as the decimal separator and not a comma. The string doesn't contain spaces or non-digit characters.To solve the "ValueError: could not convert string to float" error, make sure: This time, we used the str.replace() method to remove the percent % signsįrom the string before converting to float. DataFrame ( )ĭf = ] # employee salary # 0 Alice 12.34 # 1 Bobby 23.45 # 2 Carl 34.56 print (df ) This Python write-up presented a complete guide on how to fix the “could not convert string to float” error.Df = pd. The try-except block is also beneficial to rectify or handle this error in Python script. The “float()” function is used along with the combination of both these functions to convert the string value into float. findall()” and “ str.repalce()” functions are used to remove symbols and characters from the given string. To fix the “ ValueError: could not convert string to float”, the “ str.repalce()”, “ re.findall()” and “ try-except” is used in Python. The above output verified that the string value had been converted into a float value. After replacing the unwanted symbols in the except block, the “ float()” function converts the string into float.The try-except block handles the “ValueError” along with the combination of the “str.repalce()” function.The string value containing symbols and digits is initialized. An example of this is shown in the below snippet: The “ValueError” can also be removed using the “ try/except” block in Python. Viewed 992 times 0 I converted my dataset features into integers using the following code. import pandas as pd from ee import DecisionTreeClassifier Import Decision Tree Classifier from sklearn.modelselection import traintestsplit Import traintestsplit function from sklearn import metrics Import scikit-learn metrics module for accuracy calculation colnames 'pregnant', 'glucose', 'bp', 'skin', 'insulin', 'bmi'. This method can not remove the characters placed in between the string. ValueError: could not convert string to float after converting features to integers for decision tree. Note: The “str.strip()” function removes the leading and trailing characters or symbols from the given string. In the above output, the string value has been converted into float successfully.
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