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--- r:extracting_variable_names_and_lables [2017/11/23 17:16] – hkimscil
+++ r:extracting_variable_names_and_lables [2017/11/23 17:42] (current) – hkimscil
@@ Line 1: / Line 1: @@
-{{:r:states.csv}}
+{{:r:states.rds}}
 <code>
-data <- read.csv("http://commres.net/wiki/_media/r/states.csv")
+z <- gzcon(url("http://commres.net/wiki/_media/r/states.rds"))
+data <- read.RDS(z)
 head(data, 8)
 > head(data,8)
@@ Line 22: / Line 23: @@
      87  897  429  468      81    7602 48.618 79.2    27.2
      83  892  428  464      61    5865 40.641 77.5    21.4
-data <- data[-1]
 </code>
 <code>
-data.info <- data.frame(attributes(data)[c("names", "var.labels")])
+> data.info <- data.frame(attributes(data)[c("names", "var.labels")])
-data.info
+> data.info
+     names                      var.labels
+    state                           State
+   region             Geographical region
+      pop                 1990 population
+     area         Land area, square miles
+  density          People per square mile
+    metro Metropolitan area population, %
+    waste    Per capita solid waste, tons
+   energy Per capita energy consumed, Btu
+    miles    Per capita miles/year, 1,000
+   toxic Per capita toxics released, lbs
+   green Per capita greenhouse gas, tons
+   house    House '91 environ. voting, %
+  senate   Senate '91 environ. voting, %
+    csat        Mean composite SAT score
+    vsat           Mean verbal SAT score
+    msat             Mean math SAT score
+percent       % HS graduates taking SAT
+expense Per pupil expenditures prim&sec
+  income Median household income, $1,000
+    high             % adults HS diploma
+college         % adults college degree
 </code>