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Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli
...ho "$f" | sed s/IMG/VACATION/)"; done
In this example, I am assuming that all your image files contain the string IMG and you want to replace IMG with VACATION.
The shell automatically evaluates *.jpg to all the matching files.
The second argument of mv (the new name of the file) is the output of t...
How are feature_importances in RandomForestClassifier determined?
...d in [1] (often cited, but unfortunately rarely read...). It is sometimes called "gini importance" or "mean decrease impurity" and is defined as the total decrease in node impurity (weighted by the probability of reaching that node (which is approximated by the proportion of samples reaching that no...
What is the naming convention in Python for variable and function names?
... C# background the naming convention for variables and method names are usually either camelCase or PascalCase:
13 Answers
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Seeking clarification on apparent contradictions regarding weakly typed languages
...xamples of programming languages that simply coerce/convert types automatically.
9 Answers
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How to split text without spaces into list of words?
...el the distribution of the output. A good first approximation is to assume all words are independently distributed. Then you only need to know the relative frequency of all words. It is reasonable to assume that they follow Zipf's law, that is the word with rank n in the list of words has probabilit...
How can I use a carriage return in a HTML tooltip?
...>link with tip</a>
Firefox won't display multi-line tooltips at all though - it will replace the newlines with nothing.
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How to change a nullable column to not nullable in a Rails migration?
...s:
# Make sure no null value exist
MyModel.where(date_column: nil).update_all(date_column: Time.now)
# Change the column to not allow null
change_column :my_models, :date_column, :datetime, null: false
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Avoid trailing zeroes in printf()
...ing your number is in the variable num, the following function will remove all but the first N decimals, then strip off the trailing zeros (and decimal point if they were all zeros).
char str[50];
sprintf (str,"%.20g",num); // Make the number.
morphNumericString (str, 3);
: :
void morphNumericS...
Set Locale programmatically
...ocale to the front of the list set.add(locale); LocaleList all = LocaleList.getDefault(); for (int i = 0; i < all.size(); i++) { // append other locales supported by the user set.add(all.get(i)); } Locale[] locales = set.toArray(new ...
Conceptually, how does replay work in a game?
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I think your initial thought was correct. To create a replay, you store all input received from the user (along with the frame number at which it was received) along with the initial seeds of any random number generators. To replay the game, you reset your PRNGs using the saved seeds and feed th...