Modified scripts & slides in module 2.

1 files changed, 46 insertions, 33 deletions

diff --git a/loading_data_from_files/script.rst b/loading_data_from_files/script.rst
index fd05ed3..b0d3245 100644
--- a/loading_data_from_files/script.rst
+++ b/loading_data_from_files/script.rst
@@ -30,7 +30,7 @@ team along with the logo of MHRD }}}
 
 .. R1
 
-Hello Friends. Welcome to this tutorial on "loading data from files".
+Hello Friends and Welcome to this tutorial on "loading data from files".
 
 .. L2
 
@@ -41,7 +41,8 @@ Hello Friends. Welcome to this tutorial on "loading data from files".
 At the end of this tutorial, you will be able to,
 
  1. Read data from files, containing a single column of data 
- #. Read multiple columns of data, separated by spaces or other delimiters.
+ #. Read multiple columns of data, separated by spaces or other 
+    delimiters.
 
 .. L3
 
@@ -58,7 +59,8 @@ Let us switch to the terminal and start IPython, using ipython -pylab
 
 Now, Let us begin with reading the file primes.txt, which contains
 a list of prime numbers listed in a column, using the loadtxt command.
-Please make sure that you provide the correct path of the file 'primes.txt'.
+Please make sure that you provide the correct path of the file, 
+'primes.txt'.
 The file, in our case, is present in ``/home/fossee/primes.txt``. 
 
 .. L4
@@ -72,7 +74,8 @@ The file, in our case, is present in ``/home/fossee/primes.txt``.
 
 .. R5
 
-Otherwise we can use the ``cat`` command to locate the file and read the contents of it.
+Otherwise we can use the ``cat`` command to locate the file and read the 
+contents of it.
 
 .. R6
 
@@ -85,8 +88,8 @@ Now let us read this list into the variable ``primes``.
 
 .. R7
 
-``primes`` is now a sequence of prime numbers, that was listed in the file,
-``primes.txt``.
+``primes`` is now a sequence of prime numbers, that was listed in the
+file,``primes.txt``.
 
 We now type, ``print primes`` to see the sequence printed.
 
@@ -106,11 +109,11 @@ because these numbers are actually read as ``floats``.
 
 .. R9
 
-Now, let us use the ``loadtxt`` command to read a file ``pendulum.txt`` that contains
-two columns of data. This file contains the length
+Now, let us use the ``loadtxt`` command to read a file ``pendulum.txt`` 
+that contains two columns of data. This file contains the length
 of the pendulum in the first column and the corresponding time period
-in the second. Note that here ``loadtxt`` needs both the columns to have
-equal number of rows. 
+in the second. Note that here ``loadtxt`` needs both the columns to 
+have equal number of rows. 
 
 We use the ``cat`` command to view the contents of this file.
 
@@ -170,6 +173,10 @@ separate sequences instead of one complex sequence.
 
 .. L14
 
+.. L15
+
+{{{ Show slide with exercise 1 }}}
+
 .. R15
 
 Till now, we have learnt the basic use of the ``loadtxt``
@@ -181,35 +188,39 @@ Read the file ``pendulum_semicolon.txt`` which contains the same
 data as ``pendulum.txt``, but the columns are separated by semi-colons
 instead of spaces. Use the IPython help to see how to do this. 
 
-.. L15
+.. L16
 
 {{{ switch back to the terminal }}}
 ::
 
-  L, T = loadtxt('/home/fossee/pendulum_semicolon.txt', unpack=True, delimiter=';')
+    L, T = loadtxt('/home/fossee/pendulum_semicolon.txt', unpack=True, 
+                   delimiter=';')
+
+    print L
 
-  print L
+    print T
 
-  print T
+.. R16
 
-.. L16
+.. L17
 
 {{{ show the summary slide }}}
 
-.. R16
+.. R17
 
-This brings us to the end of this tutorial. 
-let's revise quickly what we have learnt today.In this tutorial we learnt,
+This brings us to the end of this tutorial.In this tutorial,
+we have learnt to,
 
- 1. To Read data from files, containing a single column of data using the
-    ``loadtxt`` command.
- #. To Read multiple columns of data, separated by spaces or other delimiters.
+ 1. To Read data from files, containing a single column of data 
+    using the ``loadtxt`` command.
+ #. To Read multiple columns of data, separated by spaces or other 
+    delimiters.
 
-.. L17
+.. L18
 
 {{Show self assessment questions slide}}
 
-.. R17
+.. R18
 
 1. ``loadtxt`` can read data from a file with one column
    only. True or False?
@@ -221,35 +232,37 @@ let's revise quickly what we have learnt today.In this tutorial we learnt,
    ":", read it into 3 separate simple sequences. 
   
 
-.. L18
+.. L19
 
 {{{solution of self assessment questions on slide}}}
 
-.. R18
+.. R19
 
 And the answers,
 
-1. False. ``loadtxt`` command can read data from files having both single columns as well as 
-   multiple columns.
+1. False. ``loadtxt`` command can read data from files having both single 
+   columns as well as multiple columns.
 
-2. A file with three columns of data seperated by spaces to be read into 3 seperate sequences,
+2. A file with three columns of data seperated by spaces to be read into 
+   3 seperate sequences,
    we use the loadtxt command as,
 ::
 
      x = loadtxt("data.txt", unpack=True)
 
-3. If a file with three columns of data seperated by delimiters,we read it into three seperate sequences
-   by using an additional argument of delimiter in the loadtxt command
+3. If a file with three columns of data seperated by delimiters,we read 
+   it into three seperate sequences by using an additional argument of 
+   delimiter in the loadtxt command
 ::
 
     x = loadtxt("data.txt", unpack=True, delimiter=":")
 
-.. L19
+.. L20
 
 {{{ Show the Thankyou slide }}}
 
-.. R19
+.. R20
 
-Hope you have enjoyed and found it useful.
+Hope you have enjoyed this tutorial and found it useful.
 Thank you!