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Tuesday, June 17, 2025

Zhuo Yao, Ph.D.

Professional Website of Dr. Zhuo Yao
Zhuo Yao, Ph.D.
Professional Website of Dr. Zhuo Yao
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Category: R

R

Horizon on ggplot2

calsalmon July 15, 2014

SocialDataBlog’s kind reference in post Horizon plots with ggplot (not) motivated me to finish what the post started.  I knew that ggplot2 would be a little more…

View More Horizon on ggplot2
R

Horizon plots with ggplot (not)

calsalmon July 15, 2014

The Timely Portfolio blog via R-bloggers has recently published some interesting entries about the value of horizon plots for visual comparison of a number of time series. …

View More Horizon plots with ggplot (not)
R

ggplot2: Cheatsheet for Visualizing Distributions

calsalmon July 15, 2014

In the third and last of the ggplot series, this post will go over interesting ways to visualize the distribution of your data. I will…

View More ggplot2: Cheatsheet for Visualizing Distributions
R

Visualize Copulas

calsalmon July 15, 2014

In those Copula codes you can get a rough idea what copula is, how to estimate and simulate it, how to test its performance, etc., to help…

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R

Copula Functions, R, and the Financial Crisis

calsalmon July 15, 2014

From: In defense of the Gaussian copula, The Economist “The Gaussian copula provided a convenient way to describe a relationship that held under particular conditions. But…

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R

Bivariate Flood Frequency Analysis by R Copula Function

calsalmon July 15, 2014

http://r4hydrology.wordpress.com/    The joints distribution frequency analysis by copula family is presented with R code  (example#code). The  data used in this analysis were  flood peak,…

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R

Learn R : 12 Books and Online Resources

calsalmon June 20, 2014

R, an open-source statistical and data mining programming language, is slowly but surely catching up in its race with commercial software like SAS & SPSS.…

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R

For loops (and how to avoid them)

calsalmon June 20, 2014

My experience when starting out in R was trying to clean and recode data usingfor() loops, usually with a few if() statements in the loop as well, and finding…

View More For loops (and how to avoid them)
R

XLConnect : read, write and manipulate Microsoft Excel files from within R

calsalmon June 18, 2014

XLConnect is a package that allows for reading, writing and manipulating Microsoft Excel files from within R. It does not require any installation of Microsoft Excel…

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R

DATA FRAMES

calsalmon June 18, 2014

DATA FRAMES Preamble There is plenty to say about data frames because they are the primary data structure in R. Some of what follows is…

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