what time frame is 9.437 what is the frame for NAN what is na na na na na when a matrix of sample data is generated what is the length of data how does the na na data table work what is na na how do i find the time in a data frame what is the data frame in na na what is the data frame for na what is na how to create a data frame from a matrix how to assemble the data matrix what is the data matrix for na how do i find na na? how do you get a data frame how do I get a data frame like this what data type is na how do you get a data frame