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what is the difference between 'transform' and 'fit_transform' in sklearn
... into training data and test data:
import numpy as np
from sklearn.model_selection import train_test_split
X_train, X_test, y_train, y_test = train_test_split(X, y)
X_train_vectorized = model.fit_transform(X_train)
X_test_vectorized = model.transform(X_test)
Imagine we are fitting a tokenizer,...
How to stop Visual Studio from “always” checking out solution files?
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From memory, if you use the Tools, Options menu and select the Source Control, Environments panel there should be a few options for configuring the way the IDE interfaces with the version control.
I think some of these options control the checkout on open behaviour.
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ERROR 2006 (HY000): MySQL server has gone away
...L/MariaDB server.
Double check the value was set properly by:
mysql -sve "SELECT @@max_allowed_packet" # or:
mysql -sve "SHOW VARIABLES LIKE 'max_allowed_packet'"
You got a timeout from the TCP/IP connection on the client side.
Solution: Increase wait_timeout variable.
You tried to run a query a...
Connect Device to Mac localhost Server? [closed]
...Internet Sharing to turn it on, it will prompt you to confirm your action, select ok.
If your iPhone is connected using USB, the iPhone USB is checked at the "sharing your connection" list on the right side.
After this, try accessing your local server using your macs ip on wifi.
...
Eclipse “Error: Could not find or load main class”
...to your desktop eclipse installation? If that is the case, you should just select Project > Clean. Then rebuild your project. Worked like a charm for me.
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Is it possible to send an array with the Postman Chrome extension?
...ote:
If you are using the postman packaged app, you can send an array by selecting raw / json (instead of form-data). Also, make sure to set Content-Type as application/json in Headers tab.
Here is example for raw data {"user_ids": ["123" "233"]}, don't forget the quotes!
If you are using the p...
How to set iPhone UIView z index?
...o the bottom of the list in the Documents Outline.
Alternatively, you can select the view and then in the menu go to Editor > Arrange > Send to Front.
In Swift
There are a couple of different ways to do this programmatically.
Method 1
yellowView.bringSubviewToFront(greenView)
This method is...
XAMPP - MySQL shutdown unexpectedly
...Windows has built-in folder versioning — right click on /mysql/data/ and select Restore previous versions. You can then delete the current contents of the folder and replace it with the older version's contents.
Addendum: To ensure that you don't forget to run XAMPP as an administrator you can ri...
How to show a GUI message box from a bash script in linux?
...ll with zenity --help. One example is the --calendar option that let's you select a date from a graphical calendar.
my_date=$(zenity --calendar)
Which gives a nicely formatted date based on what the user clicked on:
echo ${my_date}
gives:
08/05/2009
There are also options for slider sele...
Bash command to sum a column of numbers [duplicate]
... With bc -l you can even add up float numbers. With cut you can select columns from the input: cat input.txt | cut -d ' ' -f 8 | paste -sd+ | bc -l will add all float numbers in column 8 of the input (space being the field separator).
– Arne
Sep 24 '...