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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...1.42 0.63 0.98 1.20 1.42 1.65 1.87
To get specific statistics, just select them,
df.groupby(['A', 'B'])['C'].describe()[['count', 'mean']]
count mean
A B
bar one 1.0 0.400157
three 1.0 2.240893
two 1.0 -0.977278
foo one 2.0 ...
App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
...hen 图像选择器1.AfterPicking() {
图像1.Picture = 图像选择器1.Selection
标签_回答.Text = ""
Doubao1.ChatWithImage("请描述这张图片里有什么", 图像选择器1.Selection)
}
when Doubao1.GotStream(part, finished) {
标签_回答.Text = join(标签_回答.Text, part)
}
...
How should I store GUID in MySQL tables?
...above and when I convert them back using the same methods the guid that is selected is not the one that was inserted. What is transforming the guid? All I've done is copied the code from above.
– vsdev
Dec 17 '15 at 14:53
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UITextField text change event
...ntrol.
In Objective-C:
[textField addTarget:self
action:@selector(textFieldDidChange:)
forControlEvents:UIControlEventEditingChanged];
In Swift:
textField.addTarget(self, action: #selector(textFieldDidChange), for: .editingChanged)
Then in the textFieldDidChange method...
What is the difference between mutex and critical section?
...
The 'fast' Windows equal of critical selection in Linux would be a futex, which stands for fast user space mutex. The difference between a futex and a mutex is that with a futex, the kernel only becomes involved when arbitration is required, so you save the over...
How to set transform origin in SVG
... original code, which I got working in Chrome 65:
//...
this.layerGroups.selectAll('.dot')
.data(data)
.enter()
.append('circle')
.attr('transform-origin', (d,i)=> `${valueScale(d.value) * Math.sin( sliceSize * i)}
${valueScale(d.value) * Math.cos( ...
Maven: The packaging for this project did not assign a file to the build artifact
...ins - install, as pointed with red arrow in below image.
Once I run the selected install under Lifecycle as illustrated above, the issue gone, and my maven install compile build successfully.
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How do I grab an INI value within a shell script?
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This should be the selected answer. It does work with file.properties and is fault tolerant (file with empty line inside). Thanks
– Anthony
Feb 16 '17 at 8:33
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Input with display:block is not a block, why not?
...up with all sorts of retarded hacks like using 99% width to get inputs and selects to match. I really want a way to treat an input like a div and I was hoping I'd just overlooked something.
– SpliFF
Jun 23 '09 at 6:05
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E11000 duplicate key error index in mongodb mongoose
...find the index that you are not using anymore (in OP's case 'email'). Then select Drop Index
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