When is it compulsory to use the filter to change the data type to nominal? I am doing classification right now, and the results differ by a huge margin if I changed it to nominal compared to as it is. Thank you in advance.
1
There are 1 answers
Related Questions in FILTER
- C++ using std::vector across boundaries
- Using QPointer and QObject::connect with C++11
- Using std::vector<> and std::shared_ptr<> should cause error
- invoking function for each variadic template arguments and passing the result as constructor arguments
- Different behavior of async with Visual Studio 2013(Windows8.1) and GCC 4.9(Ubuntu14.10)
- Whether to use T const& or T&&
- C++ IRC Bot Buffer Error
- Downcast from a container of Base* to Derived* without explicit conversion
- Assigning values in a vector in non-sequential order
- Can I use C++11 list-initializer syntax for vectors with variables?
Related Questions in WEKA
- C++ using std::vector across boundaries
- Using QPointer and QObject::connect with C++11
- Using std::vector<> and std::shared_ptr<> should cause error
- invoking function for each variadic template arguments and passing the result as constructor arguments
- Different behavior of async with Visual Studio 2013(Windows8.1) and GCC 4.9(Ubuntu14.10)
- Whether to use T const& or T&&
- C++ IRC Bot Buffer Error
- Downcast from a container of Base* to Derived* without explicit conversion
- Assigning values in a vector in non-sequential order
- Can I use C++11 list-initializer syntax for vectors with variables?
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
I don't your question is formed well but I will try to answer it anyway.
Nominal and numeric attributes represent different types of attributes and therefore are treated differently by machine learning algorithms.
Nominal attributes are limited to a closed set of values and they don't have order or any other relation between them. Usually nominal attributes should have a small amount of possible values (large set of possible values may cause over-fitting). The color of car is an example of an attribute that probably would be represented as a nominal attribute.
Numeric attributes are usually more common. They represent values on some axis and are not limited to specific values. Usually the classification algorithms will try to find a point on that axis that differentiate well between the classes or use the value to calculate distance between instances. The salary of an employee is an example of an attribute I will probably use as a numeric attribute.
One more thing you need to take into account is how the classification algorithm treats nominal and numeric attributes. Some algorithms don't handle well nominal attributes. Other algorithms will not work well with several numeric attributes if the values of the attributes are not normalized.