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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...k of the indices:
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
numpy.random.shuffle(x)
training, test = x[:80,:], x[80:,:]
or
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
indices = numpy.random.permutation(x.shape[0])
training_idx, test_idx = indices[:80], ind...
Android: Specify two different images for togglebutton using XML
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edited Nov 13 '12 at 0:01
user901309
answered Oct 7 '09 at 18:37
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Why does 1==1==1 return true, “1”==“1”==“1” return true, and “a...
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edited May 9 '14 at 10:53
answered May 9 '14 at 9:54
J...
Bash foreach loop
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answered Nov 12 '10 at 8:35
Greg HewgillGreg Hewgill
783k167167 gold badges10841084 silver badges12221222 bronze badges
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How to exclude this / current / dot folder from find “type d”
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edited Mar 11 '16 at 21:09
answered Jun 30 '13 at 10:32
C...
.NET List Concat vs AddRange
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answered Sep 19 '08 at 7:17
Greg BeechGreg Beech
119k3939 gold badges198198 silver badges238238 bronze badges
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Chrome extension: force popup.html to close
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205
Within a popup javascript:
window.close();
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Convert int to ASCII and back in Python
..., node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When a user goes to that URL, I need to reverse the process (obviously).
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Playing .mp3 and .wav in Java?
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120
Java FX has Media and MediaPlayer classes which will play mp3 files.
Example code:
String bip...
FloatingActionButton 扩展：悬浮操作按钮扩展，可自定义颜色、大小、位置...
...om.kenmor.floatactionbtn
版本
1.1 (较新)
1.0
文件大小
21.8 KB
13.6 KB (更轻量)
位置设置
自定义X/Y坐标
预定义四个位置
圆角控制
✅ 支持
❌ 不支持
...