IJulia is a Julia-language backend combined with the Jupyter interactive environment (also used by IPython). This combination allows to interact with the Julia language using Jupyter/IPython's powerful notebook, which combines code, formatted text, math, and multimedia in a single document.
Questions tagged [ijulia-notebook]
198 questions
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1 answer
Trying to add IJulia via the REPL: Unsatisfiable requirements detected for package
I keep trying to add IJulia in the REPL, and I keep getting this error message:
I tried installing JSON directly, but the REPL would say "The following packages names could not be resolved".
If it helps, I'm running a Windows 10 laptop with julia…
Thomas Davis
- 119
- 4
1
vote
2 answers
Compare 2 dataframe cell by cell using Julia
Using Julia, is there a way to compare 2 DataFrames cell by cell and output difference
E.g.:
expected result would produce dataframe with True/False
Thanks in advance for help
NorthPole
- 27
- 7
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0 answers
How to reinitialize a notebook from the shell?
Following previous discussions from 2018, I managed to run the latest version of Julia inside Google Colab (see here). However, there is a small quirk in the setup: after installing Julia, a new notebook has to be initialized before Colab will…
Paul Eugenio
- 143
- 7
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0 answers
Jupyter Notebook: Typing characters `.0' causes cell to freeze
I am using Julia in a Jupyter notebook in a Chrome browser on Windows 10. Whenever I type a dot followed by the number 0, my cell freezes. So for example I try to give a parameter
x ~ Bernoulli(.01)
Everything is fine till I get to Bernoulli(.
But…
Manoj
- 111
- 2
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1 answer
Installing IJulia
When I try to install IJulia from Julia terminal using the following commands:
using Pkg
Pkg.add("IJulia")
I get the following error:
SystemError: opening file "C:\\Users\\lenovo\\.julia\\registries\\General\\Registry.toml": No such file or…
user12563743
1
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1 answer
How change the default IOContext in IJulia notebook
In a IJulia notebook, I have a cell that load an image from my filesystem then split it into few other images but when they are displayed, they are too small.
using Images
using FileIO
path = "samples/201478670932639746-3.png"
img =…
aret
- 126
- 2
- 6
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1 answer
How can I read text file with converting in Julia?
I try to read a text file in julia but I cannot give any type while reading it gives an error;
data = readdlm("data.txt",'\t', Float64)
at row 1, column 1 : ErrorException("file entry \" 0.00632 18.00 2.310 0 0.5380 6.5750 65.20 4.0900 1…
user3086855
- 21
- 7
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0 answers
Julia - Collection of expressions with @expression must be linear
I'm working on least squares problem and trying to fit given n points to 2 curves, with using JuMP and Gurobi.
This Code works for creating one curve
using JuMP, Gurobi
m = Model(solver=GurobiSolver(OutputFlag=0))
@variable( m, x[1:size(A,2)]…
Emre Akcan
- 982
- 10
- 27
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1 answer
How I translate Python code into Julia code
I'm new in Julia and want this Python code translated in Julia.
def calcMarkov(preseq,propability,ordnung):
betrachtungen = 0
for pos in range(1,len(seq)):
current = seq[pos]
fromNode = seq[pos-ordnung:pos]
if…
B.T
- 57
- 5
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1 answer
How to import a integer tif file in Julia
I have a tif image in which its pixel are integers. I want to import it to Julia and process it further.
I used in IJulia:
using FileIO
using Images
using ImageView
path_seed = joinpath(@__DIR__,"seed.tif")
seed = load(path_seed);
When I enter seed…
MOON
- 2,516
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- 31
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1 answer
IJulia using Old Julia Installation
I just upgraded from Julia 1.1.1 to 1.2.0*. Part of my workflow involves IJulia notebooks. Currently, anytime I try to launch and IJulia notebook, it launches a 1.1.1 kernel with no option for a 1.2.0 kernel, even if I launch the notebook from…
QtizedQ
- 311
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1 answer
UndefVarError: Normal not defined
At the moment of running the model the "Normal" says that it is not defined. However, the idea is that it is a function that indicates random numbers of normal distribution with specific mean and variance.
The original code was made in Julia V0.5.2…
Andrés Vaca
- 33
- 5
1
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1 answer
Julia: How to set the number of DataFrame rows printed in IJulia/Jupyter?
using DataFrames
DataFrame(a = 1:100)
Prints about 30 rows in IJulia/Jupyter by default.
How can I set the number of rows to print in IJulia/Jupyter?
xiaodai
- 14,889
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- 140
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1 answer
No method matching ^
I created a UnitRange in Julia and trying to create a plot of x with respect to x and x ^ 2. I have written the following code.
x = [-10:10]
p1 = plot(x, x)
p2 = plot(x, x.^2)
I am getting the following error:
MethodError: no method matching…
Srinjoy Saha
- 11
- 1
1
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2 answers
How do I use my own modules in a JuliaBox notebook?
I've recently started using JuliaBox for programming in Julia, and I want to use my own modules that I've previously written using the Juno-Atom IDE. I've uploaded the relevant modules to JuliaBox, but I am unable to call them from a JuliaBox…
Mark Birtwistle
- 362
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- 10