Conditional marker for scatterplot Matplotlib

Publicado el: 12 octubre 2024
en el canal de: Emrah KAYA

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I am trying to plot x1 and x2 against each other, and if class == 1, then marker should be +, if class == 0, then the marker should just be a dot.
The file.csv is structured like this, the class column which is the conditional will only be either 1 or 0:

x1
x2
mark

1
2
0

9
4
1

0
5
1

2
6
0

x1
x2
mark

1
2
0

9
4
1

0
5
1

2
6
0

x1
x2
mark

x1
x2
mark

x1
x2
mark

1
2
0

9
4
1

0
5
1

2
6
0

1
2
0

1
2
0

9
4
1

9
4
1

0
5
1

0
5
1

2
6
0

2
6
0
Here's the code I have:
df = pd.read_csv('file.csv')
print(df)
x1 = df['x1'].to_numpy()
x2 = df['x2'].to_numpy()
mark = df['class'].to_numpy()

figure, ax = plt.subplots()

for i in range(0,80,1):
if mark[i] 0:
ax.plot(x1[i], color="red", marker='o')
else:
ax.plot(x1[i], color="blue", marker='x')

df = pd.read_csv('file.csv')
print(df)
x1 = df['x1'].to_numpy()
x2 = df['x2'].to_numpy()
mark = df['class'].to_numpy()

figure, ax = plt.subplots()

for i in range(0,80,1):
if mark[i] 0:
ax.plot(x1[i], color="red", marker='o')
else:
ax.plot(x1[i], color="blue", marker='x')

This is what the result SHOULD look like:

Tags: python,pandas,matplotlib,plot,matplotlibpyplotSource of the question:
https://stackoverflow.com/questions/7...

Question and source license information:
https://meta.stackexchange.com/help/l...
https://stackoverflow.com/

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