You don’t need to enter anything under “Find what:” since empty cells are just blank. (The missing values are stilll there, will deal with it in the next step!)ĥ. Then, import CSV file into Excel (Don’t click CSV file directly, please import)ģ. Go to the top panel of Excel and look for “Data’ Panel. The reason that I save it into CSV is because it will treat all the blank space (including the whitespace) as missing data which makes us easier to deal with it later.Ģ. The reason we need to replace empty data with the question mark symbol in Excel is that Weka uses the character “?” to identify missing values. Sometimes, some blank cells are filled with spaces and (They look empty but filled with whitespaces).
You have to replace blank cells (also known as missing data) into the character “?” in Microsoft Excel. If you try to import it into Weka, you will GET ERRORS.Īre you ready to start dealing with the missing values?! Sometimes, your excel file contains missing values for example: We learned that we can import them and install the “WekaExcel” package in Lecture 26. I am happy to help.We usually get dataset in. *** How to verify, check & apply for birth certificate online without any cost:įeel free to leave your questions and comments below this video. *** How to get NID from voter ID slip, check & verification NID online: *** How to create a FREE Apple ID or iTunes account (without credit card):
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