wavelength | Framework for building Alexa Skills with AWS Lambda | Cloud Functions library
kandi X-RAY | wavelength Summary
kandi X-RAY | wavelength Summary
Wavelength is a framework that simplifies working with the Alexa SDK when using Amazon Lambda services on the back-end. The Alexa Skills Kit is the programming interface to create skills for Amazon Echo devices and other Alexa enabled services. Amazon Lambda is a computing mechanism where you can write a "cloud function" that can be hosted and executed on demand. Instead of running a server 24/7, AWS takes care of making your function available (and scaling to handle request capacity). AWS has a rather generous free-tier so you should be able to host quite a few lambda functions before incurring any charges. For information on how to develop skills using the Alexa Skills Kit, go to: And for information about using AWS Lambda, see: Amazon makes it very straight-forward to trigger your lambda function from the Alexa Skill. The project name of wavelength is because lambda is the symbol for wavelength in physics equations and an echo is the reflection of a sound wave.
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- The Response class .
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wavelength Key Features
wavelength Examples and Code Snippets
Lines of Code : 89License : Strong Copyleft (CC BY-SA 4.0)
Copy.FirstOrDefault() ?? string.Empty
.FirstOrDefault() ?? 0
StarId = null == g.FirstOrDefault() ? 0 : g.FirstOrDefault().StarId,
StarType = null == g.FirstOrDefault() ? string.Empty : g.FirstOthis.move = function(i){
var alpha = 360.0*i/arr.length;
this.height = sin(alpha) * amplitude + (amplitude*2);
}
var wavelength = 0.25;
this.move = function(i){
var alpha = 360.0*i/arr.length;
Community Discussions
Trending Discussions on wavelength
QUESTION
I am writing code to process a list of URL's, however some of the URL's have issues and I need to pass them in my for loop. I've tried this:
...ANSWER
Answered 2022-Mar-27 at 14:26There's no need to compare the result of re.search with True. From documentation you can see that search returns a match object when a match is found:
Scan through string looking for the first location where the regular expression pattern produces a match, and return a corresponding match object. Return
Noneif no position in the string matches the pattern; note that this is different from finding a zero-length match at some point in the string.
So, when comparing a match object with True the return is False and your else condition is executed.
QUESTION
Recently I'm struggling to read an csv file with pandas pd.read_csv. The problem is, that in the csv file a comma is used both as decimal point and as separator for columns. The csv looks as follows:
...ANSWER
Answered 2022-Mar-25 at 00:07I'm not sure that this is possible. It almost is, as you can see by the following example:
QUESTION
I have a simple csv file like this:
wavelength exposure 550 2 560 3 570 10 580 2 590 5 600 6I am trying to do a simple calculation between each item in the wavelength column and then eventually time.sleep for the related exposure time. The if loop for idx==0 seems to work well. But I cannot figure out how to better write the idx > 0: part. The calculation doesn't work well for the second items in the column. I can't figure out how to update the starting wavelength and subract it from the next item in the list. I want it to do 550-631.26 update currentwave to 550 then do 560-550 but in a loop so it automatically does 570-560 and so on
...ANSWER
Answered 2022-Mar-10 at 05:01You place a list object into the variable currentwave in the last line of your code currentwave = [idx-1] which produces an error the next time you subtract the variable with a number. Quick fix is you replace that line with currentwave = wl.
Actually, after looking at your code, you don't really need to break the loop down into idx==0 and idx >0, instead,
QUESTION
I have a dataset called graphData with three values, wavelength, magnitude, and name.
ANSWER
Answered 2022-Mar-08 at 19:48Since the output of d3.group is a javascript Map, it needs to be converted into an array of [key,value] tuples in order to be iterable:
QUESTION
I'm working on an application where datasets have programmatically generated names and are frequently created and destroyed by users. I want to graph these datasets within the application using D3.js.
My datasets are stored like this:
Wavelength Transducer Output 1 Transducer Output 2 Transducer Output 3 1 19 21 23 3 23 20 21 5 33 23 19 7 33 24 45 etc.. etc.. etc.. etc..Where wavelength should be mapped along the x axis, and magnitude mapped along the y axis, with an individual line for each set of magnitudes.
