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How to import multiple .csv files at once?
...t;-
list.files(pattern = "*.csv") %>%
map_df(~fread(.))
The stringsAsFactors = FALSE argument keeps the dataframe factor free, (and as marbel points out, is the default setting for fread)
If the typecasting is being cheeky, you can force all the columns to be as characters with the c...
Cleaning up the iPhone simulator
...up a customer's iPhone when you ship a new version with a new schema.
For extra points, after determining that you have encountered an old schema, you may want to copy the new database over without destroying the old one, and load any interesting data out of the old database, into the new one. T...
How to auto-remove trailing whitespace in Eclipse?
...with regards to Java code. If that's the case, you don't actually need any extra plugins to accomplish 1). You can just go to Preferences -> Java -> Editor -> Save Actions and configure it to remove trailing whitespace.
By the sounds of it you also want to make this a team-wide setting, ri...
How to order citations by appearance using BibTeX?
...es and rebuild.
If you use MiKTeX you shouldn't need to download anything extra.
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Breakpoint on property change
... Best solution for anyone trying to debug from dev console. No extra effort to reuse on any website, awesome!
– Chris Hayes
Jul 29 at 21:16
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...
HTML img tag: title attribute vs. alt attribute?
... to validate as an XHTML document, whereas the title attribute is just an "extra option," as it were.
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android edittext onchange listener
...d afterTextChanged(Editable arg0) {
new SearchTask().execute(seq.toString().trim());
}
});
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How do I run a rake task from Capistrano?
...eplace rake args[:command] with execute :rake, "#{args.command}[#{args.extras.join(",")}]" you can execute a task with multiple arguments like so: cap production invoke["task","arg1","arg2"]
– Robin Clowers
Sep 24 '14 at 1:19
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Git Diff with Beyond Compare
...
I don't use extra wrapper .sh files. My environment is Windows XP, git 1.7.1 on cygwin, and Beyond Compare 3. Following is my .git/config file.
[diff]
tool = bc3
[difftool]
prompt = false
[difftool "bc3"]
#use cygpath to tra...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...; OPT_INDEXES) {
return index_directory(r, d);
} else {
const char *index_names = apr_table_get(r->notes, "dir-index-names");
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01276)
"Cannot serve directory %s: No matching DirectoryIndex (%s) found, an...