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How to extract a floating number from a string [duplicate]
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209
If your float is always expressed in decimal notation something like
>>> import re
&...
How to select the row with the maximum value in each group
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Here's a data.table solution:
require(data.table) ## 1.9.2
group <- as.data.table(group)
If you want to keep all the entries corresponding to max values of pt within each group:
group[group[, .I[pt == max(pt)], by=Subject]$V1]
# Subject pt Event
# 1: 1 5 2
# 2: ...
How do I get a platform-dependent new line character?
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//Note `%n` at end of line ^^
String s2 = String.format("Use %%n as a platform independent newline.%n");
// %% becomes % ^^
// and `%n` becomes newline ^^
See the Java 1.8 API for Formatter for more detai...
How to completely remove borders from HTML table
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182
<table cellspacing="0" cellpadding="0">
And in css:
table {border: none;}
EDIT:
As i...
iOS White to Transparent Gradient Layer is Gray
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answered Jul 22 '14 at 18:49
Eric GaoEric Gao
3,21222 gold badges1414 silver badges2626 bronze badges
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How to get a specific version of a file in Mercurial?
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edited Aug 17 '12 at 13:42
Neeme Praks
7,85944 gold badges3838 silver badges4646 bronze badges
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What is the best way to create constants in Objective-C
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2 Answers
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Argument list too long error for rm, cp, mv commands
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27 Answers
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Python - write() versus writelines() and concatenated strings
...n iterable of strings
write expects a single string.
line1 + "\n" + line2 merges those strings together into a single string before passing it to write.
Note that if you have many lines, you may want to use "\n".join(list_of_lines).
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How Python web frameworks, WSGI and CGI fit together
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How WS...