I have a data set that contains hourly data of marketing campaigns. There are several campaigns and not all of them are active during the 24 hours of the day. My goal is to eliminate all rows of active hour campaigns where I don’t have the 24 data rows of a single day. The raw data contains a lot of
Tag: pandas
Create pandas dataframe from multiple sources
I need to create a pandas dataframe using information from two different sources. For example, The first 3 columns in the dataframe I want should contain c1, c2, c3, and the rest of the columns come from the key of the returnedDict. The number of keys in the returnedDict is 100. How can I initialize such Data…
How to replace ffill() method with custom function in pandas
here is my sample df: If I would like to replace the NaN values and ffill the last number (70.2 – in this case), I would simply apply: However, what if I would like to apply a custom function instead of ffill() method: For instance, I need the NaN values of y column to be replaced with “2 * x^2…
How to set groups by the percentiles of whole sample?
I am new to pandas, and I want to figure out how to group values based on sample quantiles. For example, I have a dataframe with a column a. df = pd.DataFrame(np.random.randint(0,100,size=(100, 1)), columns=list(‘a’)) Then what I want to do is to divide the values in a into 10 different group by t…
why am i getting TypeError: dtype datetime64[ns] cannot be converted to timedelta64[ns]?
The code: i have lots of dates in a column which i want to convert to number of days but i simply keep getting errors. im new to pandas so sorry if the question is silly but why am i getting errors and how to fix them. Thank you Answer To get the number of days to now, use:
How to clean survey data in pandas
Input: Output: here’s the data: d = {‘Morning’: [“Didn’t answer”, “Didn’t answer”, “Didn’t answer”, ‘Morning’, “Didn’t answer”], ‘Afternoon’: [“Didn’t answer”, ‘Afternoon&#…
How to replace cost of an item with the previous cost of the same item in a dataframe using Pandas?
Suppose I have the following dataframe: And I want to replace the cost of the current item with the cost of the previous item using Pandas, with the first instance of each item being deleted. So the above dataframe would become What’s a good way to do it? Answer You can use groupby on Item as well. This…
Pandas Reading csv file with ” in the data
I want to parse CSV file but the data look like in the below. While using separator as ,” it does not distribute file correctly to the columns. Is there any way to ignore ” or escaping with regex? 3,”Gunnar Nielsen Aaby”,”M”,24,NA,NA,”Denmark”,”DEN” …
Populate next row event in current row based on the event in Pandas dataframe
BrkPressState VehSpdGS 1 2 1 3 1 2 1 4 0 12 0 13 0 11 1 3 0 15 0 14 0 15 1 12 1 13 0 14 For the above table i am trying to populate the next row value in previous last event, Like the below table I tried with Shift – 1 but its populating
Return highest correlation values pandas
I have this function This is the output How can return the highest correlation values that are lower than 1? That is, I want to remove the 1s that appear on the top when I use sort_values(ascending=False) Answer Multiindex Series from the Pandas User Guide Filter for values less than one.