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Selecting a row of pandas series/dataframe by integer index
...
@kilojoules .iloc looks things up by their order in the index (e.g. .iloc[[2]]) is the second "row" in df. That row happens to be at index location 4. .loc looks them up by their index value. So maybe "iloc" is like "i" as in A[i]? :)
– Jim K...
LINQ where vs takewhile
...
The order of the sequence passed is absolutely critical with TakeWhile, which will terminate as soon as a predicate returns false, whereas Where will continue to evaluate the sequence beyond the first false value.
A common usage...
SQL update query using joins
...
UPDATE im
SET mf_item_number = gm.SKU --etc
FROM item_master im
JOIN group_master gm
ON im.sku = gm.sku
JOIN Manufacturer_Master mm
ON gm.ManufacturerID = mm.ManufacturerID
WHERE im.mf_item_number like 'STA%' AND
gm.manufacturerID = 34
To make it cl...
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
...hange to another Login user. So we need to change the file like:
sudo vi /etc/profile or sudo vi /etc/bashrc
And then add the two line in the following files
export LC_ALL="en_US.UTF-8"
export LANG="en_US.UTF-8"
Remember do not miss one of them, it doesn't work for me just $LANG or $LC_ALL. Af...
Find and kill a process in one line using bash and regex
...lumn 2: awk '{print $2}'
sudo is optional
Run kill -9 5124, kill -9 5373 etc (kill -15 is more graceful but slightly slower)
Bonus:
I also have 2 shortcut functions defined in my .bash_profile
(~/.bash_profile is for osx, you have to see what works for your *nix machine).
p keyword
lists ...
split string only on first instance - java
...erminated by the end of the string. The substrings in the array are in the order in which they occur in this string. If the expression does not match any part of the input then the resulting array has just one element, namely this string.
The limit parameter controls the number of times the pa...
What is the difference between SQL, PL-SQL and T-SQL?
... management systems: SQL Server, Oracle, MySQL, PostgreSQL, DB2, Informix, etc.
PL/SQL is a proprietary procedural language used by Oracle
PL/pgSQL is a procedural language used by PostgreSQL
TSQL is a proprietary procedural language used by Microsoft in SQL Server.
Procedural languages are design...
Finding what branch a Git commit came from
...ery interesting:
SYNOPSIS
git-what-branch [--allref] [--all] [--topo-order | --date-order ]
[--quiet] [--reference-branch=branchname] [--reference=reference]
<commit-hash/tag>...
OVERVIEW
Tell us (by default) the earliest causal path of commits and merges to cause the requested...
“Comparison method violates its general contract!”
...ode:
public int compareTo(tfidfContainer compareTfidf) {
//descending order
if (this.tfidf > compareTfidf.tfidf)
return -1;
else if (this.tfidf < compareTfidf.tfidf)
return 1;
else
return 0;
}
The transitive property clearly holds, but for some re...
How to include view/partial specific styling in AngularJS
...file1(.css),file2,file3 and server would respond with all 3 files in given order and concatenated.
– Petr Urban
Jun 6 '16 at 18:48
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