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Extract a substring according to a pattern
... sub to replace it with a colon first. For example, if the separator were _ then string <- sub("_", ":", string)
c(read.dcf(textConnection(string)))
## [1] "E001" "E002" "E003"
7) separate
7a) Using tidyr::separate we create a data frame with two columns, one for the part before the colon and o...
No Multiline Lambda in Python: Why not?
...ltiline lambdas can't be added in Python because they would clash syntactically with the other syntax constructs in Python. I was thinking about this on the bus today and realized I couldn't think of a single Python construct that multiline lambdas clash with. Given that I know the language pretty...
How to parse float with two decimal places in javascript?
I have the following code. I would like to have it such that if price_result equals an integer, let's say 10, then I would like to add two decimal places. So 10 would be 10.00.
Or if it equals 10.6 would be 10.60. Not sure how to do this.
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MLKitCustomLabeler / MLKitCustomObjectDetector 拓展：用自己的 TFLite 模型 · App Inventor 2 中文网
... MLKitCustomLabeler / MLKitCustomObjectDetector 拓展：用自己的 TFLite 模型
自定义模型拓展（两个）
模型从哪来
MLKitCustomLabeler：自定义图像分类
快速上手
属性
事件与方...
input() error - NameError: name '…' is not defined
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TL;DR
input function in Python 2.7, evaluates whatever your enter, as a Python expression. If you simply want to read strings, then use raw_input function in Python 2.7, which will not evaluate the read strings.
If you are using Python ...
How to convert JSON to XML or XML to JSON?
...t in JSON format. Your answer was probably downvoted because it didn't actually answer the question. The OP wasn't asking if he should do the conversion, but rather if he could do it using tools already at his disposal.
– David Brown
Aug 1 '12 at 3:08
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What is the recommended way to delete a large number of items from DynamoDB?
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What I ideally want to do is call LogTable.DeleteItem(user_id) -
Without supplying the range, and have it delete everything for me.
An understandable request indeed; I can imagine advanced operations like these might get added over...
How to fix Error: laravel.log could not be opened?
...his should be the chosen answer, 100% agree that sysadmins should not just allow access to everything to avoid working out the real issue.
– HyperionX
Feb 8 '18 at 7:24
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Connecting overloaded signals and slots in Qt 5
I'm having trouble getting to grips with the new signal/slot syntax (using pointer to member function) in Qt 5, as described in New Signal Slot Syntax . I tried changing this:
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Distinct not working with LINQ to Objects
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LINQ Distinct is not that smart when it comes to custom objects.
All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields).
One workaround is to implement the IEquatable interface as shown here.
If yo...