Data HDFS Command
HDFS command path
(HadoopRoot)
|- bin
|- sbin
There are 2 commands
bin/hdfs dfsbin/hadoop fs
Basically sam...
Data
Data Data Couchbase spring data
Couchbase and Spring data
Couchbase data is basically json data. Different from MySQL and Mongodb, it's a little bit...
Data Couchbase java
Couchbase client
Couchbase prepares several programming language support.
Java is also supported.
In this entr...
Data Hive Table Join
Hive Table Join
Hive table join is little bit different from MySQL.
If you write same code, it does not work
T...
Data Python Activation function
Activation function
Activation function is for Neural Network.
We will use activation function in output layer.
...
Data Python Numpy2 matrix
Create matrix from array of array
import numpy as np
# 3 x 2 matrix
mat1 = np.array(, ])
print(mat1)
#
# ]
Create...
Data Python Numpy1 array
Contents
Import NumpyCreate 1 dim arrayNumpy array methods
Import Numpy
import numpy as np
After this, you ...