I'm struggling to get my head around how one should pass such data into D3.js. Each tutorial I read uses different data formats and different code. I have read the documentation, but it hasn't helped me much in learning how to format my data for D3 either.
What's the correct way to map these datasets onto a graph from within a script? At the moment I'm trying to use d3.csvParse(data), but am unsure where to go from there. I suspect I may be formatting my data awkwardly but am not sure.
ANSWER
Answered 2022-Mar-08 at 16:45Writing up a quick answer to this just incase anyone else gets stuck where I did. Essentially I completely misunderstood how you're supposed to present data to in d3.
Here's a useful guide to understanding d3 data handling
Here's a useful guide on how to use that data once you have it structured correctly
Once I realised that I needed to create an array which represented every point I want drawn things got a lot easier. I created an object with three properties that described a single data point.
Each object has a wavelength, magnitude, and a name.
wavelength is the datapoint's position on the x axis, magnitude is its position on the y axis, and name allows me to differentiate between the different datasets.
QUESTION
I am trying to convert a calculation in matlab to python. This is code in matlab:
...ANSWER
Answered 2022-Mar-08 at 02:03Often when translating MATLAB it's important to get shapes/sizes correct. But when I run your code in Octave I see all variables are (1,1), "scalar". So dimensions shouldn't be an issue.
Let's check function values:
QUESTION
I am trying to plot a set of data with HVPlots that is basically 2 distinct sets of data, which have overlapping but not similar X-axis values. For example, one set of data might have x values that the other set does not. My problem is that one data set will generate a giant line from the lowest available data value to the largest available data value, which is not desirable.
Is there a way to prevent this giant line from forming? The data comes from a Pandas data frame. Thank you in advance.
Here is the CSV data, sorry for large text blob.
...ANSWER
Answered 2022-Jan-03 at 19:50That line coming across is joining two different charts. The data contains 2 "Sensors" which have (technically) overlapping x axis values.
what you need to do is filter out the data by Sensor, and plot them individually.
data[data.Sensor.eq('Hyperion')] this will give you data filtered only for the "Hyperion" sensor.
you can do the same for all unique sensors, and then plot them as individual trances on the same x and y axis to get a multi lined chart.
QUESTION
I am trying to interpolate data from a csv file. The first 2 columns are the same size. I had success with same data in txt files before, this is my first attempt with a csv file. Any help would be appreciated. Sample csv file
...ANSWER
Answered 2022-Jan-01 at 20:57You're close. You need to create the reader object when you first open the file, then use the reader to iterate your rows:
QUESTION
I need to disable the bind_return_key parameter to false after a question is answered incorrectly. The parameter is binded to the submit button under the key 'b1'. I used the .update() method and it worked around a week ago. It not longer works and I receive this error: "TypeError: update() got an unexpected keyword argument 'bind_return_key'"
Is there a fix to this?
Things I've tried:
- changed what is being updated from key 'b1' to 'Submit'
- opened a new project file to install the newest version which I think is 4.55.1
ANSWER
Answered 2021-Nov-25 at 20:26This was an issue 2548 in PySimpleGUI.
Since version 4.16.0 there is also a shortcut to unbind a key from an element:
I've also added an
Element.unbindmethod to match theElement.bindmethod. This will allow you to unbind tkinter events from an element without needing to access the element's Widget member variable.
Thus you can use following to unbind tkinter's return key-press events ('') from your element, which is not the button (with key b1) but the input (text-field with key -INPUT-):
QUESTION
I have the results of a numerical simulation that consist of hundreds of directories; each directory contains millions of text files.
I need to substitute a the string "wavelength;" with "wavelength_bc;" so I have tried both the following:
ANSWER
Answered 2021-Oct-16 at 14:11xargs -P should be safe to use, however you will need to use -print0 option of find and piping to xargs -0 to address filenames with spaces or wildcards:
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