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Making heatmap from pandas DataFrame
I have a dataframe generated from Python's Pandas package. How can I generate heatmap using DataFrame from pandas package.
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FFMPEG (libx264) “height not divisible by 2”
...width by 2
Round it up to the nearest pixel
Multiply it by 2 again, thus making it an even number
Add black padding pixels up to this number
You can change the color of the padding by adding filter parameter :color=white. See the documentation of pad.
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Easiest way to open a download window without navigating away from the page
...navigating away from the current page, or opening popups, which doesn't work well in Internet Explorer(IE) 6.
12 Answers
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How to enter a multi-line command
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You can use a space followed by the grave accent (backtick):
Get-ChildItem -Recurse `
-Filter *.jpg `
| Select LastWriteTime
However, this is only ever necessary in such cases as shown above. Usually you get automatic line continuation when a command cannot syntactically...
Getting “NoSuchMethodError: org.hamcrest.Matcher.describeMismatch” when running test in IntelliJ 10.
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Make sure the hamcrest jar is higher on the import order than your JUnit jar.
JUnit comes with its own org.hamcrest.Matcher class that is probably being used instead.
You can also download and use the junit-dep-4.10.jar inste...
NullPointerException in Java with no StackTrace
...ur Java code catch a NullPointerException , but when I try to log the StackTrace (which basically ends up calling Throwable.printStackTrace() ), all I get is:
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Is an empty href valid?
...mpty string can’t be a URI. However, the href attribute doesn’t only take URIs as value, but also URI references. An empty string may be a URI reference.
HTML 4.01
HTML 4.01 uses RFC 2396, where it says in section 4.2. Same-document References (bold emphasis mine):
A URI reference that doe...
Unicode character in PHP string
This question looks embarrassingly simple, but I haven't been able to find an answer.
8 Answers
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Using Default Arguments in a Function
...m confused about default values for PHP functions. Say I have a function like this:
12 Answers
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Tips for using Vim as a Java IDE? [closed]
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Some tips:
Make sure you use vim (vi improved). Linux and some versions of UNIX symlink vi to vim.
You can get code completion with eclim
Or you can get vi functionality within Eclipse with viPlugin
Syntax highlighting is great with vim
V...