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logx for DataFrame.plot() and Series.plot() #2565

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logx for DataFrame.plot() and Series.plot() #2565

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26 changes: 15 additions & 11 deletions pandas/tools/plotting.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1304,8 +1304,8 @@ class HistPlot(MPLPlot):
def plot_frame(frame=None, x=None, y=None, subplots=False, sharex=True,
sharey=False, use_index=True, figsize=None, grid=False,
legend=True, rot=None, ax=None, style=None, title=None,
xlim=None, ylim=None, logy=False, xticks=None, yticks=None,
kind='line', sort_columns=False, fontsize=None,
xlim=None, ylim=None, logx=False, logy=False, xticks=None,
yticks=None, kind='line', sort_columns=False, fontsize=None,
secondary_y=False, **kwds):

"""
Expand Down Expand Up @@ -1342,6 +1342,8 @@ def plot_frame(frame=None, x=None, y=None, subplots=False, sharex=True,
kind : {'line', 'bar', 'barh'}
bar : vertical bar plot
barh : horizontal bar plot
logx : boolean, default False
For line plots, use log scaling on x axis
logy : boolean, default False
For line plots, use log scaling on y axis
xticks : sequence
Expand Down Expand Up @@ -1383,17 +1385,17 @@ def plot_frame(frame=None, x=None, y=None, subplots=False, sharex=True,
return plot_series(frame[y], label=y, kind=kind, use_index=use_index,
rot=rot, xticks=xticks, yticks=yticks,
xlim=xlim, ylim=ylim, ax=ax, style=style,
grid=grid, logy=logy, secondary_y=secondary_y,
title=title, figsize=figsize, fontsize=fontsize,
**kwds)
grid=grid, logx=logx, logy=logy,
secondary_y=secondary_y, title=title,
figsize=figsize, fontsize=fontsize, **kwds)

plot_obj = klass(frame, kind=kind, subplots=subplots, rot=rot,
legend=legend, ax=ax, style=style, fontsize=fontsize,
use_index=use_index, sharex=sharex, sharey=sharey,
xticks=xticks, yticks=yticks, xlim=xlim, ylim=ylim,
title=title, grid=grid, figsize=figsize, logy=logy,
sort_columns=sort_columns, secondary_y=secondary_y,
**kwds)
title=title, grid=grid, figsize=figsize, logx=logx,
logy=logy, sort_columns=sort_columns,
secondary_y=secondary_y, **kwds)
plot_obj.generate()
plot_obj.draw()
if subplots:
Expand All @@ -1403,8 +1405,8 @@ def plot_frame(frame=None, x=None, y=None, subplots=False, sharex=True,

def plot_series(series, label=None, kind='line', use_index=True, rot=None,
xticks=None, yticks=None, xlim=None, ylim=None,
ax=None, style=None, grid=None, legend=False, logy=False,
secondary_y=False, **kwds):
ax=None, style=None, grid=None, legend=False, logx=False,
logy=False, secondary_y=False, **kwds):
"""
Plot the input series with the index on the x-axis using matplotlib

Expand All @@ -1424,6 +1426,8 @@ def plot_series(series, label=None, kind='line', use_index=True, rot=None,
matplotlib line style to use
ax : matplotlib axis object
If not passed, uses gca()
logx : boolean, default False
For line plots, use log scaling on x axis
logy : boolean, default False
For line plots, use log scaling on y axis
xticks : sequence
Expand Down Expand Up @@ -1464,7 +1468,7 @@ def plot_series(series, label=None, kind='line', use_index=True, rot=None,
if label is None:
label = series.name

plot_obj = klass(series, kind=kind, rot=rot, logy=logy,
plot_obj = klass(series, kind=kind, rot=rot, logx=logx, logy=logy,
ax=ax, use_index=use_index, style=style,
xticks=xticks, yticks=yticks, xlim=xlim, ylim=ylim,
legend=legend, grid=grid, label=label,
Expand Down