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vokoyo
vokoyo
Last Activity: Apr 4 '19, 01:46 PM
Joined: Apr 20 '18
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  • vokoyo
    started a topic How to correct the NameError: name 'xx' is not defined?
    in Python

    How to correct the NameError: name 'xx' is not defined?






    May I know how to correct the NameError: name 'xx' is not defined ?






    Code:
    import numpy as np
import matplotlib.pyplot as plt
from sklearn import svm, datasets
# import some data to play with
iris = datasets.load_iris()
X = iris.data[:,[2,3]]
y = iris.target

def plotSVC(title):
# create a
    ...
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    • vokoyo
      replied to Why I get the X_train_std is not defined
      in Python




      Look carefully -





      from sklearn.model_s election import train_test_spli t






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        Leave a comment:

      • vokoyo
        started a topic Why I get the X_train_std is not defined
        in Python

        Why I get the X_train_std is not defined

        May I know why I get the error message -

        NameError: name 'X_train_std' is not defined






        Code:
        from sklearn.linear_model import LogisticRegression

lr = LogisticRegression(C=1000.0, random_state=0)
lr.fit(X_train_std, y_train)
 
plot_decision_regions(X_combined_std,
                      y_combined, classifier=lr,
        ...
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        • vokoyo
          started a topic How To Modify Adaline Stochastic Gradient Descent
          in Python

          How To Modify Adaline Stochastic Gradient Descent






          Dear

          May I know how to modify my own Python programming so that I will get the same picture as refer to the attached file - Adaline Stochastic gradient descent

          (I am using the Anaconda Python 3.7)

          Prayerfully

          Tron Orino Yeong
          tcynotebook@yah oo.com
          0916643858








          ...
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          • vokoyo
            replied to How to use CUDA programming to calculate and process the correct number
            in C
            I get some errors for my coding sample as below -



            #include <stdio.h>
            #include <stdlib.h>
            #include <cuda_runtime.h >
            #include <time.h>
            #include <math.h>

            #define DATA_SIZE 1048576
            #define BLOCK_NUM 32
            #define THREAD_NUM 256

            int data[DATA_SIZE];

            bool InitCUDA()
            {
            int count;

            cudaGetDeviceCo unt(&count);...
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            • vokoyo
              replied to How to use CUDA programming to calculate and process the correct number
              in C
              My own coding sample however have some errors -

              #include <stdio.h>
              #include <stdlib.h>
              #include <cuda_runtime.h >
              #include <time.h>
              #include <math.h>

              int main()
              {
              float *a, *b, *c, *d;
              int n = 1000;

              if (!InitCUDA())
              return 0;
              a = (float*)malloc( sizeof(float)* n * n);
              b = (float*)malloc( sizeof(float)* n * n);
              ...
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              • vokoyo
                started a topic How to use CUDA programming to calculate and process the correct number
                in C

                How to use CUDA programming to calculate and process the correct number

                Bandwidth test - test memory bandwidth.

                Especially important for PCIE capability. Different MB has different PCIE capability.

                The CUDA adaptor performance is depend on the capability of PCIE. It could be the performance bottleneck.

                On the following programming drills, the number of clock cycles necessary for computation and utilised memory bandwidth have to be computing.

                (1) parallelization in the...
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