[SciPy-User] Plot Baseline Problem

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[SciPy-User] Plot Baseline Problem

Stephen P. Molnar
I have attached code that I wrote to plot Infrared spectra. The x axis of
the plot (attached) runs from 400 to 4000, which is the range of the
infrared portion of the electromagnetic spectrum.

The spectrum of the sample runs from 400 to 2800.

My question is how can I expand the data plot from 2800 to 4000 (the
intensity is 0.0 in that range)?  Of course this is not the case for each
spectrum

The only thing I've found via Google is
https://stackoverflow.com/questions/47190853/extend-baseline-of-stem-plot-
in-matplotlib-to-axis-limits.

I appreciate your assistance.

Thanks in advance.

Stephen P. Molnar, Ph.D. Life is a fuzzy set
www.molecular-modeling.net Stochastic and Multivariate
(614)312-7528 (c)
Skype: smolnar1


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InfraredPlots_44a.py (1007 bytes) Download Attachment
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Re: Plot Baseline Problem

Guillaume Gay

If you append a (4000, 0) entry at the end of your data, your line will be expanded.

Placing this after you read your data should do the trick:

```python

data = np.concatenate((data, [[0, 4000]]))

```


Guillaume

Le 09/10/2018 à 20:40, Stephen P. Molnar a écrit :
I have attached code that I wrote to plot Infrared spectra. The x axis of
the plot (attached) runs from 400 to 4000, which is the range of the
infrared portion of the electromagnetic spectrum.

The spectrum of the sample runs from 400 to 2800.

My question is how can I expand the data plot from 2800 to 4000 (the
intensity is 0.0 in that range)?  Of course this is not the case for each
spectrum

The only thing I've found via Google is
https://stackoverflow.com/questions/47190853/extend-baseline-of-stem-plot-
in-matplotlib-to-axis-limits.

I appreciate your assistance.

Thanks in advance.

Stephen P. Molnar, Ph.D.		Life is a fuzzy set
www.molecular-modeling.net		Stochastic and Multivariate
(614)312-7528 (c)
Skype: smolnar1



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-- 
Guillaume Gay, PhD

Morphgénie Logiciels SAS
http://morphogenie.fr

12 rue Camoin Jeune
13004 Marseille

 +336 51 95 94 00

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Re: Plot Baseline Problem

Stephen P. Molnar

Many thanks for your reply.

 

Appending, not just (4000, 0), but the (last xvalue of the curve 0.0). solved the problem.

 

Stephen P. Molnar, Ph.D.                              Life is a fuzzy set

www.molecular-modeling.net                   Stochastic and Multivariate

(614)312-7528 (c)

Skype: smolnar1

 

From: SciPy-User <scipy-user-bounces+s.molnar=[hidden email]> On Behalf Of Guillaume Gay
Sent: Tuesday, October 9, 2018 3:33 PM
To: [hidden email]
Subject: Re: [SciPy-User] Plot Baseline Problem

 

If you append a (4000, 0) entry at the end of your data, your line will be expanded.

Placing this after you read your data should do the trick:

```python

data = np.concatenate((data, [[0, 4000]]))

```


Guillaume

Le 09/10/2018 à 20:40, Stephen P. Molnar a écrit :

I have attached code that I wrote to plot Infrared spectra. The x axis of
the plot (attached) runs from 400 to 4000, which is the range of the
infrared portion of the electromagnetic spectrum.
 
The spectrum of the sample runs from 400 to 2800.
 
My question is how can I expand the data plot from 2800 to 4000 (the
intensity is 0.0 in that range)?  Of course this is not the case for each
spectrum
 
The only thing I've found via Google is
https://stackoverflow.com/questions/47190853/extend-baseline-of-stem-plot-
in-matplotlib-to-axis-limits.
 
I appreciate your assistance.
 
Thanks in advance.
 
Stephen P. Molnar, Ph.D.        Life is a fuzzy set
www.molecular-modeling.net              Stochastic and Multivariate
(614)312-7528 (c)
Skype: smolnar1
 




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-- 
Guillaume Gay, PhD
 
Morphgénie Logiciels SAS
http://morphogenie.fr
 
12 rue Camoin Jeune
13004 Marseille
 
 +336 51 95 94 00

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[hidden email]
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