I’m working with a Boolean index in Pandas. The question is why the statement: a[(a['some_column']==some_number) & (a['some_other_column']==some_other_number)] works fine whereas a[(a['some_column']==some_number) and (a['some_other_column']==some_other_number)] exits with error? Example: a =...
How can I query/filter in Django and ignore the cases of my query-string? I’ve got something like and like to ignore the case of my_parameter: MyClass.objects.filter(name=my_parameter) 1 Answer 1
I have a Pandas DataFrame with a ‘date’ column. Now I need to filter out all rows in the DataFrame that have dates outside of the next two months....
I have a pandas data frame with few columns. Now I know that certain rows are outliers based on a certain column value. For instance column ‘Vol’ has all...
ECMAScript 5 has the filter() prototype for Array types, but not Object types, if I understand correctly. How would I implement a filter() for Objects in JavaScript? Let’s say...
I have an array of _ids and I want to get all docs accordingly, what’s the best way to do it ? Something like … // doesn't work ......
In the Music app of the new iOS, we can see an album cover behind a view that blurs it. How can something like that be accomplished? I’ve read...
The callback function in array_filter() only passes in the array’s values, not the keys. If I have: $my_array = array("foo" => 1, "hello" => "world"); $allowed = array("foo", "bar");...
I want to filter my dataframe with an or condition to keep rows with a particular column’s values that are outside the range [-0.25, 0.25]. I tried: df =...
I am working with Javascript(ES6) /FaceBook react and trying to get the first 3 elements of an array that varies in size. I would like do the equivalent of...