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Replace None with NaN in pandas dataframe
... which will replace the Python object None, not the string 'None'.
import pandas as pd
import numpy as np
For dataframe:
df = df.fillna(value=np.nan)
For column or series:
df.mycol.fillna(value=np.nan, inplace=True)
share...
SQL Server SELECT INTO @variable?
...uzzle! See mssqltips.com/sqlservertip/1888/…
– Smandoli
Feb 24 '16 at 18:01
10
To force the q...
How to convert ActiveRecord results into an array of hashes
...s.all
tasks_records = tasks_records.as_json
# You can now add new records and return the result as json by calling `to_json`
tasks_records << TaskStoreStatus.last.as_json
tasks_records << { :task_id => 10, :store_name => "Koramanagala", :store_region => "India" }
tasks_records...
Occurrences of substring in a string
...at this might or might not return the result expected. With substring "aa" and string to search "aaa" the number of occurences expected may be one (returned by this code), but may be two as well (in this case you'll need "lastIndex++" instead of "lastIndex += findStr.length()") depending on what you...
How to identify if the DLL is Debug or Release build (in .NET) [duplicate]
I'm sure this has been asked before, but google and SO search failed me.
2 Answers
2
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How to remove specific value from array using jQuery
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That is good news and yes the right modification was needed :)
– Sarfraz
Aug 29 '10 at 19:02
2
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get client time zone from browser [duplicate]
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Look at this repository pageloom it is helpful
download jstz.min.js and add a function to your html page
<script language="javascript">
function getTimezoneName() {
timezone = jstz.determine()
return timezone.name();
}
</script>
and call this function f...
Non-recursive depth first search algorithm
...ry of the two is quite cool.
Update: As pointed out, take_first() removes and returns the first element in the list.
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PatternSyntaxException: Illegal Repetition when using regex in Java
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The { and } are special in Java's regex dialect (and most other dialects for that matter): they are the opening and closing tokens for the repetition quantifier {n,m} where n and m are integers. Hence the error message: "Illegal re...
Can Vim highlight matching HTML tags like Notepad++?
Vim has support for matching pairs of curly brackets, parentheses, and square brackets. This is great for editing C-style languages like PHP and JavaScript. But what about matching HTML tags?
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