Python Fixed Width

In this article we need basic concept of some module of python such as “Matplotlib” and “Numpy”. In this article we are going to understand how to set the axis range of any graph in matplotlib using python. Let say we have to plot some graph in matplotlib which have x-axis and y-axis coordinate, let say x-axis extends from 0 to 10 and y-axis extends according to the relation between x and y. But we want to modify the range of x and y coordinates, let say x-axis now extends from 0 to 6 and y-axis now extends to 0 to 25 after modifying.

Python Fixed Width Float
Python Format Fixed Width
Python Fixed Width Integer

Setting axis range in matplotlib using Python

We can limit the value of modified x-axis and y-axis by using two different functions:-

Quick-start Tutorial¶ The usual start to using decimals is importing the module, viewing the current. Check out this page from the Python docs: Built-in Types. The page is pretty daunting but the string and dictionary bits will help shed some light. I have modified your code to read each line separately, extract the record type (as it is a known width), then write the record type and other info to a Python dictionary using the record type as a.

set_xlim() :- For modifying x-axis range
set_ylim() :- For modifying y-axis range

These limit functions always accept a list containing two values, first value for lower bound and second value for upper bound. This limit the coordinates between these two values.

Let us understand it with some example.

For modifying x-axis range

Let say we have to create a plot of x-coordinates of 0 to 10 and y-coordinates be the cube of each of these x-coordinates. We then modify the x-coordinates from 0 to 6.

Before modification in x-coordinates:-

Output :-

After modification in x-coordinates :-

Output:-

Explanation:-

Here, the first thing we have to do is to import two python module “matplotlib” and “numpy” by these line of codes :-

import matplotlib.pyplot as plt
import numpy as np

Then we create a variable named “a” and set its value to plt.figure().

This creates a figure object, which is initially empty, because we haven’t inserted anything in it. Then add axes to this figure. We then have our x-coordinates that ranges from 0 to 10. We then plot the cube of x-coordinates.

Now set the limit of the x coordinates from 0 to 6 using the “set_xlim()” function. Again, this function takes in a list composed of 2 values. The first value is the lower limit and the second value is the upper limit.

Then we show the figure with the show() function.

For modifying y-axis range

Similarly, we have to create a plot of x-coordinates of 0 to 10 and y-coordinates be the cube of each of these x-coordinates. We then modify the y-coordinates from 0 to 25.

Before modification in x-coordinates :- Same as stated in uppercase for x-coordinates.
After modification in y-coordinates :-

Output :-