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Python matplotlib multiple bars
...lotlib, when I tried to call the bar function multiple times, they overlap and as seen the below figure the highest value red can be seen only.
How can I plot the multiple bars with dates on the x-axes?
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Matplotlib scatterplot; colour as a function of a third variable
...rt numpy as np
import matplotlib.pyplot as plt
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
# Plot...
plt.scatter(x, y, c=y, s=500)
plt.gray()
plt.show()
Or, if you'd prefer a wider range of colormaps, you can also specify the cmap kwarg to scatter. To use the reverse...
How can I create a correlation matrix in R?
...correlation. So, the number of rows must be the same between your matrix x and matrix y. Ex.:
set.seed(1)
x <- matrix(rnorm(20), nrow=5, ncol=4)
y <- matrix(rnorm(15), nrow=5, ncol=3)
COR <- cor(x,y)
COR
image(x=seq(dim(x)[2]), y=seq(dim(y)[2]), z=COR, xlab="x column", ylab="y column")
text...
How do I concatenate two arrays in C#?
...faster than list when accessing data, because list just wraps array inside and has overhead for calling indexer.
– C0DEF52
May 26 '18 at 22:15
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Constructor overload in TypeScript
...t allows you to declare overloads but you can only have one implementation and that implementation must have a signature that is compatible with all overloads. In your example, this can easily be done with an optional parameter as in,
interface IBox {
x : number;
y : number;
height ...
Convert light frequency to RGB?
...
And the Fourmilab article makes the important point that some colours are not representable in RGB (bright oranges being a good example) because you cannot "make" arbitrary colours of light by adding three primary colours tog...
How do I sort one vector based on values of another
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This is pretty and shows a good understanding of R's built-ins. +1
– Godeke
Oct 15 '09 at 15:21
6
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String Concatenation using '+' operator
Looking at the string class metadata, I only see the operators == and != overloaded. So how is it able to perform concatenation for the ' + ' operator?
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One-line list comprehension: if-else variants
...or x in seq if COND ]
Without a filter you need:
[ EXP for x in seq ]
and in your second example, the expression is a "complex" one, which happens to involve an if-else.
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Associativity of “in” in Python?
I'm making a Python parser, and this is really confusing me:
4 Answers
4
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