The default b开发者_JS百科ehavior of melt.data.frame is to return the \"variable\" column in \"factor\" class. Here is an example:
I want to use R to summarize numerical data in a table with non-unique rownames to a result table with unique row-names with values summarized using a custom function. The summarization logic is: use
I am completely new to the NDK. I have done a couple of the tutorials including the hello from jni one
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