R, Ggplot2, shiny summary

Preface:

Everyone should know that ggplot2 and shiny are all seven of the R language weapons, although their ability is very fluid force, but also out "Walk the lake" for many years, but in the domestic relevant knowledge sharing is relatively small. Many times encountered problems have to search the wall, so despite their qualifications is still shallow, but I would like to be able to make a summary of their own knowledge to share, I hope to be helpful to later people!
Because the recent work is busy, there is no concentration of time and energy, so changed the way to write blog: Reduce the length of the blog, and then use the index of the way to summarize, share about R, Ggplot2, shiny a variety of knowledge points.

1. ggplot2--Legend article: http://blog.csdn.net/bone_ace/article/details/47284805

• Legend Basics in Ggplot2
• How do I hide a legend?
• How do I hide the legend title?
• How do I change the legend order?
• How do I change the label text for a legend?
• How do I set the size and color of the legend title and label text?
• How to put a legend above a diagram

2. ggplot2--Theme: http://blog.csdn.net/bone_ace/article/details/47267505

• How do i insert a theme?
• Two themes from Ggplot2
• 10 themes for the Ggthemes package

3, the R language of various errors and solutions: http://blog.csdn.net/bone_ace/article/details/47324233

• Connection Database error: Negative length vectors is not allowed
• Connection Database error: First argument is not an open RODBC channel
• Connection Database error: Incorrect number of dimensions
• Rstudio Restart on run: R Session aborted
• Error:argument is not interpretable as logical
• Rstudio cannot debug, the next breakpoint is invalid!
• Encoding error: Invalid multibyte character in Parcer on line 10

(Update in ... ）

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R, Ggplot2, shiny summary