--- a/loading-data-from-files/questions.rst Wed Nov 17 23:24:57 2010 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,67 +0,0 @@
-Objective Questions
--------------------
-
-.. A mininum of 8 questions here.
-
-1. ``loadtxt`` can read data only from a file with one column
- only. True or False?
-
- Answer: False
-
-#. To read a file with multiple columns, into separate simple
- sequences, ``loadtxt`` is given the additional argument ______?
-
- Answer: ``unpack=True``
-
-#. We have a file with two columns of data separated by one of the
- following characters. Which of them doesn't require the delimiter
- argument to be specified, when using ``loadtxt``.
-
- a. ;
- #. ,
- #. :
- #. [space]
-
- Answer: [space]
-
-#. Given a file ``data.txt`` with three columns of data separated by
- spaces, read it into one complex sequence.
-
- Answer: ``x = loadtxt("data.txt")``
-
-#. Given a file ``data.txt`` with three columns of data separated by
- spaces, read it into 3 separate simple sequences.
-
- Answer: ``x = loadtxt("data.txt", unpack=True)``
-
-#. Given a file ``data.txt`` with three columns of data separated by
- ``:``, read it into one complex sequence.
-
- Answer: ``x = loadtxt("data.txt", delimiter=":")``
-
-#. Given a file ``data.txt`` with three columns of data separated by
- ":", read it into 3 separate simple sequences.
-
- Answer: ``x = loadtxt("data.txt", unpack=True, delimiter=":")``
-
-#. To use the loadtxt command, each row should have the same number of
- values, T or F ?
-
- Answer: True
-
-Larger Questions
-----------------
-
-.. A minimum of 2 questions here.
-
-1. What will happen if one of the cells is empty?
-
-#. Given a file with 3 columns of data but two different delimiters,
- what do you think will happen?
-
-#. Read a column with text?
-
-#. An input file contains 5 columns of data. Use only the second and fourth
- columns of data and load into two different variables.
- [hint: read the documentation, use the argument ``usecols``]
-.. #[bhanu: solutions are not seen to have been included.]