Top network posts

• 103 Add regression line equation and R^2 on graph
• 45 Combine two data frames by rows (rbind) when they have different sets of columns
• 41 Further customize color of hyperref links
• 28 How to add leading zeros?
• 25 draw cell borders using heatmap.2
• 23 Smoothing out ggplot2 map
• 22 Is data really copied four times in R's replacement functions?
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