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Python: pandas DataFrame using Table display system

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This commit is contained in:
Alexander Bezzubov 2016-06-22 17:52:26 +09:00
parent bc91b86f94
commit 52e787d1a4
2 changed files with 54 additions and 30 deletions
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51
notebook/2BQA35CJZ/note.json
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File diff suppressed because one or more lines are too long

33
python/src/main/resources/bootstrap.py
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@ -69,7 +69,7 @@ plt.close()
print ('<div><br/> z.show function can take optional parameters ')
print ('to adapt graph width and height</div>')
print ("<div><b>example </b>:")
print('''<pre>z.show(plt,width='50px')
print ('''<pre>z.show(plt,width='50px')
z.show(plt,height='150px') </pre></div>''')
@ -93,13 +93,33 @@ class PyZeppelinContext(object):
print (self.errorMsg)
def show(self, p, **kwargs):
if instance(p, Matplotlib):
self.show_matplotlib(p, kwargs)
elif instance(p, PandaDataframe):
self.show_dataframe(p, kwargs)
if hasattr(p, '__name__') and p.__name__ == "matplotlib.pyplot":
self.show_matplotlib(p, **kwargs)
elif type(p).__name__ == "DataFrame": # does not play well with sub-classes
# `isinstance(p, DataFrame)` would req `import pandas.core.frame.DataFrame`
# and so a dependency on pandas
self.show_dataframe(p, **kwargs)
def show_dataframe(self, df, **kwargs):
print("%table col1\tcol2\tcol3\n")
"""Pretty prints DF as nice Table
"""
header_buf = io.StringIO("")
header_buf.write(df.columns[0])
for col in df.columns[1:]:
header_buf.write("\t")
header_buf.write(col)
body_buf = io.StringIO("")
rows = df.head().values
for row in rows: #TODO(bzz): limit N rows
body_buf.write(row[0])
for cell in row[1:]:
body_buf.write("\t")
body_buf.write(cell)
body_buf.write("\n")
body_buf.seek(0); header_buf.seek(0)
print("%table " + header_buf.read() + body_buf.read())
body_buf.close(); header_buf.close()
def show_matplotlib(self, p, width="0", height="0", **kwargs):
"""Matplotlib show function
@ -115,6 +135,7 @@ class PyZeppelinContext(object):
style += ","
style += 'height:' + height
print("%html <div style='" + style + "'>" + img.read() + "<div>")
img.close()
z = PyZeppelinContext("")