Plotting a scatter plot from a list

Question

Consider:

House_prices = [10050, 42300, 50206, 105000, 22350]
Num_rooms = [4, 5, 6, 10, 12, 2]**

This is the code that I have tried:

x = df.House_prices
y = df.Num_rooms
plt.scatter(x,y)
plt.show()

I want to plot both House_prices and Num_rooms into a scatter plot.

But I got the error:

'list' object has no attribute 'House_prices'

Does this answer your question? [How can I remove Nan from list Python/NumPy](https://stackoverflow.com/questions/21011777/how-can-i-remove-nan-from-list-python-numpy) — Bruno Mello, Apr 01 '20 at 14:22
try ```df = pd.DataFrame(House_prices)```, then use ```df.dropna``` — Aven Desta, Apr 01 '20 at 14:28
I would double check, whether your ```nan``` is ```numpy.nan``` or rather just a string, which says ```"nan"``` — Grzegorz Skibinski, Apr 01 '20 at 14:53

score 0 · Answer 1 · answered Apr 01 '20 at 14:22

0

You assign House_prices to df. House_prices is a list and list does not have a drop attribute.

answered Apr 01 '20 at 14:22

Tom Ron

How do I remove the np.nan? – Apr 01 '20 at 14:26
how do you remove a certain element from a list? – Aven Desta Apr 01 '20 at 14:26
https://stackoverflow.com/questions/1157106/remove-all-occurrences-of-a-value-from-a-list – Tom Ron Apr 01 '20 at 15:03

score 0 · Accepted Answer · answered Apr 01 '20 at 14:29

0

A list is not a DataFrame: you must explicitely build the DataFrame:

df = pd.DataFrame(House_prices, columns=['House_prices'])

From that point, you will be able to use all dataframes methods on df including dropna

answered Apr 01 '20 at 14:29

Serge Ballesta

df = pd.DataFrame(House_prices, columns=['House_prices']) df.dropna(axis=0, how='all', inplace=True) print('Total number of data points in House_prices = ',np.count_nonzero(~np.isnan(House_prices))) print(House_prices) – Apr 01 '20 at 14:32
I have tried it – Apr 01 '20 at 14:33
Total number of data points in House_prices = 5 [10050, 42300, 50206, nan, 105000, nan, 22350] – Apr 01 '20 at 14:33
but there is still "nan" inside and i dont know how to remove it – Apr 01 '20 at 14:33
@Samuel: In my tests, `dropna` removed the nan... Maybe you should ask a new question (editing this one will make all the answers incorrect) with the new details. – Serge Ballesta Apr 01 '20 at 14:41

score 0 · Answer 3 · edited Apr 10 '20 at 02:18

0

Here house_prices is a list and lists doesn't have drop features.

In order to remove the np.nan values from a list, you may use the below logic:

New_list = [x for x in house_prices if x != "Np.nan"]

edited Apr 10 '20 at 02:18

Peter Mortensen

answered Apr 01 '20 at 14:30

NOUFAL RIJAL

3 Answers3