Jose Manuel Vera verajosemanuel

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Data Scientist. Python & R coder. rOpenSpain Founder Member.

verajosemanuel / remove_containing.sh

Last active November 14, 2017 09:29

#sed remove line containing pattern #bash #regex

sed '/pattern/ {$!N;d;}'

verajosemanuel / delete_from_pattern_to_end.sh

Last active November 14, 2017 09:29

#sed delete from pattern to end of #files #regex #bash

sed '/pattern/,$d'

verajosemanuel / sed_insert_between_patterns.sh

Last active November 14, 2017 09:29

#sed insert character/s between two patterns #regex #bash

	# here, inserting tab between
	sed -r 's/(pattern1)(pattern2)/\1\t\2/g'

verajosemanuel / get_df_name.R

Last active November 14, 2017 09:27

get object name, not content in #R

	# for just one object

	deparse(substitute(my.object))


	#for a bunch of objects of the same class

	# as string
	dfs <- names(which(unlist(eapply(.GlobalEnv,is.data.frame))))

verajosemanuel / add_comment.R

Last active November 14, 2017 09:27

add comment #metadata to object in #R

	# set comment

	comment(my_data_frame) <- "This is a comment"


	# return comment

	comment(my_data_frame)

	[1] "This is a comment"

verajosemanuel / return_several_data_frames_from_function.R

Last active November 14, 2017 09:27

return more than one #df from inside a #function in #R

	# be warned this is not a very proper way of R programming
	# if you need to promote objects from inside function to
	# parent environment better think twice

	myfunc <- function(x) {

	# do something like manipulating data and returning several df
	# .........
	# .....

verajosemanuel / basename.sh

Last active November 14, 2017 09:26

Get basename no matter extension inside while #loop #bash

verajosemanuel / extension_count.sh

Last active November 14, 2017 09:26

Get #files extension for counting filetype #bash

	if [ ${f: -4} == ".pdf" ];then ((pdffiles++)); fi
	if [ ${f: -5} == ".docx" ];then ((docxfiles++)); fi

verajosemanuel / check_contains_values.sh

Last active November 14, 2017 09:25

#bash check if variable contains values or is empty

	if [[ -z "${myVar// }" ]];then # if myVar is empty
	# do something
	fi


	if [[ -n "${myVar// }" ]];then # if myVar is NOT empty
	# do something
	fi

verajosemanuel / variable_contains.sh

Last active November 14, 2017 09:25

#sql like in #bash variable