![]() ![]() If it does, you're past the end of the array - keys can't be null in arrays. practice of passing a Fortran array element where an array is expected. To see if you've blown past the end of the array, use key($array) and see if it returns NULL. Next: Creating R packages, Previous: Writing R Extensions, Up: Writing R. When you are implementing the Iterator interface, therefore, it's a real pain in the behind to use each(). You see, each() gets the value BEFORE advancing the pointer, and next() gets the value AFTER advancing the pointer. If the input features contain sequences, you need to convert them into individual values. What Causes Valueerror: Setting An Array Element With A Sequence Examples Causing Valueerror: Setting An Array Element With A Sequence. ![]() It took me a while to figure this out, but there is a more consistent way to figure out whether you really went past the end of the array, than using each(). How to Solve ValueError: setting an array element with a sequence To solve the ValueError: setting an array element with a sequence error, you need to ensure that the input features (X) are a 2D array of shape (nsamples, nfeatures). PS IMO it doesn't make much sense to save (well to try to save) 2D sparse matrix (result of vectorizer.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search ![]() X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.3, random_state=42) ![]() Workaround: X = vectorizer.fit_transform(df) But when I try to train SVC model I obtain the ValueError: setting an array element with a sequence. With 4 stored elements in Compressed Sparse Row format>īasically the same is happening when we do df = 0 - we will have a column of zeros I want to perform TFIDF vectorization on some text documents and after use the results to train different machine learning models. Pandas treats the result of vectorizer.fit_transform() as a scalar object.Īs a result you will have the same sparse matrix in every row in the vect_message column: In : df.loc When you execute the following line: df = vectorizer.fit_transform(df) ![]()
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