This is a quick document aimed at highlighting the basics of what you might want to do using MongoDB
and R
. I am coming at this, almost completely, from a SQL
mindset.
The easiest way to install, I believe, is
# Simplest possible marimekko/mosaic plot | |
doInstall <- TRUE # Change to FALSE if you don't want packages installed. | |
toInstall <- c("vcd", "ggplot2", "RColorBrewer") | |
if(doInstall){install.packages(toInstall, repos = "http://cran.us.r-project.org")} | |
lapply(toInstall, library, character.only = TRUE) | |
theme_set(theme_gray(base_size = 7)) | |
# All you need to start with is individual count data, and a grouping variable |
import android.support.v7.widget.LinearLayoutManager; | |
import android.support.v7.widget.RecyclerView; | |
public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener { | |
public static String TAG = EndlessRecyclerOnScrollListener.class.getSimpleName(); | |
private int previousTotal = 0; // The total number of items in the dataset after the last load | |
private boolean loading = true; // True if we are still waiting for the last set of data to load. | |
private int visibleThreshold = 5; // The minimum amount of items to have below your current scroll position before loading more. | |
int firstVisibleItem, visibleItemCount, totalItemCount; |