Displaying 2 results from an estimated 2 matches for "largedf".
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largedb
2008 Oct 30
3
why does sample(x, n) give the same n items in every separate runs?
...evels. What I want is to make a random set of genes that have the same levels as the small group from large group using sample().
I used smallvec to hold the number of genes in each levels (1 to 10) for small group, largevec for large group. I ordered the gene expression data frame of large group (largedf) by the levels and randomly chose the genes with same level as small group. Using the code below I can get the random set of genes from lagre group with same levels for small group. But I got the same set of genes when I run the code in every other runs in Linux. This gives me a doubt in my result....
2009 Sep 28
2
A programming question - is what I want to do possible in R?
I have a large data frame, 77 rows, with 10 columns. Each row represents a
unique individual with 10 characteristics, some of which are categorical
factors and some continuous numeric variables. Each of the ten variables is
important (the 10 columns obviously correspond to the individuals of
interest). Importantly, this data set represents a population (not sample)
of people with a certain medical