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LINQ with groupby and count
...g>, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable<T> of whatever items are in your original data set. You just have to call Count() on that Grouping to get the subtotal.
foreach(var line in data.GroupBy(info => info.metric)
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How to read data when some numbers contain commas as thousand separator?
... some of the numerical values are expressed as strings with commas as thousand separator, e.g. "1,513" instead of 1513 . What is the simplest way to read the data into R?
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Windows 7 SDK installation failure
...em to be completely unable to install the Windows 7 SDK onto my machine, and the only solution I've found on the web is to make a swathe of registry changes. I've done this - still no success.
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Where can I learn jQuery? Is it worth it?
... web development on w3schools.com . It's hit or miss, I know, but the PHP and CSS sections specifically have proven very useful for reference.
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What are the differences between local branch, local tracking branch, remote branch and remote track
I just started using Git and I got really confused between different branches. Can anyone help me to figure out what the following branch types are?
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How to solve java.lang.NoClassDefFoundError?
...issing a transitive dependency of a .jar file that you've compiled against and you're trying to use.
For example, if you had a class com.example.Foo, after compiling you would have a class file Foo.class. Say for example your working directory is .../project/. That class file must be placed in .../...
Oracle: how to UPSERT (update or insert into a table?)
...swered Oct 27 '08 at 11:12
Tony AndrewsTony Andrews
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What is the difference between a reference type and value type in c#?
Some guy asked me this question couple of months ago and I couldn't explain it in detail. What is the difference between a reference type and a value type in C#?
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Java associative-array
How can I create and fetch associative arrays in Java like I can in PHP?
15 Answers
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Drop all duplicate rows across multiple columns in Python Pandas
The pandas drop_duplicates function is great for "uniquifying" a dataframe. However, one of the keyword arguments to pass is take_last=True or take_last=False , while I would like to drop all rows which are duplicates across a subset of columns. Is this possible?
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