setting y-axis limit in matplotlib

Question

I need help with setting the limits of y-axis on matplotlib  Here is the code that I tried  unsuccessfully   import matplotlib pyplot as plt  plt figure 1  figsize    8 5 11   plt suptitle  plot title   ax      aPlot   plt subplot 321  axisbg    w   title    Year 1   ax append aPlot  plt plot paramValues plotDataPrice 0   color     340B8C         marker    o   ms   5  mfc     EB1717   plt xticks paramValues  plt ylabel  Average Price   plt xlabel  Mark-up   plt grid True  plt ylim  25 250     With the data I have for this plot  I get y-axis limits of 20 and 200  However  I want the limits 20 and 250

User · Answer

If an axes  generated by code below the code shown in the question  is sharing the range with the first axes  make sure that you set the range after the last plot of that axes

User · Answer

Just for fine tuning  If you want to set only one of the boundaries of the axis and let the other boundary unchanged  you can choose one or more of the following statements  plt xlim right xmax   xmax is your value plt xlim left xmin   xmin is your value plt ylim top ymax   ymax is your value plt ylim bottom ymin   ymin is your value   Take a look at the documentation for xlim and for ylim

User · Answer

Try this   Works for subplots too    axes   plt gca   axes set xlim  xmin xmax   axes set ylim  ymin ymax

User · Answer

This worked at least in matplotlib version 2 2 2   plt axis  None  None  0  100     Probably this is a nice way to set up for example xmin and ymax only  etc

User · Answer

You can instantiate an object from matplotlib pyplot axes and call the set ylim   on it  It would be something like this   import matplotlib pyplot as plt axes   plt axes   axes set ylim  0  1

User · Answer

To add to  Hima s answer  if you want to modify a current x or y limit you could use the following   import numpy as np   you probably alredy do this so no extra overhead fig  axes   plt subplot   axes plot data   0   data   1   xlim   axes get xlim     example of how to zoomout by a factor of 0 1 factor   0 1  new xlim    xlim 0    xlim 1   2   np array  -0 5  0 5      xlim 1  - xlim 0      1   factor   axes set xlim new xlim    I find this particularly useful when I want to zoom out or zoom in just a little from the default plot settings

User · Answer

This should work   Your code works for me  like for Tam  s and Manoj Govindan   It looks like you could try to update Matplotlib   If you can t update Matplotlib  for instance if you have insufficient administrative rights   maybe using a different backend with matplotlib use   could help

User · Answer

Your code works also for me  However  another workaround can be to get the plot s axis and then change only the y-values   x1 x2 y1 y2   plt axis   plt axis  x1 x2 25 250

User · Answer

One thing you can do is to set your axis range by yourself by using matplotlib pyplot axis   matplotlib pyplot axis  from matplotlib import pyplot as plt plt axis  0  10  0  20     0 10 is for x axis range  0 20 is for y axis range    or you can also use matplotlib pyplot xlim or matplotlib pyplot ylim  matplotlib pyplot ylim  plt ylim -2  2  plt xlim 0 10

[python] setting y-axis limit in matplotlib

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