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How to convert index of a pandas dataframe into a column?
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either:
df['index1'] = df.index
or, .reset_index:
df.reset_index(level=0, inplace=True)
so, if you have a multi-index frame with 3 levels of index, like:
>>> df
val
tick tag obs
2016-02-26 C 2 0.0139
2016-02...
Disabled href tag
Although that link is disabled, it's still clickable.
31 Answers
31
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Reference list item by index within Django template?
...n definitely add another filter to return the objects inside a django Queryset.
@register.filter
def get_item(Queryset):
return Queryset.your_item_key
In that case, you would type something like this {{ Queryset|index:x|get_item }} into your template to access some dictionary object. It work...
How to log PostgreSQL queries?
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In your data/postgresql.conf file, change the log_statement setting to 'all'.
Edit
Looking at your new information, I'd say there may be a few other settings to verify:
make sure you have turned on the log_destination variable
make sure you turn on the logging_collector
also mak...
Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
...com --delete
java-cert-importer.sh
#!/usr/bin/env bash
# Exit on error
set -e
# Ensure script is running as root
if [ "$EUID" -ne 0 ]
then echo "WARN: Please run as root (sudo)"
exit 1
fi
# Check required commands
command -v openssl >/dev/null 2>&1 || { echo "Required command 'op...
jQuery Set Cursor Position in Text Area
How do you set the cursor position in a text field using jQuery? I've got a text field with content, and I want the users cursor to be positioned at a certain offset when they focus on the field. The code should look kind of like this:
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Suppressing “is never used” and “is never assigned to” warnings in C#
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Nice, this does hide the warning… but setting such a struct as public is more likely to be a mistake than the warning we’re trying to mask. (You probably shouldn’t be unnecessarily exposing types used for internal implementation and types with public fields p...
#include in .h or .c / .cpp?
...iles being included multiple times, but if they have proper include guards set up to protect against multiple declaration/definition errors, then a few extra seconds of build time isn't worth worrying about. Trying to manage dependencies manually is a pain in the ass.
Of course, you shouldn't be...
How to calculate the difference between two dates using PHP?
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33 Answers
33
Active
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Rails: Using build with a has_one association in rails
...ng you that you do not have required column user_id in the profile table.
Setting the relationships in the model is only part of the answer.
You also need to create a migration that adds the user_id column to the profile table.
Rails expects this to be there and if it is not you cannot access the...