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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
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In [43]: df['Value'] = df.apply(lambda row: my_test(row['a'], row['c']), axis=1)
In [44]: df
Out[44]:
a b c Value
0 -1.674308 foo 0.343801 0.044698
1 -2.163236 bar -2.046438 -0.116798
2 -0.199115 foo -0.458050 -0.199115
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Why does Html.ActionLink render “?Length=4”
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public static string ActionLink(this HtmlHelper htmlHelper, string linkText, string actionName, object routeValues, object htmlAttributes)
This takes a string object "Home" for routeValues, which the MVC plumbing searches for public properties turning them into route values. In the case of a str...
How do I define a method in Razor?
...herever in belongs and then invoke the method in a Razor view, and that's exactly what HTML helpers do. And they are not supposed to return always an MvcHtmlString.
– Darin Dimitrov
Mar 1 '11 at 20:27
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Replacing a char at a given index in string? [duplicate]
... a StringBuilder:
StringBuilder sb = new StringBuilder(theString);
sb[index] = newChar;
theString = sb.ToString();
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UITextfield leftView/rightView padding on iOS7
The leftView and rightView views of an UITextField on iOS7 are really close to the textfield border.
27 Answers
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Does MySQL ignore null values on unique constraints?
...multiple NULLs in a column with a unique constraint.
CREATE TABLE table1 (x INT NULL UNIQUE);
INSERT table1 VALUES (1);
INSERT table1 VALUES (1); -- Duplicate entry '1' for key 'x'
INSERT table1 VALUES (NULL);
INSERT table1 VALUES (NULL);
SELECT * FROM table1;
Result:
x
NULL
NULL
1
This is n...
Xcode 4 hangs at “Attaching to (app name)”
I just upgraded to Xcode 4 and for some reason my app won't run in the simulator or iOS device. It was working perfectly in Xcode 3, but all of a sudden now when I press run the program stops at "Attaching to...". There doesn't seem to be any other info to help with this problem either.
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How to get innerHTML of DOMNode?
...Document->saveHTML($child);
}
return $innerHTML;
}
?>
Example:
<?php
$dom= new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$dom->load($html_string);
$domTables = $dom->getElementsByTagName("table");
// Iterate over DOMN...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...s to know that the notion of "type" was invented in the 1930s, in the context of lambda calculus (in fact, even earlier, in the context of set theory). Since then, a whole branch of computational logic has emerged that is known as "type theory". Programming language theory is based on these foundati...
Difference between Apache CXF and Axis
What are the advantages of using Apache CXF over Apache Axis and vice versa?
6 Answers
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