Matplotlib pyplot savefig output has different data to show
0
I've got a loop for making a large number of charts by filtering a PANDAS dataframe:
def makeChart(name):
plt.clf()
plt.cla()
filename = "plots/" + name.replace(" ","_")
series = df[df['name'] == name]
series_wk = series[['name','start_date','num_nights']].groupby([pd.Grouper(key='start_date', freq='W')]).sum().reset_index()
series_wk['period'] = series_wk.apply(checkperiod, axis=1)
series_wk.set_index('start_date',inplace=True)
series_wk.to_csv(filename + ".csv")
ne = series_wk[series_wk['period'] == "Non-election"]
e = series_wk[series_wk['period'] == "Election"]
fig, ax = plt.subplots(figsize=(15,7))
ax.bar(ne.index, ne['num_nights'], color='b')
ax.bar(e.index, e['num_nights'], color='r')
ax.xaxis.set_major_locator(ticker.MultipleLocator(50))
ax.xaxis.set_major_formatter(mdates.DateFormatter('%d-%m-%Y'))
ax.set_title(name)
plt.xticks(rotation=90)
fig.savefig(filename)
plt.show()
makeChart("CARR Kim")
The output of plt.show() has the correct data, and looks like this
However the saved file has incorrect data, and looks like this.
I'm new to using matplotlib, and really can't figure out why the actual data points would differ here. Any help would be greatly appreciated!
python python-3.x pandas matplotlib
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
add a comment |
0
I've got a loop for making a large number of charts by filtering a PANDAS dataframe:
def makeChart(name):
plt.clf()
plt.cla()
filename = "plots/" + name.replace(" ","_")
series = df[df['name'] == name]
series_wk = series[['name','start_date','num_nights']].groupby([pd.Grouper(key='start_date', freq='W')]).sum().reset_index()
series_wk['period'] = series_wk.apply(checkperiod, axis=1)
series_wk.set_index('start_date',inplace=True)
series_wk.to_csv(filename + ".csv")
ne = series_wk[series_wk['period'] == "Non-election"]
e = series_wk[series_wk['period'] == "Election"]
fig, ax = plt.subplots(figsize=(15,7))
ax.bar(ne.index, ne['num_nights'], color='b')
ax.bar(e.index, e['num_nights'], color='r')
ax.xaxis.set_major_locator(ticker.MultipleLocator(50))
ax.xaxis.set_major_formatter(mdates.DateFormatter('%d-%m-%Y'))
ax.set_title(name)
plt.xticks(rotation=90)
fig.savefig(filename)
plt.show()
makeChart("CARR Kim")
The output of plt.show() has the correct data, and looks like this
However the saved file has incorrect data, and looks like this.
I'm new to using matplotlib, and really can't figure out why the actual data points would differ here. Any help would be greatly appreciated!
python python-3.x pandas matplotlib
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a largerwidthor set anedgecolorexplicitely.
– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30
add a comment |
0
0
0
I've got a loop for making a large number of charts by filtering a PANDAS dataframe:
def makeChart(name):
plt.clf()
plt.cla()
filename = "plots/" + name.replace(" ","_")
series = df[df['name'] == name]
series_wk = series[['name','start_date','num_nights']].groupby([pd.Grouper(key='start_date', freq='W')]).sum().reset_index()
series_wk['period'] = series_wk.apply(checkperiod, axis=1)
series_wk.set_index('start_date',inplace=True)
series_wk.to_csv(filename + ".csv")
ne = series_wk[series_wk['period'] == "Non-election"]
e = series_wk[series_wk['period'] == "Election"]
fig, ax = plt.subplots(figsize=(15,7))
ax.bar(ne.index, ne['num_nights'], color='b')
ax.bar(e.index, e['num_nights'], color='r')
ax.xaxis.set_major_locator(ticker.MultipleLocator(50))
ax.xaxis.set_major_formatter(mdates.DateFormatter('%d-%m-%Y'))
ax.set_title(name)
plt.xticks(rotation=90)
fig.savefig(filename)
plt.show()
makeChart("CARR Kim")
The output of plt.show() has the correct data, and looks like this
However the saved file has incorrect data, and looks like this.
I'm new to using matplotlib, and really can't figure out why the actual data points would differ here. Any help would be greatly appreciated!
python python-3.x pandas matplotlib
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
I've got a loop for making a large number of charts by filtering a PANDAS dataframe:
def makeChart(name):
plt.clf()
plt.cla()
filename = "plots/" + name.replace(" ","_")
series = df[df['name'] == name]
series_wk = series[['name','start_date','num_nights']].groupby([pd.Grouper(key='start_date', freq='W')]).sum().reset_index()
series_wk['period'] = series_wk.apply(checkperiod, axis=1)
series_wk.set_index('start_date',inplace=True)
series_wk.to_csv(filename + ".csv")
ne = series_wk[series_wk['period'] == "Non-election"]
e = series_wk[series_wk['period'] == "Election"]
fig, ax = plt.subplots(figsize=(15,7))
ax.bar(ne.index, ne['num_nights'], color='b')
ax.bar(e.index, e['num_nights'], color='r')
ax.xaxis.set_major_locator(ticker.MultipleLocator(50))
ax.xaxis.set_major_formatter(mdates.DateFormatter('%d-%m-%Y'))
ax.set_title(name)
plt.xticks(rotation=90)
fig.savefig(filename)
plt.show()
makeChart("CARR Kim")
The output of plt.show() has the correct data, and looks like this
However the saved file has incorrect data, and looks like this.
I'm new to using matplotlib, and really can't figure out why the actual data points would differ here. Any help would be greatly appreciated!
python python-3.x pandas matplotlib
python python-3.x pandas matplotlib
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
edited Nov 13 '18 at 0:56
Niklaus
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
asked Nov 13 '18 at 0:38
NiklausNiklaus
12
12
ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a largerwidthor set anedgecolorexplicitely.
– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30
add a comment |
ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a largerwidthor set anedgecolorexplicitely.
– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30
ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a larger
width or set an edgecolor explicitely.– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a larger
width or set an edgecolor explicitely.– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30
add a comment |
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ps - assume the function is properly indented, it broke when I pasted it in!
– Niklaus
Nov 13 '18 at 0:39
Would you mind providing your data file ?
– Patol75
Nov 13 '18 at 3:38
Both are correct and incorrect somehow. Maybe you're more lucky in the first case to see those bars you want to see. The underlying problem is that bars are too small to be shown. Either use a larger
widthor set anedgecolorexplicitely.– ImportanceOfBeingErnest
Nov 13 '18 at 12:17
@ImportanceOfBeingErnest setting an explicit width worked, thank you!
– Niklaus
Nov 14 '18 at 10:30