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Strings in a DataFrame, but dtype is object

... Why do i need to convert every column i pass into scipy or sklearn astype(str) for it to accept it? seems I should be able to apply that to all columns initially. – Tinkinc Aug 21 '19 at 12:53 ...
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Write bytes to file

... The simplest way would be to convert your hexadecimal string to a byte array and use the File.WriteAllBytes method. Using the StringToByteArray() method from this question, you'd do something like this: string hexString = "0CFE9E69271557822FE715A8B3E56...
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?

... One last thing to note, you may use the sys.intern function to ensure that you're getting a reference to the same string: >>> from sys import intern >>> a = intern('a') >>> a2 = intern('a') >>> a is a2 True As pointed out abov...
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How can I map True/False to 1/0 in a Pandas DataFrame?

... A succinct way to convert a single column of boolean values to a column of integers 1 or 0: df["somecolumn"] = df["somecolumn"].astype(int) share | ...
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Why does Python use 'magic methods'?

...those operations that were generic for a group of types and which were intended to work even for objects that didn’t have methods at all (e.g. tuples). It is also convenient to have a function that can readily be applied to an amorphous collection of objects when you use the functi...
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How to convert a string or integer to binary in Ruby?

...ger#to_s(base) and String#to_i(base) available to you. Integer#to_s(base) converts a decimal number to a string representing the number in the base specified: 9.to_s(2) #=> "1001" while the reverse is obtained with String#to_i(base): "1001".to_i(2) #=> 9 ...
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Convert ArrayList to String[] array [duplicate]

... If you mean, it worn convert a List<Integer> to an int[] ... that is correct. It converts it to an Integer[]. – Stephen C May 14 '15 at 9:17 ...
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Using comparison operators in Scala's pattern matching system

...and a boolean expression after the pattern: a match { case 10 => println("ten") case x if x > 10 => println("greater than ten") case _ => println("less than ten") } Edit: Note that this is more than superficially different to putting an if after the =>, because a patter...
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How to pass a URI to an intent?

...string intent.putExtra("imageUri", imageUri.toString()); and then just convert the string back to uri like this Uri myUri = Uri.parse(extras.getString("imageUri")); share | improve this answer...
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Load dimension value from res/values/dimension.xml from source code

...ics associated with the resources." when all they want to say is that they convert to pixels. – Trilarion Dec 12 '15 at 22:31 ...