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Replace None with NaN in pandas dataframe
... dtype fields in your df and then replace the None:
obj_columns = list(df.select_dtypes(include=['object']).columns.values)
df[obj_columns] = df[obj_columns].replace([None], np.nan)
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improv...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
...henticate. An user with USAGE privilege can run certain SQL commands like 'select 1+1' and 'show processlist'.
– Mircea Vutcovici
Feb 26 '15 at 16:10
add a comment
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Is there StartsWith or Contains in t sql with variables?
... Edition%'
Example:
DECLARE @edition varchar(50);
set @edition = cast((select SERVERPROPERTY ('edition')) as varchar)
DECLARE @isExpress bit
if @edition like 'Express Edition%'
set @isExpress = 1;
else
set @isExpress = 0;
print @isExpress
...
Track all remote git branches as local branches
...it branch --set-upstream-to $remote/$brname $brname;
done
it will only select upstream branches from the remote you specify in the remote variable (it can be 'origin' or whatever name you have set for one of the remotes of your current Git repo).
it will extract the name of the branch: origin/a/...
Nohup is not writing log to output file
... Works like a charm. I also think it is a better answer than the one selected as correct. Could you please mark this as correct to not confuse others?
– Ondrej Burkert
May 13 '15 at 14:50
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Regex: Specify “space or start of string” and “space or end of string”
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The easier way to exclude the group selection from the match is (?:^|\s)
– user2426679
Oct 22 '15 at 16:48
7
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Input size vs width
...bly preferable to the inline style attribute.
You still need size for <select multiple> to get the height to line up with the options properly. But I'd not use it on an <input>.
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How to find where gem files are installed
...an check it from your command prompt by running gem help commands and then selecting the proper command:
kirti@kirti-Aspire-5733Z:~$ gem help commands
GEM commands are:
build Build a gem from a gemspec
cert Manage RubyGems certificates and signing settin...
How to find out which fonts are referenced and which are embedded in a PDF document
...e fonts embedded.
Using the normal Adobe Reader (or Foxit if you prefer). Select File->Properties on the resulting Dialog choose the Font tab. You will see a list of fonts. The ones that are embedded will state this fact in ( ) behind the font name.
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Value Change Listener to JTextField
...cumentListener can, sometime, receive two events. For instance if the user selects the whole field content, then press a key, you'll receive a removeUpdate (all the content is remove) and an insertUpdate.
In your case, I don't think it is a problem but, generally speaking, it is.
Unfortunately, it s...