Update docs/source/r.rst

docs/source/r.rst

@@ -151,7 +151,7 @@ Give your R code a Name and Description.
 Example
 --------------
 
-The three main components are the plotly, ggplot2, and htmlwidgets function
+The three main components are the plotly, ggplot2, and htmlwidgets function.
 
 .. code-block:: R
    
@@ -165,51 +165,52 @@ The three main components are the plotly, ggplot2, and htmlwidgets function
    #saveWidget
    htmlwidgets::saveWidget(as_widget(p), file="index.html")
 
-An example of a Plotly app is included in the installation.
+
+An example of a Plotly app is included in the installation.  Here, we add the RPostgreSQL library to connect to PostgreSQL.
 
 
 .. code-block:: R
 
    library(plotly)
    library(ggplot2)
+   library(RPostgreSQL)
    library(htmlwidgets)
 
-   set.seed(100)
+   conn <- RPostgreSQL::dbConnect("PostgreSQL", host = "localhost", dbname = "r_examples", user = "admin1", password = "4eA7hDlgYF")
-   d <- diamonds[sample(nrow(diamonds), 1000), ]
+
-   p <- plot_ly(d, x=~carat, y=~price, text=~paste("Clarity: ", clarity), mode="markers", color=~carat, size=~carat)
+   query_res <- dbGetQuery(conn, 'SELECT * FROM "sensor_readings";');
+   sensor_readings <- as.data.frame(query_res);
+   # sensor_readings$timestamp <- as.Date(sensor_readings$timestamp)
+
+   p <- plot_ly(sensor_readings, x=~timestamp, y=~humidity, text=~paste("Sensor: ", sensor_name), mode="markers", color=~humidity, size=~humidity) %>%
+	   	layout(
+		   		plot_bgcolor='#e5ecf6',
+			   	xaxis = list(  matches='x',
+				   							 zerolinecolor = '#ffff',
+					   						 zerolinewidth = 2,
+						   					 gridcolor = 'ffff',
+							   				 range = list(	min(sensor_readings$timestamp),
+								       		 max(sensor_readings$timestamp))
+																		),
+				yaxis = list(
+					zerolinecolor = '#ffff',
+					zerolinewidth = 2,
+					gridcolor = 'ffff')
+	   )
+	
    htmlwidgets::saveWidget(as_widget(p), file="index.html")
 
 
 There are three options for creating a Map.
 
 
-Option 1: FTP.
-------------
-
-FTP Uploads are qgis2web maps you have uploaded directly via FTP.
-
-It can also maps you uploaded via any FTP client.
-
-   .. image:: images/Map-2.png
 
 
-Option 2: Archive (Upload)
+ 
-------------
-
-Archive is a zipped archive file you can upload.
 
 
-   .. image:: images/Map-3.png
 
 
-Option 3: Paste
-------------
-
-Paste your R Leaflet code into the code box.
-
-
-   .. image:: images/Map-3.png
-
 
 
 Name