Description Usage Arguments Details Value Examples
Tableplots from a large dataset can be generated very fast when the preprocessing stage is done only once. This function preprocesses the dataset, and returns an object that can be passed to tableplot
. From this stage, tableplots are generated very fast, no matter on which column the data is sorted or how many row bins are chosen.
1 |
x |
|
name |
name of the dataset |
dir |
directory to store the prepared object. If unspecified, the prepared object will not be saved, and the underlying data will be stored temporarily in |
... |
arguments passed to other methods (at the moment only |
The function bin_data
needs a prepared data.frame
Prepare transforms the supplied data into an ffdf
object and calculates
the order of each of its columns. Knowing the order of the columns speeds up
the binning process consideratly, For large ffdf
objects this may be a time consuming
step so it can be wise to call prepare before making a tableplot.
a prepared object, including the data and order of each of the columns
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