |
| 41 | rowSums() | base | get sums of a data frame by rows |
| 42 | rownames() | base | get row names of a data frame |
| 43 | sapply() | base | apply function to each element of a list |
| 44 | seq() | base | create a sequence |
| 45 | sort() | base | sort the values. Specify decreasing = FALSE to sort in decreasing order |
| 46 | split() | base | split list based on a function/vector |
| 47 | sqrt() | base | square root |
| 48 | subset() | base | filter out rows of a data frame according to logical vector |
| 49 | sum() | base | get sum of numeric values or a vector |
| 50 | summary() | base | Obtain summary statistics or detailed regression output |
| 51 | table() | base | obtain frequency table of a variable/cross-tabulation of two variables |
| 52 | unique() | base | get unique elements |
| 53 | unlist() | base | |
| 54 | vapply() | base | |
| 55 | which() | base | return indexes of TRUE entries of a logical vector |
| 56 | which.max() | base | return index of the largest value in a vector |
| 57 | which.min() | base | return index of the smallest value in a vector |
| 58 | with() | base | evaluate expression in the context of a data frame (without using the “$” operator) |
| 59 | colnames() | c(".GlobalEnv", "base") | retrieve column names of a data frame |
| 60 | filter() | c("dplyr", "package:stats") | filter out rows of a data frame according to logical vector |
| 61 | lag() | c("dplyr", "package:stats") | lag observations by n periods |
| 62 | glimpse() | c("dplyr", "package:tibble") | |
| 63 | tibble() | c("dplyr", "package:tidyr", "package:tibble") | |
| 64 | plot() | c("graphics", "package:base") | Generic function from base R to produce a plot |
| 65 | cov() | c("pROC", "package:stats") | |
| 66 | var() | c("pROC", "package:stats") | |
| 67 | plot_grid() | cowplot | |
| 68 | theme_cowplot() | cowplot | |
| 69 | arrange() | dplyr | sort values of data frame according to a variable/combination of varaibles |
| 70 | full_join() | dplyr | join matching all observations from both data frames |
| 71 | group_by() | dplyr | group tibble/data.frame by a factor variable. All further tidyverse operations are performed group-wise |
| 72 | inner_join() | dplyr | join matching only observations with joining variable in both data frames |
| 73 | left_join() | dplyr | join matching all observations from the left data frame |
| 74 | mutate() | dplyr | modify/create a column in a data frame |
| 75 | n() | dplyr | |
| 76 | recode() | dplyr | Recode a variable |
| 77 | select() | dplyr | select columns from a tibble/data frame |
| 78 | summarise() | dplyr | collapse the dataset to a summary statistic. Usually used with group_by() |
| 79 | ungroup() | dplyr | |
| 80 | aes() | ggplot2 | |
| 81 | coord_flip() | ggplot2 | |
| 82 | cut_width() | ggplot2 | |
| 83 | element_blank() | ggplot2 | |
| 84 | element_line() | ggplot2 | |
| 85 | element_rect() | ggplot2 | |
| 86 | element_text() | ggplot2 | Customise text in GGPLOT2 |
| 87 | facet_grid() | ggplot2 | |
| 88 | facet_wrap() | ggplot2 | |
| 89 | geom_bar() | ggplot2 | |
| 90 | geom_boxplot() | ggplot2 | |
| 91 | geom_col() | ggplot2 | |
| 92 | geom_density() | ggplot2 | |
| 93 | geom_errorbar() | ggplot2 | |
| 94 | geom_histogram() | ggplot2 | |
| 95 | geom_hline() | ggplot2 | Add a horizontal line in GGPLOT2 |
| 96 | geom_line() | ggplot2 | |
| 97 | geom_point() | ggplot2 | |
| 98 | geom_smooth() | ggplot2 | |
| 99 | geom_violin() | ggplot2 | |
| 100 | geom_vline() | ggplot2 | |
| 101 | ggplot() | ggplot2 | Create a ggplot graph |
| 102 | ggsave() | ggplot2 | |
| 103 | ggtitle() | ggplot2 | |
| 104 | labs() | ggplot2 | Customise labels in GGPLOT2 |
| 105 | labs() | ggplot2 | Add a vertical line in GGPLOT2 |
| 106 | scale_color_discrete() | ggplot2 | |
| 107 | scale_x_continuous() | ggplot2 | Customise continuous x axis |
| 108 | scale_y_continuous() | ggplot2 | Customise continuous y axis |
| 109 | stat_summary() | ggplot2 | |
| 110 | theme() | ggplot2 | Set theme for GGPLOT2 |
| 111 | theme_bw() | ggplot2 | |
| 112 | theme_classic() | ggplot2 | |
| 113 | theme_grey() | ggplot2 | |
| 114 | theme_minimal() | ggplot2 | |
| 115 | theme_set() | ggplot2 | |
| 116 | ylab() | ggplot2 | |
| 117 | rgnorm() | gnorm | |
| 118 | axis() | graphics | |
| 119 | barplot() | graphics | plot a simple bar plot |
| 120 | boxplot() | graphics | plot a simple box plot |
| 121 | hist() | graphics | plot a simple histogram |
| 122 | legend() | graphics | |
| 123 | pairs() | graphics | |
| 124 | par() | graphics | set parameters of the plotting device |
| 125 | segments() | graphics | |
| 126 | text() | graphics | |
| 127 | read_dta() | haven | |
| 128 | write_dta() | haven | |
| 129 | auc() | pROC | Calculate area under ROC Curve |
| 130 | roc() | pROC | Estimate ROC Curve |
| 131 | col_factor() | readr | specify column type as factor. Used in readr’s functions. |
| 132 | read_csv() | readr | read tibble from a csv file |
| 133 | read_delim() | readr | read tibble from a delimited file |
| 134 | read_excel() | readxl | |
| 135 | IQR() | stats | obtain the inter-quartile range of a vector |
| 136 | binomial() | stats | |
| 137 | complete.cases() | stats | retrieve indices of complete observations |
| 138 | contrasts() | stats | |
| 139 | cor() | stats | |
| 140 | glm() | stats | Estimate a General Linear Model |
| 141 | lm() | stats | |
| 142 | median() | stats | |
| 143 | na.omit() | stats | |
| 144 | pnorm() | stats | |
| 145 | predict() | stats | Predict Probability |
| 146 | pt() | stats | |
| 147 | quantile() | stats | obtain empirical quantiles of a vector |
| 148 | relevel() | stats | |
| 149 | rnorm() | stats | |
| 150 | sd() | stats | Get standard deviation of a vector |
| 151 | t.test() | stats | |
| 152 | is_tibble() | tibble | |
| 153 | pivot_longer() | tidyr | reshape data wide → long |
| 154 | pivot_wider() | tidyr | reshape data long → wide |
| 155 | data() | utils | |
| 156 | head() | utils | show first 5 rows of a data frame |
| 157 | head() | utils | print first n (default 5) rows of the data |
| 158 | read.csv() | utils | read a csv file to data frame. Specify stringsAsFactors = FALSE to keep all string columns as characters |
| 159 | str() | utils | get the structure of an R object |
| 160 | write.csv() | utils | write a csv file to a data frame |
Showing 1 to 160 of 160 entries