plotfile: would like to certain number of rows...how do I do that?

Community matplotlib-users
1

i would only like to plot a certain number of rows...say 50 - 100...how do i
do that?

Thanks everyone for your help :slight_smile:

···

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2

plotfile does not support row limits, but you could simply load the
data and then plot it, slicing it however you'd like.

  import numpy as np
  import matplotlib.pyplot as plt
  x = np.loadtxt('myfile.dat')
  plt.plot(x[50:100])

Does gnuplot support row ranges in plotfile? I could easily add
them.... I am not a plotfile user so I don't know what people find
useful there, but limiting the row ranges makes some sense. If I make
the changes, I'd like to make them maximally gnuplot compatible since
this was te inspiration for plotfile.

JDH

···

On Sat, Jan 10, 2009 at 12:50 PM, helstreak <helstreak@...32...> wrote:

i would only like to plot a certain number of rows...say 50 - 100...how do i
do that?

Thanks everyone for your help :slight_smile:

3

not sure if it does, but if you added it to matplotlib then i guess you would
have a one up on gnuplot...

John Hunter-4 wrote:

···

On Sat, Jan 10, 2009 at 12:50 PM, helstreak <helstreak@...32...> wrote:

i would only like to plot a certain number of rows...say 50 - 100...how
do i
do that?

Thanks everyone for your help :slight_smile:

plotfile does not support row limits, but you could simply load the
data and then plot it, slicing it however you'd like.

  import numpy as np
  import matplotlib.pyplot as plt
  x = np.loadtxt('myfile.dat')
  plt.plot(x[50:100])

Does gnuplot support row ranges in plotfile? I could easily add
them.... I am not a plotfile user so I don't know what people find
useful there, but limiting the row ranges makes some sense. If I make
the changes, I'd like to make them maximally gnuplot compatible since
this was te inspiration for plotfile.

JDH

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