Community Data Science Workshops (Fall 2014)/Day 1 lecture: Difference between revisions

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 == Lecture outline ==
-# review Friday material
+=== Review Friday material ===
-#* math: using python as a calculator
+* math: using python as a calculator
-#**addition, subtraction, multiplication, division
+**addition, subtraction, multiplication, division
-#**division shows something different: 8/2 versus 1/2
+**division shows something different: 8/2 versus 1/2
-#* <tt>type()</tt>
+* <tt>type()</tt>
-#** there are different types of things in python (called objects)
+** there are different types of things in python (called objects)
-#** variables that "know about the decimal place" (int) and variables that don't (floats)
+** variables that "know about the decimal place" (int) and variables that don't (floats)
-#* variables
+* variables
-#** assignment of variaibles
+** assignment of variaibles
-#** e.g., math with variables: scale up a recipe, into an assignment
+** e.g., math with variables: scale up a recipe, into an assignment
-#** you can assign to a variable and it will replace the old value
+** you can assign to a variable and it will replace the old value
-#* strings
+* strings
-#** things within quotation marks
+** things within quotation marks
-#** adding strings with "concatination" (smushing things together)
+** adding strings with "concatination" (smushing things together)
-#** e.g., <code>print("Hello" + name)</code>
-#** concatenating strings and integers don't work (e.g., <code>print(1 + "mako")</code>)
+** e.g., <code>print("Hello" + name)</code>
+** concatenating strings and integers don't work (e.g., <code>print(1 + "mako")</code>)
-#** 1 is different than "1"; name is different than "name"
+** 1 is different than "1"; name is different than "name"
-#** single quotes versus double quotes (python doesn't care)
+** single quotes versus double quotes (python doesn't care)
-#** you can also multiply strings! (although it's not clear why you want to weird)
+** you can also multiply strings! (although it's not clear why you want to weird)
-#* booleans
+* booleans
-#** comparisons (e.g., <code>1 == 1</code> or <code>1 == 0</code>)
+** comparisons (e.g., <code>1 == 1</code> or <code>1 == 0</code>)
-#*** you can compare strings (case sensative!)
+*** you can compare strings (case sensative!)
-#*** also >, <, and !=
+*** also >, <, and !=
-#** type() shows that the output of True or False is <code>bool</code>
-#** e.g., <code>"i" in "team"</code>
+** type() shows that the output of True or False is <code>bool</code>
-#** e.g., "i" not in "team"</code>
+** e.g., <code>"i" in "team"</code>
+** e.g., "i" not in "team"</code>
-#* <tt>if</tt>/<tt>elif</tt>/<tt>else</tt>
+* <tt>if</tt>/<tt>elif</tt>/<tt>else</tt>
-#** if, something that evaluates to a boolean, and then colon
+** if, something that evaluates to a boolean, and then colon
-#** e.g., if "mako" in "makoshark"
+** e.g., if "mako" in "makoshark"
-#* functions
+* functions
-#** has a parentheses
+** has a parentheses
-#** we've already learnd examples of this: exit(), help(), type()
+** we've already learnd examples of this: exit(), help(), type()
+=== Lists ===
 # lists
 #* purpose