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Changing the “tick frequency” on x or y axis in matplotlib?
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How to succinctly write a formula with many variables from a data frame?
...in a formula to mean all the variables, it is the . identifier.
y <- c(1,4,6)
d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2))
mod <- lm(y ~ ., data = d)
You can also do things like this, to use all variables but one (in this case x3 is excluded):
mod <- lm(y ~ ...
SQL MAX of multiple columns?
How do you return 1 value per row of the max of several columns:
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Underscore: sortBy() based on multiple attributes
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How many files can I put in a directory?
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pyplot scatter plot marker size
...d the output they produce.
# doubling the width of markers
x = [0,2,4,6,8,10]
y = [0]*len(x)
s = [20*4**n for n in range(len(x))]
plt.scatter(x,y,s=s)
plt.show()
gives
Notice how the size increases very quickly. If instead we have
# doubling the area of markers
x = [0,2,4,6,8,10]
y = [0]*len(...
Generate colors between red and green for a power meter?
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Can a class member function template be virtual?
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Can I get JSON to load into an OrderedDict?
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Yes, you can. By specifying the object_pairs_hook argument to JSONDecoder. In fact, this is t...
How to round up a number in Javascript?
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/**
* @param num The number to round
* @param precision The number of decimal places to prese...