not able to see summarize()

pls look in to screenshot
not able to get result

No screenshot.

It is better to supply code copied and pasted between


Also it normally useful to have some sample data. A handy way to supply some sample data is the dput() function. In the case of a large dataset something like dput(head(mydata, 100)) should supply the data we need. Just do dput(mydata) where mydata is your data. Copy the output and paste it here between


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Thanks. ...!! understand.
I will do it....