1 Objective |
1 Objective Questions |
2 --------- |
2 ------------------- |
3 |
3 |
4 .. A mininum of 8 questions here. |
4 .. A mininum of 8 questions here. |
5 |
5 |
6 1. Question 1 |
6 1. ``loadtxt`` can read data only from a file with one column |
7 2. Question 2 |
7 only. True or False? |
8 3. Question 3 |
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9 |
8 |
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9 Answer: False |
10 |
10 |
11 Programming |
11 #. To read a file with multiple columns, into separate simple |
12 ----------- |
12 sequences, ``loadtxt`` is given the additional argument ______? |
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13 |
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14 Answer: ``unpack=True`` |
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15 |
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16 #. We have a file with two columns of data separated by one of the |
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17 following characters. Which of them doesn't require the delimiter |
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18 argument to be specified, when using ``loadtxt``. |
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19 |
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20 a. ; |
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21 #. , |
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22 #. : |
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23 #. [space] |
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24 |
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25 Answer: [space] |
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26 |
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27 #. Given a file ``data.txt`` with three columns of data separated by |
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28 spaces, read it into one complex sequence. |
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29 |
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30 Answer: ``x = loadtxt("data.txt")`` |
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31 |
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32 #. Given a file ``data.txt`` with three columns of data separated by |
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33 spaces, read it into 3 separate simple sequences. |
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34 |
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35 Answer: ``x = loadtxt("data.txt", unpack=True)`` |
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36 |
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37 #. Given a file ``data.txt`` with three columns of data separated by |
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38 ``:``, read it into one complex sequence. |
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39 |
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40 Answer: ``x = loadtxt("data.txt", delimiter=":")`` |
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41 |
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42 #. Given a file ``data.txt`` with three columns of data separated by |
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43 ":", read it into 3 separate simple sequences. |
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44 |
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45 Answer: ``x = loadtxt("data.txt", unpack=True, delimiter=":")`` |
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46 |
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47 #. To use the loadtxt command, each row should have the same number of |
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48 values, T or F ? |
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49 |
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50 Answer: True |
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51 |
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52 Larger Questions |
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53 ---------------- |
13 |
54 |
14 .. A minimum of 2 questions here. |
55 .. A minimum of 2 questions here. |
15 |
56 |
16 1. Programming Assignment 1 |
57 1. What will happen if one of the cells is empty? |
17 2. Programming Assignment 2 |
58 |
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59 #. Read a column with text? |
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60 |
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61 #. Given a file with 3 columns of data but two different delimiters, |
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62 what do you think will happen? |
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63 |