diff options
| -rw-r--r-- | bash.html.markdown | 26 | ||||
| -rw-r--r-- | matlab.html.markdown | 6 | ||||
| -rw-r--r-- | r.html.markdown | 11 | ||||
| -rw-r--r-- | tmux.html.markdown | 3 |
4 files changed, 37 insertions, 9 deletions
diff --git a/bash.html.markdown b/bash.html.markdown index b0011420..3b163638 100644 --- a/bash.html.markdown +++ b/bash.html.markdown @@ -241,4 +241,30 @@ grep "^foo.*bar$" file.txt grep -c "^foo.*bar$" file.txt # if you literally want to search for the string, and not the regex, use fgrep (or grep -F) fgrep "^foo.*bar$" file.txt + + +# Read Bash shell builtins documentation with the bash 'help' builtin: +help +help help +help for +help return +help source +help . + +# Read Bash manpage documentation with man +apropos bash +man 1 bash +man bash + +# Read info documentation with info (? for help) +apropos info | grep '^info.*(' +man info +info info +info 5 info + +# Read bash info documentation: +info bash +info bash 'Bash Features' +info bash 6 +info --apropos bash ``` diff --git a/matlab.html.markdown b/matlab.html.markdown index 121f16de..2b9077d5 100644 --- a/matlab.html.markdown +++ b/matlab.html.markdown @@ -15,10 +15,12 @@ If you have any feedback please feel free to reach me at ```matlab % Comments start with a percent sign. -%{ Multi line comments look +%{ +Multi line comments look something like -this %} +this +%} % commands can span multiple lines, using '...': a = 1 + 2 + ... diff --git a/r.html.markdown b/r.html.markdown index 7cb56fd7..c555d748 100644 --- a/r.html.markdown +++ b/r.html.markdown @@ -179,7 +179,7 @@ c(3,3,3,2,2,1) # 3 3 3 2 2 1 # You can also have infinitely large or small numbers class(Inf) # "numeric" class(-Inf) # "numeric" -# You might use "Inf", for example, in integrate( dnorm(x), 3, Inf); +# You might use "Inf", for example, in integrate(dnorm, 3, Inf); # this obviates Z-score tables. # BASIC ARITHMETIC @@ -236,11 +236,12 @@ c('Z', 'o', 'r', 'r', 'o') == "Z" # TRUE FALSE FALSE FALSE FALSE # FACTORS # The factor class is for categorical data # Factors can be ordered (like childrens' grade levels) or unordered (like gender) -factor(c("female", "female", "male", "NA", "female")) -# female female male NA female -# Levels: female male NA +factor(c("female", "female", "male", NA, "female")) +# female female male <NA> female +# Levels: female male # The "levels" are the values the categorical data can take -levels(factor(c("male", "male", "female", "NA", "female"))) # "female" "male" "NA" +# Note that missing data does not enter the levels +levels(factor(c("male", "male", "female", NA, "female"))) # "female" "male" # If a factor vector has length 1, its levels will have length 1, too length(factor("male")) # 1 length(levels(factor("male"))) # 1 diff --git a/tmux.html.markdown b/tmux.html.markdown index de3a8341..9eb96303 100644 --- a/tmux.html.markdown +++ b/tmux.html.markdown @@ -2,8 +2,7 @@ category: tool tool: tmux contributors: - - ["kaernyk", "https://github.com/kaernyk"] - - ["jmaud", "https://github.com/jmaud"] + - ["wzsk", "https://github.com/wzsk"] filename: LearnTmux.txt --- |