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Add regression line equation and R^2 on graph
I wonder how to add regression line equation and R^2 on the ggplot . My code is:
9 Answers
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A fast method to round a double to a 32-bit int explained
When reading Lua's source code, I noticed that Lua uses a macro to round a double to a 32-bit int . I extracted the macro , and it looks like this:
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How to copy from CSV file to PostgreSQL table with headers in CSV file?
I want to copy a CSV file to a Postgres table. There are about 100 columns in this table, so I do not want to rewrite them if I don't have to.
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What does “=>” mean in PHP?
What does the => operator mean in the following code?
6 Answers
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Remove items from one list in another
I'm trying to figure out how to traverse a generic list of items that I want to remove from another list of items.
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How to install pip for Python 3 on Mac OS X?
OS X (Mavericks) has Python 2.7 stock installed. But I do all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is:
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Object comparison in JavaScript [duplicate]
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How to use if statements in underscore.js templates?
I'm using the underscore.js templating function and have done a template like this:
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What is the difference between “git branch” and “git checkout -b”?
... does the same thing.
How do these two commands differ, if they differ at all?
7 Answers
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Algorithm to get the excel-like column name of a number
I'm working on a script that generate some Excel documents and I need to convert a number into its column name equivalent. For example:
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