MatPlotLib Multiple datasets on the same scatter plot

Question

I want to plot multiple data sets on the same scatter plot   cases   scatter x  4   y  4   s 10  c  b   marker  s   controls   scatter x 4    y 4    s 10  c  r   marker  o    show     The above only shows the most recent scatter    I ve also tried   plt   subplot 111  plt scatter x  4   y  4   s 10  c  b   marker  s   plt scatter x 4    y 4    s 10  c  r   marker  o   show

User · Answer

I came across this question as I had exact same problem  Although accepted answer works good but with matplotlib version 2 1 0  it is pretty straight forward to have two scatter plots in one plot without using a reference to Axes  import matplotlib pyplot as plt  plt scatter x y  c  b   marker  x   label  1   plt scatter x  y  c  r   marker  s   label  -1   plt legend loc  upper left   plt show

User · Answer

You need a reference to an Axes object to keep drawing on the same subplot   import matplotlib pyplot as plt  x   range 100  y   range 100 200  fig   plt figure   ax1   fig add subplot 111   ax1 scatter x  4   y  4   s 10  c  b   marker  s   label  first   ax1 scatter x 40   y 40    s 10  c  r   marker  o   label  second   plt legend loc  upper left    plt show

User · Answer

I don t know  it works fine for me  Exact commands   import scipy  pylab ax   pylab subplot 111  ax scatter scipy randn 100   scipy randn 100   c  b   ax scatter scipy randn 100   scipy randn 100   c  r   ax figure show

User · Answer

You can also do this easily in Pandas  if your data is represented in a Dataframe  as described here   http   pandas pydata org pandas-docs version 0 15 0 visualization html scatter-plot

[python] MatPlotLib: Multiple datasets on the same scatter plot

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