Pavel Paramonov multidis

## BibTexCiteKeyForMarkdown.js
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  "translatorType": 3,
	"label": "BibTeX key for Markdown",
	"creator": "created by liob based on the works of Peter O'Brien, Simon Kornblith and Richard Karnesky",
	"target": "bib",
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## zim_wiki.md

      
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                multidis
                / zim_wiki.md
            
            
              Created
              November 29, 2013 23:05
            
              
                [Zim wiki](http://zim-wiki.org/) on Ubuntu machine.
              
          
    Zim wiki setup

Add Ubuntu repository:
sudo add-apt-repository ppa:jaap.karssenberg/zim
and install zim package.
Settings


remember tray icon
can enable attachment panel if needed depeonding on a wiki


## duplicity_backup_restore.sh
### duplicity command examples
###  http://www.nongnu.org/duplicity/duplicity.1.html

## backup home dir to remote drive
##   NOTE: can use GUI for that

## list of files backed up on a mounted drive
duplicity list-current-files --no-encryption file:///media/USB300G/full-backup-dir-with-archives > /home/user/restore/list.txt
## NOTE: may run really long and create hundreds of Mb file if a lot was backed up

## regex_misc.sh
## extract part of a string with grep
echo "12 BBQ ,45 rofl, 89 lol"|grep -P '\d+ (?=rofl)' -o
##  -P means Perl-style regex, -o means match only not the full line

## extract part of a line from every line in a file $FILE
grep -P 'home.*' -o "$FILE" | while read -r line ; do
    echo "$line"
    ## do something with extracted string
    ## e.g. capture part of it into another variable
    VARNAME=$(echo "$line"|grep -P "$DIR.*" -o)

## R_RStudio_ubuntu.sh
### R setup from specific CRAN mirror: cran.cnr.berkeley.edu

## make sure backports is checked in software sources/updates tab
## add repository instructions http://cran.r-project.org/bin/linux/ubuntu/README
sudo gedit /etc/apt/sources.list ## or better from GUI-Synaptic to check correct URL
##  add:
##    deb http://cran.cnr.berkeley.edu/bin/linux/ubuntu precise/

## add secure key required for mirror reporitories
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9

## wget_flags.sh
## recursively grab web-directory content
wget -r --no-parent http://mysite.com/dir/
## NOTE: no-parent option to avoid following links that lead higher than the directory we want

## R_xml_read_excel.r
library(XML)

#file.xml <- # assign it

## list of row-nodes
lsrows <- xmlChildren(xmlRoot(xmlTreeParse(file.xml))[["Worksheet"]][["Table"]])

## row names are lsrows[[1]]
nms.rows <- xmlSApply(lsrows[[1]], xmlValue)

## FP_closure.jl
power(expon) = x -> x^expon

square = power(2)
square(2)

cube = power(3)
cube(2)

## string_split.r
## split on any punctuation or space, common in web form submissions/survey text answers
unlist(strsplit(s, split="[[:punct:][:space:]]"))

## ggplot_bar_stack.r
## simplest case of counts-based bar graph
gpb <- ggplot(dfstr, aes(x=factor(age)))
gpb + geom_bar(stat="bin")

## add bar fill by another factor: add fill aes
gpb <- ggplot(dfstr, aes(x=factor(age), fill=factor(gender)))
gpb + geom_bar(stat="bin")

## when bar composition comes from different dataframe columns
gp <- ggplot(dfnum)
	{
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	"translatorType": 3,
	"label": "BibTeX key for Markdown",
	"creator": "created by liob based on the works of Peter O'Brien, Simon Kornblith and Richard Karnesky",
	"target": "bib",
	"minVersion": "2.1.9",
	"maxVersion": null,
	"priority": 200,
	"inRepository": true,
	### duplicity command examples
	### http://www.nongnu.org/duplicity/duplicity.1.html

	## backup home dir to remote drive
	## NOTE: can use GUI for that

	## list of files backed up on a mounted drive
	duplicity list-current-files --no-encryption file:///media/USB300G/full-backup-dir-with-archives > /home/user/restore/list.txt
	## NOTE: may run really long and create hundreds of Mb file if a lot was backed up
	## extract part of a string with grep
	echo "12 BBQ ,45 rofl, 89 lol"\|grep -P '\d+ (?=rofl)' -o
	## -P means Perl-style regex, -o means match only not the full line

	## extract part of a line from every line in a file $FILE
	grep -P 'home.*' -o "$FILE" \| while read -r line ; do
	echo "$line"
	## do something with extracted string
	## e.g. capture part of it into another variable
	VARNAME=$(echo "$line"\|grep -P "$DIR.*" -o)
	### R setup from specific CRAN mirror: cran.cnr.berkeley.edu

	## make sure backports is checked in software sources/updates tab
	## add repository instructions http://cran.r-project.org/bin/linux/ubuntu/README
	sudo gedit /etc/apt/sources.list ## or better from GUI-Synaptic to check correct URL
	## add:
	## deb http://cran.cnr.berkeley.edu/bin/linux/ubuntu precise/

	## add secure key required for mirror reporitories
	sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9
	## recursively grab web-directory content
	wget -r --no-parent http://mysite.com/dir/
	## NOTE: no-parent option to avoid following links that lead higher than the directory we want
	library(XML)

	#file.xml <- # assign it

	## list of row-nodes
	lsrows <- xmlChildren(xmlRoot(xmlTreeParse(file.xml))[["Worksheet"]][["Table"]])

	## row names are lsrows[[1]]
	nms.rows <- xmlSApply(lsrows[[1]], xmlValue)
	power(expon) = x -> x^expon

	square = power(2)
	square(2)

	cube = power(3)
	cube(2)
	## split on any punctuation or space, common in web form submissions/survey text answers
	unlist(strsplit(s, split="[[:punct:][:space:]]"))
	## simplest case of counts-based bar graph
	gpb <- ggplot(dfstr, aes(x=factor(age)))
	gpb + geom_bar(stat="bin")

	## add bar fill by another factor: add fill aes
	gpb <- ggplot(dfstr, aes(x=factor(age), fill=factor(gender)))
	gpb + geom_bar(stat="bin")

	## when bar composition comes from different dataframe columns
	gp <- ggplot(dfnum)