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How to sort a datafra<em>mem>e by <em>mem>ultiple colu<em>mem>n(s)
I want to sort a data.fra<em>mem>e by <em>mem>ultiple colu<em>mem>ns. For exa<em>mem>ple, with the data.fra<em>mem>e below I would like to sort by colu<em>mem>n z (descending) then by colu<em>mem>n b (ascending):
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Break when a value changes using the Visual Studio debugger
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In the Visual Studio 2005 <em>mem>enu:
Debug -&a<em>mem>p;gt; New Breakpoint -&a<em>mem>p;gt; New Data Breakpoint
Enter:
&a<em>mem>p;a<em>mem>p;<em>mem>yVariable
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How can I quantify difference between two i<em>mem>ages?
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General idea
Option 1: Load both i<em>mem>ages as arrays (scipy.<em>mem>isc.i<em>mem>read) and calculate an ele<em>mem>ent-wise (pixel-by-pixel) difference. Calculate the nor<em>mem> of the difference.
Option 2: Load both i<em>mem>ages. Calculate so<em>mem>e feature vector for each of the<em>mem> (like a histogra...
How can I stage and co<em>mem><em>mem>it all files, including newly added files, using a single co<em>mem><em>mem>and?
How can I stage and co<em>mem><em>mem>it all files, including newly added files, using a single co<em>mem><em>mem>and?
12 Answers
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Git error on co<em>mem><em>mem>it after <em>mem>erge - fatal: cannot do a partial co<em>mem><em>mem>it during a <em>mem>erge
...in a conflict. I resolved the conflict and everything is fine now (I used <em>mem>ergetool also).
17 Answers
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Convert a Python list with strings all to lowercase or uppercase
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It can be done with list co<em>mem>prehensions. These basically take the for<em>mem> of [function-of-ite<em>mem> for ite<em>mem> in so<em>mem>e-list]. For exa<em>mem>ple, to create a new list where all the ite<em>mem>s are lower-cased (or upper-cased in the second snippet), you would use:
&a<em>mem>p;gt;&a<em>mem>p;gt;&a<em>mem>p;g...
Getting an “a<em>mem>biguous redirect” error
The following line in <em>mem>y Bash script
11 Answers
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Re<em>mem>ove all files except so<em>mem>e fro<em>mem> a directory
When using sudo r<em>mem> -r , how can I delete all files, with the exception of the following:
19 Answers
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JavaScript seconds to ti<em>mem>e string with for<em>mem>at hh:<em>mem><em>mem>:ss
I want to convert a duration of ti<em>mem>e, i.e., nu<em>mem>ber of seconds to colon-separated ti<em>mem>e string (hh:<em>mem><em>mem>:ss)
43 Answers
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Delete files older than 10 days using shell script in Unix [duplicate]
I'<em>mem> new to shell scripts, can anyone help? I want to delete scripts in a folder fro<em>mem> the current date back to 10 days.
The scripts looks like:
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