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Remove unwanted parts from strings in a column
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A very simple method would be to use the extract method to select all the digits. Simply supply it the regular expression '\d+' which extracts any number of digits.
df['result'] = df.result.str.extract(r'(\d+)', expand=True).astype(int)
df
time result
1 09:00 52
2 10:00...
How to generate UML diagrams (especially sequence diagrams) from Java code?
...yrus
Go to Help -> Install New Software...
In the Work with: drop-down, select --All Available Sites--
In the filter, type in Papyrus
After installation finishes restart Eclipse
Repeat steps 1-3 and this time, install Modisco
Steps
In your java project (assume it's called MyProject) create a ...
How do I convert a dictionary to a JSON String in C#?
...Json(Dictionary<int, List<int>> dict)
{
var entries = dict.Select(d =>
string.Format("\"{0}\": [{1}]", d.Key, string.Join(",", d.Value)));
return "{" + string.Join(",", entries) + "}";
}
But, if you are serializing several different classes, or more complex data stru...
Do you debug C++ code in Vim? How? [closed]
...ey are able to jump around definitions in a C++ class aware manner without selecting and installing several different plugins themselves, and that includes while step debugging stuff. As of 2020 the least worst one for me was Eclipse: https://www.slant.co/topics/1411/~best-ides-for-c-on-linux
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How I can delete in VIM all text from current line to end of file?
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Just add another way , in normal mode , type ctrl+v then G, select the rest, then D, I don't think it is effective , you should do like @Ed Guiness, head -n 20 > filename in linux.
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How to recover a dropped stash in Git?
...t/ {print $3}'
...or using Powershell for Windows:
git fsck --no-reflog | select-string 'dangling commit' | foreach { $_.ToString().Split(" ")[2] }
This will show you all the commits at the tips of your commit graph which are no longer referenced from any branch or tag – every lost commit, inclu...
Environment variables for java installation
...ava\jdk1.7.0_79 (depending on your JDK installation path it varies).
Then select the Path system variable and click Edit.... Keep the variable name as Path, and append C:\Program Files\Java\jdk1.7.0_79\bin; or %JAVA_HOME%\bin; (both mean the same) to the variable value.
Once you are done with abov...
How to add custom method to Spring Data JPA
... public List<MyEntity> doSomeHql(Long id) {
String hql = "SELECT eFROM MyEntity e WHERE e.id = :id";
TypedQuery<MyEntity> query = entityManager.createQuery(hql, MyEntity.class);
query.setParameter("id", id);
return query.getResultList();
}
@Sup...
Python time measure function
....time() - start
return ret, elapsed
timed(lambda: database.foo.execute('select count(*) from source.apachelog'))
(<sqlalchemy.engine.result.ResultProxy object at 0x7fd6c20fc690>, 4.07547402381897)
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Cannot install packages using node package manager in Ubuntu
...Kirkby's comment and vbo's answer. I think that vbo's answer should be the selected answer.
– modulitos
Jun 20 '14 at 16:41
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