do you mean you want:
table(data$names)
I hope it helps.
Best,
Dimitris
Markus Mühlbacher wrote:
Hi community,
I want to count the occurrence of values within a dataframe.
data$names is a list of many names. With namelist <- unique(data$names) I get all the existing names. But the result is a factor, not a list of strings.
I would then like to go trough all the names in a for-loop and count their occurrence.
How do I make this?
Best regards,
Markus
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Dimitris Rizopoulos
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Department of Biostatistics
Erasmus University Medical Center
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