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Scheduling R Script
..., to run scheduler first install below packages
install.packages('data.table')
install.packages('knitr')
install.packages('miniUI')
install.packages('shiny')
install.packages("taskscheduleR", repos = "http://www.datatailor.be/rcube", type =
"source")
After installing go to
**TOOLS...
How to Use Order By for Multiple Columns in Laravel 4?
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Is there a way to add an orderBy on an established query?
– Rafael
Jan 16 '15 at 21:43
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Is there an opposite to display:none?
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When changing element's display in Javascript, in many cases a suitable option to 'undo' the result of element.style.display = "none" is element.style.display = "". This removes the display declaration from the style attribute, reverting the actual value of display property to the value set...
PowerShell script to return versions of .NET Framework on a machine?
...me, Version, Release
Based on the MSDN article, you could build a lookup table and return the marketing product version number for releases after 4.5:
$Lookup = @{
378389 = [version]'4.5'
378675 = [version]'4.5.1'
378758 = [version]'4.5.1'
379893 = [version]'4.5.2'
393295 = [v...
SHA512 vs. Blowfish and Bcrypt [closed]
...nd others. It's good, but flaws have been recognized that, while not exploitable now, have led to the the SHA-3 competition for new hash algorithms. Also, keep in mind that the study of hash algorithms is "newer" than that of ciphers, and cryptographers are still learning about them.
Even though bc...
Discuz轻松生成sitemaps.xml网站地图 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...temap/0.9/sitemap.xsd\">\n";
$querys = DB::query("SELECT a.tid FROM ".DB::table('forum_thread')." a inner join ".DB::table('forum_forum')." b on a.fid=b.fid ORDER BY a.tid DESC LIMIT 0,10000");
while($threadfid = DB::fetch($querys))
{
$turl=$web_root.'thread-'.$threadfid['tid'].'-1-1.html';//注...
Drop data frame columns by name
...multiple variables:
within(df, rm(x, y))
Or if you're dealing with data.tables (per How do you delete a column by name in data.table?):
dt[, x := NULL] # Deletes column x by reference instantly.
dt[, !"x"] # Selects all but x into a new data.table.
or for multiple variables
dt[, c("x","y...
Switch on Enum in Java [duplicate]
...r speed, the switch statement approach might be faster because it's just a table lookup in the bytecode. With your approach, you have to push a new function onto the stack. It's a micro-optimization, but if speed is super important it's something to keep in mind.
– DIMMSum
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Download file of any type in Asp.Net MVC using FileResult?
... @MohammedNoureldin it is not "figuring" it, there is a simple mapping table based on file extensions or something like that. The server does it for all static files, it is not slow.
– Al Kepp
Jul 26 '19 at 9:59
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Can you do greater than comparison on a date in a Rails 3 search?
... a user_id field. Using the raw SQL notation means you need to include the table clarifications yourself, eg: where("notes.user_id = ?",current_user.id).
– DreadPirateShawn
Jul 13 '14 at 10:03
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