add R colorway example

Author: michaelbabyn

_posts/r/style/2018-10-03-colorway.Rmd

@@ -0,0 +1,73 @@
+---
+title: Colorway in R | Examples | Plotly
+name: Colorway
+permalink: r/colorway/
+description: How to set default trace colors using colorway in R with Plotly.
+layout: base
+language: r
+page_type: example_index
+has_thumbnail: true
+display_as: style_opt
+order: 5
+output:
+  html_document:
+    keep_md: true
+---
+
+```{r, echo = FALSE, message=FALSE}
+knitr::opts_chunk$set(message = FALSE, warning=FALSE)
+Sys.setenv("plotly_username"="RPlotBot")
+Sys.setenv("plotly_api_key"="q0lz6r5efr")
+```
+
+### New to Plotly?
+
+Plotly's R library is free and open source!<br>
+[Get started](https://plot.ly/r/getting-started/) by downloading the client and [reading the primer](https://plot.ly/r/getting-started/).<br>
+You can set up Plotly to work in [online](https://plot.ly/r/getting-started/#hosting-graphs-in-your-online-plotly-account) or [offline](https://plot.ly/r/offline/) mode.<br>
+We also have a quick-reference [cheatsheet](https://images.plot.ly/plotly-documentation/images/r_cheat_sheet.pdf) (new!) to help you get started!
+
+### Version Check
+
+Version 4 of Plotly's R package is now [available](https://plot.ly/r/getting-started/#installation)!<br>
+Check out [this post](http://moderndata.plot.ly/upgrading-to-plotly-4-0-and-above/) for more information on breaking changes and new features available in this version.
+
+```{r}
+library(plotly)
+packageVersion('plotly')
+```
+
+### Set Default Trace Colors with colorway
+
+```{r, results = 'hide'}
+library(plotly)
+
+x = seq(-1, 3, length=50)
+ones = rep(1, 50)
+a_list = seq(1, 3, length=7)
+b_list = seq(2, 14, length=7)
+df = data.frame(cbind(x, (outer((x*x), a_list) + outer(ones, b_list))))
+
+p <- plot_ly(df, x = ~x, y = ~V2, type = 'scatter', mode = 'lines') %>%
+  add_trace(y = ~V3) %>%
+  add_trace(y = ~V4) %>%
+  add_trace(y = ~V5) %>%
+  add_trace(y = ~V6) %>%
+  add_trace(y = ~V7) %>%
+  add_trace(y = ~V8) %>%
+  layout(colorway = c('#f3cec9', '#e7a4b6', '#cd7eaf', '#a262a9', '#6f4d96', '#3d3b72', '#182844'))
+
+
+# Create a shareable link to your chart
+# Set up API credentials: https://plot.ly/r/getting-started
+chart_link = api_create(p, filename="colorway-example")
+chart_link
+```
+
+```{r, echo=FALSE}
+chart_link
+```
+
+#Reference
+
+See [https://plot.ly/r/reference](https://plot.ly/r/reference) for more information and chart attribute options!

_posts/r/style/2018-10-03-colorway.md

@@ -0,0 +1,73 @@
+---
+title: Colorway in R | Examples | Plotly
+name: Colorway
+permalink: r/colorway/
+description: How to set default trace colors using colorway in R with Plotly.
+layout: base
+language: r
+page_type: example_index
+has_thumbnail: true
+display_as: style_opt
+order: 5
+output:
+  html_document:
+    keep_md: true
+---
+
+
+
+### New to Plotly?
+
+Plotly's R library is free and open source!<br>
+[Get started](https://plot.ly/r/getting-started/) by downloading the client and [reading the primer](https://plot.ly/r/getting-started/).<br>
+You can set up Plotly to work in [online](https://plot.ly/r/getting-started/#hosting-graphs-in-your-online-plotly-account) or [offline](https://plot.ly/r/offline/) mode.<br>
+We also have a quick-reference [cheatsheet](https://images.plot.ly/plotly-documentation/images/r_cheat_sheet.pdf) (new!) to help you get started!
+
+### Version Check
+
+Version 4 of Plotly's R package is now [available](https://plot.ly/r/getting-started/#installation)!<br>
+Check out [this post](http://moderndata.plot.ly/upgrading-to-plotly-4-0-and-above/) for more information on breaking changes and new features available in this version.
+
+
+```r
+library(plotly)
+packageVersion('plotly')
+```
+
+```
+## [1] '4.8.0'
+```
+
+### Set Default Trace Colors with colorway
+
+
+```r
+library(plotly)
+
+x = seq(-1, 3, length=50)
+ones = rep(1, 50)
+a_list = seq(1, 3, length=7)
+b_list = seq(2, 14, length=7)
+df = data.frame(cbind(x, (outer((x*x), a_list) + outer(ones, b_list))))
+
+p <- plot_ly(df, x = ~x, y = ~V2, type = 'scatter', mode = 'lines') %>%
+  add_trace(y = ~V3) %>%
+  add_trace(y = ~V4) %>%
+  add_trace(y = ~V5) %>%
+  add_trace(y = ~V6) %>%
+  add_trace(y = ~V7) %>%
+  add_trace(y = ~V8) %>%
+  layout(colorway = c('#f3cec9', '#e7a4b6', '#cd7eaf', '#a262a9', '#6f4d96', '#3d3b72', '#182844'))
+
+
+# Create a shareable link to your chart
+# Set up API credentials: https://plot.ly/r/getting-started
+chart_link = api_create(p, filename="colorway-example")
+chart_link
+```
+
+<iframe src="https://plot.ly/~RPlotBot/5487.embed" width="800" height="600" id="igraph" scrolling="no" seamless="seamless" frameBorder="0"> </iframe>
+
+#Reference
+
+See [https://plot.ly/r/reference](https://plot.ly/r/reference) for more information and chart attribute options!