means and standard deviations # for each group In [155]: gp3 = df3.groupby(level=('letter', 'word')) In [156]: means = gp3.mean() In [157]: errors = gp3.std() In [158]: means Out[158]: data1 data2 letter

defined # Group by index labels and take the means and standard deviations # for each group In [155]: gp3 = df3.groupby(level=('letter', 'word')) --------------------------------------------------------------------------- in ----> 1 gp3 = df3.groupby(level=('letter', 'word')) NameError: name 'df3' is not defined In [156]: means = gp3.mean() (continues on next page) 2.11. Visualization last) in ----> 1 means = gp3.mean() NameError: name 'gp3' is not defined In [157]: errors = gp3.std() ---------------------------------------------------------------------------

defined # Group by index labels and take the means and standard deviations # for each group In [155]: gp3 = df3.groupby(level=('letter', 'word')) --------------------------------------------------------------------------- in ----> 1 gp3 = df3.groupby(level=('letter', 'word')) NameError: name 'df3' is not defined In [156]: means = gp3.mean() (continues on next page) 640 Chapter 2 last) in ----> 1 means = gp3.mean() NameError: name 'gp3' is not defined In [157]: errors = gp3.std() ---------------------------------------------------------------------------

defined # Group by index labels and take the means and standard deviations # for each group In [158]: gp3 = df3.groupby(level=('letter', 'word')) --------------------------------------------------------------------------- in ----> 1 gp3 = df3.groupby(level=('letter', 'word')) NameError: name 'df3' is not defined In [159]: means = gp3.mean() (continues on next page) 650 Chapter 2 last) in ----> 1 means = gp3.mean() NameError: name 'gp3' is not defined In [160]: errors = gp3.std() ---------------------------------------------------------------------------

defined # Group by index labels and take the means and standard deviations # for each group In [158]: gp3 = df3.groupby(level=('letter', 'word')) --------------------------------------------------------------------------- in ----> 1 gp3 = df3.groupby(level=('letter', 'word')) NameError: name 'df3' is not defined In [159]: means = gp3.mean() (continues on next page) 650 Chapter 2 last) in ----> 1 means = gp3.mean() NameError: name 'gp3' is not defined In [160]: errors = gp3.std() ---------------------------------------------------------------------------

defined # Group by index labels and take the means and standard deviations # for each group In [155]: gp3 = df3.groupby(level=('letter', 'word')) --------------------------------------------------------------------------- in ----> 1 gp3 = df3.groupby(level=('letter', 'word')) NameError: name 'df3' is not defined In [156]: means = gp3.mean() (continues on next page) 642 Chapter 3 last) in ----> 1 means = gp3.mean() NameError: name 'gp3' is not defined In [157]: errors = gp3.std() ---------------------------------------------------------------------------

defined # Group by index labels and take the means and standard deviations # for each group In [158]: gp3 = df3.groupby(level=("letter", "word")) --------------------------------------------------------------------------- NameError Traceback (most recent call last) in ----> 1 gp3 = df3.groupby(level=("letter", "word")) NameError: name 'df3' is not defined (continues on next powerful Python data analysis toolkit, Release 1.2.0 (continued from previous page) In [159]: means = gp3.mean() --------------------------------------------------------------------------- NameError Traceback

means and standard deviations for each group In [120]: gp3 = df3.groupby(level=(’letter’, ’word’)) In [121]: means = gp3.mean() In [122]: errors = gp3.std() 490 Chapter 17. Plotting pandas: powerful Python

means and standard deviations for each group In [145]: gp3 = df3.groupby(level=(’letter’, ’word’)) In [146]: means = gp3.mean() In [147]: errors = gp3.std() In [148]: means Out[148]: data1 data2 letter

means and standard deviations for each group In [145]: gp3 = df3.groupby(level=(’letter’, ’word’)) In [146]: means = gp3.mean() In [147]: errors = gp3.std() In [148]: means Out[148]: data1 data2 letter