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lineplot in plt

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Hungry Herring answered on October 31, 2021 Popularity 10/10 Helpfulness 1/10

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lineplot in plt

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-1

CHAPTER

                                                                                                           FOUR

                                                          FREQUENTLY ASKED QUESTIONS

A list of common questions.

4.1 How can I fit multi-dimensional data?

The fitting routines accept data arrays that are 1 dimensional and double precision. So you need to convert the data
and model (or the value returned by the objective function) to be one dimensional. A simple way to do this is to use
numpy’s numpy.ndarray.flatten(), for example:
def residual(params, x, data=None):
    ....
    resid = calculate_multidim_residual()
    return resid.flatten()

4.2 How can I fit multiple data sets?

As above, the fitting routines accept data arrays that are 1 dimensional and double precision. So you need to convert
the sets of data and models (or the value returned by the objective function) to be one dimensional. A simple way to
do this is to use numpy’s numpy.concatenate(). As an example, here is a residual function to simultaneously
fit two lines to two different arrays. As a bonus, the two lines share the ‘offset’ parameter:
      def fit_function(params, x=None, dat1=None, dat2=None): 
      		model1 = params[’offset’].value + x * params[’slope1’].value 
        	model2 = params[’offset’].value + x * params[’slope2’].value
           	resid1 = dat1 - model1 
            resid2 = dat2 - model2 
            return numpy.concatenate((resid1, resid2))

4.3 How can I fit complex data?

As with working with multidimensional data, you need to convert your data and model (or the value returned by the
objective function) to be double precision floating point numbers. One way to do this would be to use a function like
this:
def realimag(array):
    return np.array([(x.real, x.imag) for x in array]).flatten()

to convert the complex array into an array of alternating real and imaginary values. You can then use this function on
the result returned by your objective function:

                                                                                                                   13

Popularity 10/10 Helpfulness 1/10 Language python

Source: www.readkong.com

Tags: line-plot plt python

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Contributed on Oct 31 2021

Hungry Herring

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import matplotlib.pyplot as plt
# ax deals with data, fig contains whole picture
# Allows customization of small multiples
fig, ax = plt.subplots(2,1,sharey=True) # 2 rows, 1 columns and share Y axis range
ax[0,0].plot(df["X"], df["Y1"], marker = "o",linestyle="--", color="r")
ax[1,0].plot(df["X"], df["Y2"], marker = "v",linestyle="None", color="g")
ax.set_xlabel("X Axis")
ax.set_ylabel("Y Axis")
ax.set_title("Plot Title")
plt.show()

Popularity 9/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: line-plot line

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Contributed on Nov 09 2023

Innocent Iguana

0 Answers Avg Quality 2/10

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