/Python/Pandas take first n rows

Pandas take first n rows

Pandas return first row

df_test.iloc[0]
or
df_test['someColumnName'].iloc[0]

6

Source: stackoverflow.com

Df select first n rows

df2 = df.head(N)
# this should select N rows from top and copy to new df
df3 = df.tail(N)
# this should select N rows from bottom and copy to new df

4

Pandas take first n rows

 df.iloc[:n]

2

Returns the first n rows

# Returns the first n rows

df.head()
# Row(age=2, name=u'Alicz')
df.head(1)
# [Row(age=2, name=u'Alice')]

1

Source: spark.apache.org

Similar codes

0 vote293 views1 answer
Mean =[0,0] covariance = [[1,0],[0,100]] ds = np.random.multivariate_normal(mean,covariance,500) dframe = pd.DataFrame(ds, columns=['col1', 'col2']) fig = sns.kdeplot(dframe).get_figure() fig.savefig('kde1.png')
Python
8 votes263 views1 answer
Remove strings from a list python if they're too small
Python
1 vote281 views1 answer
Django populate choice field from database
Python Django
113 votes223 views10 answers
Python choose random element from list
Python
1 vote274 views1 answer
How to make a complex calculator in python
Python
0 vote252 views1 answer
Python tuple range
Python
17 votes221 views5 answers
Read data from csv python
Python
0 vote287 views1 answer
How many orders has customer made database python
Python
0 vote303 views1 answer
How to change the height of an input in python tkinter
Python
0 vote272 views1 answer
Python reference parent module
Python

Share