How to add pandas data to an existing csv file?
You can specify a python write mode in the pandas to_csv function. For append it is ‘a’. In your case: The default mode is ‘w’.
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How to set timeout on python’s socket recv method?
The typical approach is to use select() to wait until data is available or until the timeout occurs. Only call recv() when data is actually available. To be safe, we also set the socket to non-blocking mode to guarantee that recv() will never block indefinitely. select() can also be used to wait on more than one socket at a time. If you have … Read more
AttributeError: ‘float’ object has no attribute ‘split’4
You are right, such errors mostly caused by NaN representing empty cells. It is common to filter out such data, before applying your further operations, using this idiom on your dataframe df: Alternatively, it may be more handy to use fillna() method to impute (to replace) null values with something default. E.g. all null or NaN‘s can be replaced with the average … Read more
Unknown format code ‘f’ for object of type ‘str’- Folium
The f format code in “{:.0f}”.format(Number) for the Python string formatter requires a floating number, and yet you’re passing to it the variable Number, which is derived from dsa[‘Number’], a string value from the dataframe. You should convert Number to a floating number before passing it to the formatter with “{:.0f}”.format(float(Number)) instead.
Root mean square of a function in python
I’m going to assume that you want to compute the expression given by the following pseudocode: i.e. the square root of the mean of the squared values of elements of y. In numpy, you can simply square y, take its mean and then its square root as follows: So, for example: Do clarify your question … Read more
Tensorflow 2.0 – AttributeError: module ‘tensorflow’ has no attribute ‘Session’
According to TF 1:1 Symbols Map, in TF 2.0 you should use tf.compat.v1.Session() instead of tf.Session() https://docs.google.com/spreadsheets/d/1FLFJLzg7WNP6JHODX5q8BDgptKafq_slHpnHVbJIteQ/edit#gid=0 To get TF 1.x like behaviour in TF 2.0 one can run but then one cannot benefit of many improvements made in TF 2.0. For more details please refer to the migration guide https://www.tensorflow.org/guide/migrate
Coalesce values from 2 columns into a single column in a pandas dataframe
use combine_first():
Logical indexing with lists
As Already explained you are setting the second element using the result of comparing to a list which returns True/1 as bool is a subclass of int. You have a list not a numpy array so you need to iterate over it if you want to change it which you can do with a list comprehension … Read more
How does tuple comparison work in Python?
Tuples are compared position by position: the first item of the first tuple is compared to the first item of the second tuple; if they are not equal (i.e. the first is greater or smaller than the second) then that’s the result of the comparison, else the second item is considered, then the third and … Read more
import pandas_datareader gives ImportError: cannot import name ‘is_list_like’
I meet this error and I found a method to solve it. My pandas and pandas_datareader versions are 0.23 and 0.6. Because the is_list_like is moved to pandas.api.types, I change the fred.py file which is highlighted in the picture. I replace from pandas.core.common import is_list_like with from pandas.api.types import is_list_like, and it works.