I have 3 columns
A B C
1 ABC 5 1
2 CDE 6 3
3 CDE 7 3
4 ABC 8 4
5 FGH 9 5
6 GFH 1 6
7 FGH 2 7
8 GFE 3 8
9 ABC 4 9
How do I sum up the values for column B and C for the cells that contain ABC. Because ABC is on row number 1, 4, and 9. But how do I use this when I have plenty of rows.
Consider:
=SUMPRODUCT((A1:A9="ABC")*(B1:B9))+SUMPRODUCT((A1:A9="ABC")*(C1:C9))
Related
Starting Dataframe:
A B
0 1 1
1 1 2
2 2 3
3 3 4
4 3 5
5 1 6
6 1 7
7 1 8
8 2 9
Desired result - eg. Remove rows where column A has values that match the row above or below:
A B
0 1 1
2 2 3
3 3 4
5 1 6
8 2 9
You can use boolean indexing, the following condition will return true if value of A is NOT equal to value of A's next row
new_df = df[df['A'].ne(df['A'].shift())]
A B
0 1 1
2 2 3
3 3 4
5 1 6
8 2 9
I have three columns, A, B and D
Column A and B have integer numbers that Im trying to map to column D which looks something like this:
A
B
C
D
1
3
7
2
4
9
I want to populate column C with column D's data, but I need to look like bellow:
A
B
C
D
1
3
7
7
2
4
7
9
3
3
7
4
4
7
5
3
7
1
4
9
2
3
9
3
4
9
4
3
9
5
4
9
I need to map column D and duplicate those numbers down to Column A and have Column C change every time Column A repeats to the first number, which in this case is 1
I have a df like this:
Index Parameters A B C D E
1 Apple 1 2 3 4 5
2 Banana 2 4 5 3 5
3 Potato 3 5 3 2 1
4 Tomato 1 1 1 1 1
5 Pear 4 5 5 4 3
I want to add all the rows which has Parameter values as "Apple" , "Banana" and "Pear".
Output:
Index Parameters A B C D E
1 Apple 1 2 3 4 5
2 Banana 2 4 5 3 5
3 Potato 3 5 3 2 1
4 Tomato 1 1 1 1 1
5 Pear 4 5 5 4 3
6 Total 7 11 13 11 13
My Effort:
df[:,'Total'] = df.sum(axis=1) -- Works but I want specific values only and not all
Tried by the index in my case 1,2 and 5 but in my original df the index can vary from time to time and hence rejected that solution.
Saw various answers on SO but none of them could solve my problem!!
First idea is create index by Parameters column and select rows for sum and last convert index to column:
L = ["Apple" , "Banana" , "Pear"]
df = df.set_index('Parameters')
df.loc['Total'] = df.loc[L].sum()
df = df.reset_index()
print (df)
Parameters A B C D E
0 Apple 1 2 3 4 5
1 Banana 2 4 5 3 5
2 Potato 3 5 3 2 1
3 Tomato 1 1 1 1 1
4 Pear 4 5 5 4 3
5 Total 7 11 13 11 13
Or add new row for filtered rows by membership with Series.isin and overwrite last added value by Total:
last = len(df)
df.loc[last] = df[df['Parameters'].isin(L)].sum()
df.loc[last, 'Parameters'] = 'Total'
print (df)
Parameters A B C D E
Index
1 Apple 1 2 3 4 5
2 Banana 2 4 5 3 5
3 Potato 3 5 3 2 1
4 Tomato 1 1 1 1 1
5 Total 7 11 13 11 13
Another similar solution is filtering all columns without first and add value in one element list:
df.loc[len(df)] = ['Total'] + df.iloc[df['Parameters'].isin(L).values, 1:].sum().tolist()
from pandas import *
import StringIO
df = read_csv(StringIO.StringIO('''id months state
1 1 C
1 2 3
1 3 6
1 4 9
2 1 C
2 2 C
2 3 3
2 4 6
2 5 9
2 6 9
2 7 9
2 8 C
'''), delimiter= '\t')
I want to create a column show the cumulative state of column state, by id.
id months state result
1 1 C C
1 2 3 C3
1 3 6 C36
1 4 9 C369
2 1 C C
2 2 C CC
2 3 3 CC3
2 4 6 CC36
2 5 9 CC69
2 6 9 CC699
2 7 9 CC6999
2 8 C CC6999C
Basically the cum concatenation of string columns. What is the best way to do it?
So long as the dtype is str then you can do the following:
In [17]:
df['result']=df.groupby('id')['state'].apply(lambda x: x.cumsum())
df
Out[17]:
id months state result
0 1 1 C C
1 1 2 3 C3
2 1 3 6 C36
3 1 4 9 C369
4 2 1 C C
5 2 2 C CC
6 2 3 3 CC3
7 2 4 6 CC36
8 2 5 9 CC369
9 2 6 9 CC3699
10 2 7 9 CC36999
11 2 8 C CC36999C
Essentially we groupby on 'id' column and then apply a lambda with a transform to return the cumsum. This will perform a cumulative concatenation of the string values and return a Series with it's index aligned to the original df so you can add it as a column
I have two cols in Calc and want to compare both and print in col if it's a duplicate. Example:
A B C
1 2
2 2 2
3 3 3
4 5
5 6
6 7
7 7 7
8 8 8
9 9 9
What is the formula I need to print in col c to get this?
The formula to use in column C, to test if columns A and B are equals
=IF(A1=B1;B1;"")