Connect data points in line chart in Python










0















I defined this function in Python to plot two indicators gini and economic freedom over time.



def PlotCountry(countries):
simple = df_gini.loc[countries, :].sort_values(by = "year", ascending = True)
simple = simple.reset_index()
simple = simple.drop(['rank', '5_regulation'], axis = 1)
simple = simple.round(2)
simple.columns = ["Year", "ISO Code", "Gini Index", "Economic Freedom"]

#Plot a double-axis lineplot
fig, ax1 = plt.subplots()
color = 'darkred'
ax1.set_xlabel('Year')
ax1.set_ylabel('Gini Index', color = color)
ax1.plot("Year", "Gini Index", color = color, data = simple, linestyle='--', marker = ".")
ax1.tick_params(axis='y', labelcolor = color)

ax2 = ax1.twinx() #Instantiate second axis that shares the same x-axis

color = 'darkblue'
ax2.set_ylabel('Economic Freedom', color = color)
ax2.plot("Year", "Economic Freedom", color = color, data = simple)
ax2.tick_params(axis='y', labelcolor=color)

plt.title(countries)

fig.tight_layout() #Otherwise right y-label is slightly clipped
plt.show()


Sometimes the plot I get looks like:
enter image description here



How do I connect the red dots?










share|improve this question

















  • 1





    I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

    – ImportanceOfBeingErnest
    Nov 15 '18 at 3:20















0















I defined this function in Python to plot two indicators gini and economic freedom over time.



def PlotCountry(countries):
simple = df_gini.loc[countries, :].sort_values(by = "year", ascending = True)
simple = simple.reset_index()
simple = simple.drop(['rank', '5_regulation'], axis = 1)
simple = simple.round(2)
simple.columns = ["Year", "ISO Code", "Gini Index", "Economic Freedom"]

#Plot a double-axis lineplot
fig, ax1 = plt.subplots()
color = 'darkred'
ax1.set_xlabel('Year')
ax1.set_ylabel('Gini Index', color = color)
ax1.plot("Year", "Gini Index", color = color, data = simple, linestyle='--', marker = ".")
ax1.tick_params(axis='y', labelcolor = color)

ax2 = ax1.twinx() #Instantiate second axis that shares the same x-axis

color = 'darkblue'
ax2.set_ylabel('Economic Freedom', color = color)
ax2.plot("Year", "Economic Freedom", color = color, data = simple)
ax2.tick_params(axis='y', labelcolor=color)

plt.title(countries)

fig.tight_layout() #Otherwise right y-label is slightly clipped
plt.show()


Sometimes the plot I get looks like:
enter image description here



How do I connect the red dots?










share|improve this question

















  • 1





    I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

    – ImportanceOfBeingErnest
    Nov 15 '18 at 3:20













0












0








0








I defined this function in Python to plot two indicators gini and economic freedom over time.



def PlotCountry(countries):
simple = df_gini.loc[countries, :].sort_values(by = "year", ascending = True)
simple = simple.reset_index()
simple = simple.drop(['rank', '5_regulation'], axis = 1)
simple = simple.round(2)
simple.columns = ["Year", "ISO Code", "Gini Index", "Economic Freedom"]

#Plot a double-axis lineplot
fig, ax1 = plt.subplots()
color = 'darkred'
ax1.set_xlabel('Year')
ax1.set_ylabel('Gini Index', color = color)
ax1.plot("Year", "Gini Index", color = color, data = simple, linestyle='--', marker = ".")
ax1.tick_params(axis='y', labelcolor = color)

ax2 = ax1.twinx() #Instantiate second axis that shares the same x-axis

color = 'darkblue'
ax2.set_ylabel('Economic Freedom', color = color)
ax2.plot("Year", "Economic Freedom", color = color, data = simple)
ax2.tick_params(axis='y', labelcolor=color)

plt.title(countries)

fig.tight_layout() #Otherwise right y-label is slightly clipped
plt.show()


Sometimes the plot I get looks like:
enter image description here



How do I connect the red dots?










share|improve this question














I defined this function in Python to plot two indicators gini and economic freedom over time.



def PlotCountry(countries):
simple = df_gini.loc[countries, :].sort_values(by = "year", ascending = True)
simple = simple.reset_index()
simple = simple.drop(['rank', '5_regulation'], axis = 1)
simple = simple.round(2)
simple.columns = ["Year", "ISO Code", "Gini Index", "Economic Freedom"]

#Plot a double-axis lineplot
fig, ax1 = plt.subplots()
color = 'darkred'
ax1.set_xlabel('Year')
ax1.set_ylabel('Gini Index', color = color)
ax1.plot("Year", "Gini Index", color = color, data = simple, linestyle='--', marker = ".")
ax1.tick_params(axis='y', labelcolor = color)

ax2 = ax1.twinx() #Instantiate second axis that shares the same x-axis

color = 'darkblue'
ax2.set_ylabel('Economic Freedom', color = color)
ax2.plot("Year", "Economic Freedom", color = color, data = simple)
ax2.tick_params(axis='y', labelcolor=color)

plt.title(countries)

fig.tight_layout() #Otherwise right y-label is slightly clipped
plt.show()


Sometimes the plot I get looks like:
enter image description here



How do I connect the red dots?







python matplotlib line






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 15 '18 at 2:28









Guillermina Sutter SchneiderGuillermina Sutter Schneider

11511




11511







  • 1





    I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

    – ImportanceOfBeingErnest
    Nov 15 '18 at 3:20












  • 1





    I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

    – ImportanceOfBeingErnest
    Nov 15 '18 at 3:20







1




1





I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

– ImportanceOfBeingErnest
Nov 15 '18 at 3:20





I guess you shouldn't connect the dots, since that would mean that the values in between could be interpolated. However, it seems there is data missing, which is obvious from the current plot, but not from one where they are connected. If you want to ignore this warning and possibly deliberately fool the reader of the chart, you can probably just use .dropna() on the data.

– ImportanceOfBeingErnest
Nov 15 '18 at 3:20












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