jl | Small , embeddable LISP-like language
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Small, embeddable LISP-like language.
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QUESTION
These codes convert uppercase letters ("letters only") to lowercase letters and lowercase letters to uppercase. My question is that I want to print them as well and keep them unchanged, if any (non-verbal symbols and actors). With the cmp and ... commands that you see in the program
...ANSWER
Answered 2021-Jun-13 at 16:03You need to restrict the ranges for the uppercase and lowercase characters by specifying a lower limit and a higher limit, not just the one value (96) that your current code uses.
Uppercase characters [A,Z] are in [65,90]
Lowercase characters [a,z] are in [97,122]
The nice thing of course is that you don't actually need to write these numbers in your code. You can just write the relevant characters and the assembler will substitute them for you:
QUESTION
I am trying to create a documentation for a Julia module using Documenter.jl
. Now I imported a module which documenter cannot find for some reason. More explicitly: I imported SparseArrays.jl
via import SparseArrays
and am referencing SparseArrays.AbstractSparseArray
in a docstring. (I also have SparseArrays.jl
installed.) Yet I get ERROR: LoadError: UndefVarError: SparseArrays not defined
. What's the reason and how can I fix this?
EDIT: This is what the relevant parts of the code look like:
...ANSWER
Answered 2021-Jun-06 at 16:56Most likely you have imported it in a separate code block. See here for an explanation of the issue.
Also you might need to add import SparseArrays
in setup code as explained here. This is needed if e.g. you have doctests inside docstrings.
Here is an example how it is done in DataFrames.jl (in general DataFrames.jl has doctests enabled both in docstrings and in documentation code so you can have a look at the whole setup we have there).
If this is not the reason then could you please share your code in the question so that it can be inspected?
QUESTION
In REPL mode, Julia lets you type a semicolon and run shell commands, i.e.
...ANSWER
Answered 2021-Jun-12 at 03:07As you mentioned, the default way to do is via the run
command. If you have not already, check out the docs on this https://docs.julialang.org/en/v1/manual/running-external-programs/#Running-External-Programs which go into some of the caveats.
I am not sure I follow what you are getting at with RCall
but it may perhaps be worth opening a separate question for that.
QUESTION
I'm trying to learn Recurrent Neural Networks (RNN) with Flux.jl in Julia by following along some tutorials, like Char RNN from the FluxML/model-zoo.
I managed to build and train a model containing some RNN cells, but am failing to evaluate the model after training.
Can someone point out what I'm missing for this code to evaluate a simple (untrained) RNN?
...ANSWER
Answered 2021-Jun-11 at 12:27Turns out it's just a problem with the input type.
Doing something like this will work:
QUESTION
I am running a function from an external library here: https://github.com/baggepinnen/SingularSpectrumAnalysis.jl
When running, I get this output printed in the console:
...ANSWER
Answered 2021-Jun-10 at 18:11It is a part of a standard library, so it can be found in documentation: https://docs.julialang.org/en/v1/stdlib/LinearAlgebra/#LinearAlgebra.svd
Output is only visual representation of the data, so it can't be used to access data programmatically. You should use docs or introspection functions like fieldnames
to understand how to work with the object. In this case, you should use fields U
, S
and Vt
of an SVD
object.
QUESTION
I would like to (i) compute and (ii) plot the central credible interval and the highest posterior density intervals for a distribution in the Distributions.jl library. Ideally, one can write their own function to compute CI and HPD and then use Plots.jl to plot them. However, I'm finding the implementation quite tricky (disclaimer: I'm new to Julia). Any suggestions about libraries/gists/repo to check out that make the computing and plotting them easier?
Context
...ANSWER
Answered 2021-Jun-05 at 23:27Thanks for updating the question; it brings a new perspective.
The gist is kind of correct; only it uses an earlier version of Julia.
Hence linspace
should be replaced by LinRange
. Instead of using PyPlot
use using Plots
.
I would change the plotting part to the following:
QUESTION
I'm trying to create a documentation for a Julia package using Documenter.jl
. (I'm fairly new to Julia in general though.) Now I was wondering how I can get all functions with a docstring appear in the documentation? I know I can add a function f
via
ANSWER
Answered 2021-Jun-04 at 12:00Ok for anyone interested I just found out how to do it:
QUESTION
According to this site, we can install Julia package by putting the following command on the shell:
...ANSWER
Answered 2021-Jun-03 at 08:39Use REPL, enter package mode by typing ]
(the prompt (@v1.6) pkg>
shows you already did that), then just type :
QUESTION
Hello I am making radio controler for tank but I have problem with joystick code. Every time when I had same problem with ('JR' was not declared in this scope) in Serial.print('JR'); line. I don't have a lot of experince with arduino so it can be easy to solve problem. Can somebody help me? ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
...ANSWER
Answered 2021-Jun-01 at 00:49Your problem is that you are declaring JR as a local variable in void setup. If you want to use in void loop() you have to declare it as a global variable. You will have the same issue with the other ones, so you have to do the same with JR, JL, K10, etc...
You can try this code:
QUESTION
I would like to convert a SymPy expression in order to use as an objetive function in JuMP. Suppose my variable involves two variables
...ANSWER
Answered 2021-May-31 at 20:11My answer from Discourse:
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