Return a header with a conditional statement on a dataframe
My data:
Header
Case | PD | PP | 50 | 80 | FW | BA | IA | EA | NA
Case1 | 00 | 23 | 00 | 00 | 21 | 00 | 00 | 00 | 00
Case2 | 00 | 23 | 00 | 00 | 12 | 32 | 14 | 00 | 00
What I want: For every case, I want to return the last header. For example: Case1 would be FW, because FW is the last header with a value (21).
For Case2 it would be "IA", because it is the last header with a value (14).
Right now I have the following:
def getStatus(dataframe):
for index, row in dataframe.iterrows():
def lookup(phase, name):
if phase is not '00':
return name
x = lookup(row['FW'], "FW")
x = lookup(row['BA'], "BA")
x = lookup(row['IA'], "IA")
x = lookup(row['EA'], "EA")
x = lookup(row['NA'], "NA")
x = lookup(row['PP'], "PP")
From a logical view, I thought something like x will do several lookups (def lookup) and always overwrite the value above, if existent.
What I am doing wrong here, what would be a good approach? My approach is not well designed I guess, but I also think a big function with a lot of if and elif is also bad.
python dataframe if-statement
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My data:
Header
Case | PD | PP | 50 | 80 | FW | BA | IA | EA | NA
Case1 | 00 | 23 | 00 | 00 | 21 | 00 | 00 | 00 | 00
Case2 | 00 | 23 | 00 | 00 | 12 | 32 | 14 | 00 | 00
What I want: For every case, I want to return the last header. For example: Case1 would be FW, because FW is the last header with a value (21).
For Case2 it would be "IA", because it is the last header with a value (14).
Right now I have the following:
def getStatus(dataframe):
for index, row in dataframe.iterrows():
def lookup(phase, name):
if phase is not '00':
return name
x = lookup(row['FW'], "FW")
x = lookup(row['BA'], "BA")
x = lookup(row['IA'], "IA")
x = lookup(row['EA'], "EA")
x = lookup(row['NA'], "NA")
x = lookup(row['PP'], "PP")
From a logical view, I thought something like x will do several lookups (def lookup) and always overwrite the value above, if existent.
What I am doing wrong here, what would be a good approach? My approach is not well designed I guess, but I also think a big function with a lot of if and elif is also bad.
python dataframe if-statement
add a comment |
My data:
Header
Case | PD | PP | 50 | 80 | FW | BA | IA | EA | NA
Case1 | 00 | 23 | 00 | 00 | 21 | 00 | 00 | 00 | 00
Case2 | 00 | 23 | 00 | 00 | 12 | 32 | 14 | 00 | 00
What I want: For every case, I want to return the last header. For example: Case1 would be FW, because FW is the last header with a value (21).
For Case2 it would be "IA", because it is the last header with a value (14).
Right now I have the following:
def getStatus(dataframe):
for index, row in dataframe.iterrows():
def lookup(phase, name):
if phase is not '00':
return name
x = lookup(row['FW'], "FW")
x = lookup(row['BA'], "BA")
x = lookup(row['IA'], "IA")
x = lookup(row['EA'], "EA")
x = lookup(row['NA'], "NA")
x = lookup(row['PP'], "PP")
From a logical view, I thought something like x will do several lookups (def lookup) and always overwrite the value above, if existent.
What I am doing wrong here, what would be a good approach? My approach is not well designed I guess, but I also think a big function with a lot of if and elif is also bad.
python dataframe if-statement
My data:
Header
Case | PD | PP | 50 | 80 | FW | BA | IA | EA | NA
Case1 | 00 | 23 | 00 | 00 | 21 | 00 | 00 | 00 | 00
Case2 | 00 | 23 | 00 | 00 | 12 | 32 | 14 | 00 | 00
What I want: For every case, I want to return the last header. For example: Case1 would be FW, because FW is the last header with a value (21).
For Case2 it would be "IA", because it is the last header with a value (14).
Right now I have the following:
def getStatus(dataframe):
for index, row in dataframe.iterrows():
def lookup(phase, name):
if phase is not '00':
return name
x = lookup(row['FW'], "FW")
x = lookup(row['BA'], "BA")
x = lookup(row['IA'], "IA")
x = lookup(row['EA'], "EA")
x = lookup(row['NA'], "NA")
x = lookup(row['PP'], "PP")
From a logical view, I thought something like x will do several lookups (def lookup) and always overwrite the value above, if existent.
What I am doing wrong here, what would be a good approach? My approach is not well designed I guess, but I also think a big function with a lot of if and elif is also bad.
python dataframe if-statement
python dataframe if-statement
asked Nov 21 '18 at 10:04
JohnDoleJohnDole
356
356
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add a comment |
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