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Change one value based on another value in pandas
... solution (it is explicitly discouraged in the docs), but it is useful to know about:
import pandas
df = pandas.read_csv("test.csv")
df['FirstName'][df.ID == 103] = "Matt"
df['LastName'][df.ID == 103] = "Jones"
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Is file append atomic in UNIX?
...pretaion is correct then of course the different records may be mixed. But now that I'm rereading Bastien's quote, I think it must mean that nobody can interrupt "during the write" - otherwise the entire paragraph in the standard would be useless, providing literally no guarantees at all (not even t...
List comprehension: Returning two (or more) items for each item
... @khachik I think this would be faster but I will time both methods now, tuples are generated very fast in python though.
– jamylak
Aug 8 '12 at 16:41
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CSS :after not adding content to certain elements
... won't work in all the browser ... and there is no specification that says now we can .. if you have one please share it because it's not safe to consider pseudo element with input
– Temani Afif
Aug 18 '18 at 14:55
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F# development and unit testing?
...ange in the process of writing code. I have been using TDD for years in C# now, and really appreciate to have unit tests to know where I am at.
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Combined area of overlapping circles
...ntained in any other circles.
Identifying these 3 types of dots is easy. Now construct a graph data structure where the nodes are the blue dots and the red dots with white interior. For every circle, put an edge between the circle middle (blue dot) and each of its intersections (red dots with whit...
How to access outer class from an inner class?
... @mikerodent Because to your comment (on my answer), I have now edited my answer to remove the "community wiki" description. Like you, I don't have any knowledge about "community wiki" answers, so it is good you fixed your mistake.
– Edward
Feb 1...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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But now it is deprecated in api 27 -> to use the v4 version again. Then we have the problem again, with not way to use the none support lib Fragment
– Morten Holmgaard
Apr 5 '18 at 8:32
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How to set environment variable for everyone under my linux system?
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As well as /etc/profile which others have mentioned, some Linux systems now use a directory /etc/profile.d/; any .sh files in there will be sourced by /etc/profile. It's slightly neater to keep your custom environment stuff in these files than to just edit /etc/profile.
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How does BitLocker affect performance? [closed]
... SSD disk you can see a small performance degradation with tests. I don't know what about a typical work, especially with the Visual Studio.
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