mlib | Multi-Purpose Library
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kandi X-RAY | mlib Summary
This is a collection of bits and pieces crafted over the years. It is released with the hope that other people might find it useful or interesting.
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Trending Discussions on mlib
QUESTION
Sorry if this seems to be a beginner question, but I can't seem to work out the best approach for my C++ library. I have build a static library, which contains driver API handling code. Currently in order to use it in a higher layer of the software (a simple app with GUI), I need to link the library to the project and create a new instance of a class which exists in this library to access all of its public methods. When a new instance of this class is created, all necessary objects required by the code to work are initialized. I would like to skip the instantiation step and enable the potential users to have it working only by including the library in their code. To picture this better, here's a code example:
What I currently have:
...ANSWER
Answered 2021-Jan-22 at 12:56Supposed you have this:
QUESTION
I was given assignment to run some code and show results using the Apache Spark using Python Language, I installed the Apache Spark server using the following steps: https://phoenixnap.com/kb/install-spark-on-windows-10. I tried my code and everything was fine. Now I am assigned another assignment, it needs MLlib linear regression and they provide us with some code that should be running then we will add additional code for it. When I try to run the code I have some errors and warnings, part of them appeared in the previous assignment but it still working. I believe the issue is that there are additiona things related to Mlib Library should be added so the code will run correctly. Anybody has any idea what files should be added to the spark so it runs the code related to MLib? I am using Windows 10, and spark-3.0.1-bin-hadoop2.7
This is my code :
...ANSWER
Answered 2020-Dec-02 at 12:46Try to do pip install numpy (or pip3 install numpy if that fails). The traceback says numpy module is not found.
QUESTION
The main.cpp is like this:
...ANSWER
Answered 2020-Jun-16 at 16:21A texture sampler in a shader has to be set to the index of the texture unit it should read from, not to the texture handle. See OpenGL Wiki: Sampler
Since your active texture unit is unit 0 (glActiveTexture(GL_TEXTURE0);), you have to replace
QUESTION
I have a dataframe and want to prepare dataPoints as input for the mlib library.
My dataframe looks like this:
...ANSWER
Answered 2020-May-17 at 07:33Caused by: java.lang.NumberFormatException: For input string: "kategorieID" because you are invoking toDouble on string kategorieID. Please check below code.
Vectors.parse will only take type of string .
To show you, I have used Vectors.dense. you can modify below code as per your use case.
QUESTION
I was just getting into diffuse lighting, but the object always gives a black output,
The vertex and the fragment normals are defined as:
...ANSWER
Answered 2020-Apr-02 at 07:18If a named buffer object is bound, then the last parameter of glVertexAttribPointer is treated as a byte offset into the buffer object's data store. The offset of the normal vector attribute are 3*4 bytes, thus (const void*)3 has to be (const void*)(3*sizeof(float)):
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6*sizeof(float), (const void*)3);
QUESTION
Problem Statement: Iterate over an array of objects and check if the object exists in an unordered_set.
Goal: I could have thousand of objects in one container to check their existence in millions of objects in another container. I choose unordered_set for its constant finding complexity and vector for iterating. I'm new to this and if you have any alternate approach, I'd really appreciate it.
Issue: unordered_set find isn't working as expected or I got the concept wrong!
Main:
...ANSWER
Answered 2020-Feb-26 at 20:56An unordered_set requires a hashing function and a comparison function. You are using the existing hashing and comparison functions for std::unique_ptr, which is definitely not what you want.
I would not suggest trying to change the behavior of std::unique_ptr because that will lead to confusion in other code that wants normal semantics for pointers. Instead, add normal hashing and comparison functions for Block and pass customized ones to the constructor of the unordered_set.
QUESTION
#load dataset
df = spark.sql("select * from ws_var_dataset2")
def labelData(data):
# label: row[end], features: row[0:end-1]
return data.map(lambda row: LabeledPoint(row[-1], row[:-1]))
training_data, testing_data = labelData(df.rdd).randomSplit([0.8, 0.2], seed=12345)
ANSWER
Answered 2020-Feb-24 at 17:28The cause is mentioned in the error stack trace.
ModuleNotFoundError: No module named 'numpy'
You just need to install numpy
QUESTION
I installed tomcat 8 on my ubuntu 18.04 system. Later I have downloaded geoserver web archive from geoserver page and deployed the war file on /var/lib/tomcat8/webapps. Tomcat is working fine before deploying the war file.[ localhost:8080] is working fine. But the problem I am getting is after deploying the geoserver war in webapps directory tomcat is not loading on browser.
I have started and restarted tomcat server many times using the command sudo service tomcat8 start and sudo service tomca8 restart. But it's not working after deploying war file.
I would like to install geoserver on tomcat server. I would like to load the geoserver web page as localhost:8080/geoserver.
Any help will be appreciated.
After checking the log file I found these error.
...ANSWER
Answered 2019-Dec-18 at 05:47This problem occurred due to some permission issues. sudo chown -R user:user /var/lib/tomcat8.
In order to deploy any web apps on tomcat8 the tomcat itself should be the owner. By changing the directory permission to tomcat itself it worked!.
QUESTION
To train myself with Spark and classical statistical analysis, I'm trying to execute some samples given into books (neutral statistics books : not dedicated to computing or Spark).
The sample in the book offers to calculate the Spearman correlation coefficient of two judges giving a note to ten sportmen :
| Judge 1 | 8.3 | 7.6 | 9.1 | 9.5 | 8.4 | 6.9 | 9.2 | 7.8 | 8.6 | 8.2
| Judge 2 | 7.9 | 7.4 | 9.1 | 9.3 | 8.4 | 7.5 | 9.0 | 7.2 | 8.2 | 8.1
Creating the intermediate matrix of ranks,
| Judge 1 | 5 | 2 | 8 | 10 | 6 | 1 | 9 | 3 | 7 | 4
| Judge 2 | 4 | 2 | 9 | 10 | 7 | 3 | 8 | 1 | 6 | 5
the sample in the book eventually ends to a result of :
r = 0.915
I tried to implement it with Spark that way, according to the API documentation of Correlation :
ANSWER
Answered 2019-Nov-22 at 06:54A part of the solution of the problem is ashaming...
I'd just put the Vectors the wrong side. And this, correct that :
QUESTION
I'm using a lib that uses an interface I pass by to communicate with the calling activity, the problem is once I rotate the device the new instance of the activity wouldn't receive the callback anymore. I was thinking in saving an instance of this lib in a AndroidViewModel, would I get a memory issue doing so because the instance of the lib references my activity?
Causes problem when rotating:
...ANSWER
Answered 2019-Oct-04 at 15:37Would I get a memory issue doing so because the instance of the lib references my activity?
Saving lib reference in ViewModel will cause memory leak for your
scenario.As your lib has reference of Activity, when you rotate your phone that lib will hold a reference of your old activity.
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