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pandas dataframe columns scaling with sklearn
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df_norm = (df - df.min()) / (df.max() - df.min())
print df_norm
print pd.concat((df_norm, dfTest.C),1)
A B
0 0.000000 0.000000
1 0.926219 0.363636
2 0.935335 0.628645
3 1.000000 0.961407
4 0.938495 1.000000
A B C
0 0.000000 0.000000 big
1 0...
Intersection and union of ArrayLists in Java
... I also don't see how addAll() is union for lists; it's just concatenating the second list onto the end of the first. A union operation would avoid adding an element if the first list already contains it.
– dimo414
Oct 26 '16 at 6:23
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How to get current page URL in MVC 3
...ty(knownRequestHeader))
{
this._url = new Uri(string.Concat(new string[]
{
this._wr.GetProtocol(),
"://",
knownRequestHeader,
this.Path,
text
}));
}
}
catch ...
What are the new documentation commands available in Xcode 5? [closed]
...e brief text (with no formatting); if no brief text exists, it will show a concatenation of all the text up to the first @block; if none exists (e.g. you begin with @return), then it will concat all the text striping away all @commands.
2. Option-clicking an identifier name:
3. In the Quick Help...
How to run multiple shells on Emacs
...me:")
(let ((shell-name (read-string "shell name: " nil)))
(shell (concat "*" shell-name "*"))))
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How to split the name string in mysql?
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DECLARE delim VARCHAR(1);
SET delim = '|';
SET inipos = 1;
SET fullstr = CONCAT(fullstr, delim);
SET maxlen = LENGTH(fullstr);
REPEAT
SET endpos = LOCATE(delim, fullstr, inipos);
SET item = SUBSTR(fullstr, inipos, endpos - inipos);
IF item <> '' AND item IS NOT NULL THEN ...
Concatenating Files And Insert New Line In Between Files
I have multiple files which I want to concat with cat .
Let's say
7 Answers
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Calculate a MD5 hash from a string
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... in which case, I propose return string.Concat( hash.ComputeHash( Encoding.UTF8.GetBytes(observedText) ).Select( x => x.ToString("x2") ) ); instead. It's a little bit shorter, possibly clearer intention, and performs marginally faster (<10% perf. increase).
...
ORA-00979 not a group by expression
...n in scope, but not group by it (assuming these are numbers, otherwise use CONCAT)
SELECT MAX(unique_id_col) AS unique_id_col, COUNT(1) AS cnt
FROM yourTable GROUP BY col_A, (unique_id_col*0 + col_A);
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DbEntityValidationException - How can I easily tell what caused the error?
...eption message with the new one.
var exceptionMessage = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage);
// Throw a new DbEntityValidationException with the improved exception message.
throw new DbEntityValidationException(excep...