First, to convert a Categorical column to its numerical codes, you can do this easier with: dataframe[‘c’].cat.codes.Further, it is possible to select automatically all columns with a certain dtype in a dataframe using select_dtypes. This way, you can apply above operation on multiple and automatically selected columns. First making an example dataframe: Then by using select_dtypes to select the … Read more
If you want to know how many values match in both the dictionaries, you should have said that 🙂 Maybe something like this:
As time = 3 is declared as an integer, time.time doesn’t have any sense since time is int variable (that isn’t a class but a primitive data type). I suppose that you expected to call time (module) writing time but, since you’re redefining it as an integer, this last definition shadows the time module Change time variable name to something else, like myTime Error messages are usefull, you should read … Read more
This is how I did it and it works: It gives you a list of n empty dictionaries.
Try list(newdict.keys()). This will convert the dict_keys object to a list. On the other hand, you should ask yourself whether or not it matters. The Pythonic way to code is to assume duck typing (if it looks like a duck and it quacks like a duck, it’s a duck). The dict_keys object will act like a list for most purposes. … Read more
print in Python 3 is no longer a statement, but a function. You need to call it using parentheses:
This is because str.index(ch) will return the index where ch occurs the first time. Try: This will return a list of all indexes you need. P.S. Hugh’s answer shows a generator function (it makes a difference if the list of indexes can get large). This function can also be adjusted by changing [] to ().
do you have any idea how to make 200 evenly spaced out bins, and have your program store the data in the appropriate bins? You can, for example, use NumPy’s arange for a fixed bin size (or Python’s standard range object), and NumPy’s linspace for evenly spaced bins. Here are 2 simple examples from my matplotlib gallery Fixed bin size … Read more
According to MAINT: silence Cython warnings about changes dtype/ufunc size. – numpy/numpy: These warnings are visible whenever you import scipy (or another package) that was compiled against an older numpy than is installed. and the checks are inserted by Cython (hence are present in any module compiled with it). Long story short, these warnings should be benign … Read more
I am new to both python and numpy. I ran a code that I wrote and I am getting this message: ‘index 0 is out of bounds for axis 0 with size 0’ Without the context, I just want to figure out what this means.. It might be silly to ask this but what do … Read more