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import pandas as pd# reading a CSV file into a pandas dataframe
df = pd.read_csv("https://query.data.world/s/prebskqer67rjhcqfoea7n5wxh7m4u")# applying filter
df = df[df.SEX == 'Total']
df.columns = ['SEX', 'AGE', 'Population']
# selecting required columns
df = df.loc[:, ['AGE', 'Population']]
# calculating year of birth
df['birthYear'] = 2019 - df.AGE
# sorting values
df = df.sort_values('birthYear')
display(df.head())# importing plotly
import plotly.express as px
# plotting bar graph
fig = px.bar(df, x=df.birthYear, y=df.Population,
title="BY BIRTH YEAR GENERATION POPULATIONS")
fig.show()#step 1 - update background
fig.update_layout(
plot_bgcolor = '#DCD2C4',
paper_bgcolor = '#DCD2C4'
)# step 2 - update marker
bins = [1918,1927, 1945, 1964, 1980, 1996, 2012, 2019]
labels = ["#00C3A9","#00AD90","#00C3A9","#00AD90","#00C3A9","#00AD90",
"#00C3A9"]
colors = pd.cut(df.birthYear, bins=bins, labels=labels, ordered=False)
fig.update_traces(
marker_color=colors,
marker_line_color='#DCD2C4',
marker_line_width=0.5,
opacity=0.5
)# step 3 - Deleting grid line and zeroline
fig.update_yaxes(
showgrid=False,
zeroline = False,
)
# step 4 - Adjusting Bar Gap
fig.update_layout(
bargap=0.0001
)# step 5a - Update Titles
fig.update_xaxes(
title=dict(
text='Birth Year',
font=dict(size=18, family="Trebuchet MS"),
standoff=20
),
)
fig.update_yaxes(
title=dict(
text='Population',
font=dict(size=18, family="Trebuchet MS"),
standoff=20
),
)
fig.update_layout(
title=dict(
text='BY BIRTH YEAR GENERATION POPULATIONS',
font=dict(size=28, family="Trebuchet MS"),
x=0.5,
)
)# Step 6 - Specifying Generation Reigns
datetoannote = [1927.5, 1945.5, 1964.5, 1980.5, 1996.5, 2012.5]
for i in datetoannote:
fig.add_vline(
x=i,
fillcolor="black", opacity=1,layer="above", line_width=2,
line_dash="dot"
)
fig.add_annotation(
text=str(int(i+0.5)),
xref="x", yref="y",textangle=270,
x=i+1, y=4800000, showarrow=False
)
# step 7 adding annotation
y = 6600000
y_toadd = 200000
fig.add_annotation(
text="#7<br><b>GREATEST <br> GENERATION</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=1920, y=y, showarrow=False
)
fig.add_annotation(
text="#6<br><b>SILENT <br> GENERATION</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=1937, y=y, showarrow=False
)
fig.add_annotation(
text="#2<br><b>BOOMERS</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=1955, y=y+y_toadd, showarrow=False
)
fig.add_annotation(
text="#4<br><b>GENERATION X</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color = 'black'),
align = 'center', x=1972.5, y=y+y_toadd, showarrow=False
)
fig.add_annotation(
text="#1<br><b>MILLENNIALS</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=1988.5, y=y+y_toadd, showarrow=False
)
fig.add_annotation(
text="#3<br><b>GENERATION Z</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=2004.5, y=y+y_toadd, showarrow=False
)
fig.add_annotation(
text="#5<br><b>GENERATION <br> ALPHA</b><br>",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=14,color='black'),
align = 'center', x=2020, y=y, showarrow=False
)
fig.add_annotation(
text="1.7M | 0.5%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=1920, y=5550000, showarrow=False
)
fig.add_annotation(
text="23.2M | 7.1%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=1937, y=5550000, showarrow=False
)
fig.add_annotation(
text="71.6M | 21.8%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=1955, y=5550000, showarrow=False
)
fig.add_annotation(
text="65.2M | 19.9%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=1973, y=5550000, showarrow=False
)
fig.add_annotation(
text="72.1M | 22.0%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=1989, y=5550000, showarrow=False
)
fig.add_annotation(
text="66.9M | 20.4%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=2005, y=5550000, showarrow=False
)
fig.add_annotation(
text="27.6M | 8.4%",
xref="x", yref="y",textangle=0,
font=dict(family="Trebuchet MS",size=12,color='black'),
x=2020, y=5550000, showarrow=False
)
fig.add_annotation(
text=" Total %POP.",
font=dict(family="Courier New, monospace",size=11,color = 'black'),
xref="x", yref="y",textangle=0,align="center",
x=1920, y=5200000, showarrow=False
)
fig.add_annotation(
text="Those born before<br> 1920 were grouped<br> together",
font=dict(family="Courier New, monospace",size=10,color = 'black'),
xref="x", yref="y",textangle=0,align="right",
x=1919, y=100322, showarrow=True
)# Step 8 - update axes
fig.update_xaxes(
range=[1915,2020],
showline=True,
linecolor='black',
linewidth=3,
showgrid=False,
layer='above traces',
showticklabels=True,
tickmode = 'array',
tickvals = [1920, 1930, 1940, 1950, 1960, 1970,
1980, 1990, 2000, 2010, 2019],
ticks="outside",
tickwidth=1.5,
tickcolor='black',
ticklen=10,
tickprefix = " ",
ticksuffix = " ",
fixedrange=True,
)
fig.update_yaxes(
showline = False,
showgrid=False,
fixedrange=True,
zeroline = False,
tickmode = 'array',
ticktext=[0, "1 ", "2 ", "3 ", "4 "],
tickvals = [0, 1000000, 2000000, 3000000, 4000000],
ticks="inside",
tickwidth=1,
tickcolor='black',
ticklen=10,
)# updating fig size, margin and titles
fig.update_layout(
height=700,
margin=dict(t=120, l=60, r=60, b=60, pad = 0),
title="",
yaxis_title="",
xaxis_title=""
)
fig.add_annotation(
text="BIRTH YEAR",
xref="paper", yref="paper",
x=0.01, y=-0.09, showarrow=False
)
fig.add_annotation(
text="MILLION PEOPLE",
xref="paper", yref="paper",
x=-0.02, y=0.65, showarrow=False
)
fig.add_annotation(
text="Compiled from population estimates from the\
United States Census Bureau for July 2019",
xref="paper", yref="paper",
font=dict(family="Courier",size=11,color = 'black'),
x=1.05, y=-0.12, showarrow=False
)
fig.add_shape(
type="rect",x0=0.02, y0=1.09, x1=0.03, y1=1.15,
xref='paper', yref='paper',
line=dict(color='black',width=1),
fillcolor='black',opacity = 0.5
)
fig.add_annotation(
text="GENERATION POPULATIONS,",
xref='paper', yref='paper',x= 0.03,y=1.14,
textangle=0,align="right",showarrow=False,
font=dict(size=25, family="Trebuchet MS", color="#00AD90")
)
fig.add_annotation(
text="WITH RANKINGS BY MOST NUMBER OF PEOPLE ALIVE",
xref='paper', yref='paper', x=0.61, y=1.125,
textangle=0,align="right",showarrow=False,
font=dict(size=15, family="Trebuchet MS", color="#00C3A9")
)