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Matplotlib scatter plot with different text at each data point
...terating over the values in n.
y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199]
z = [0.15, 0.3, 0.45, 0.6, 0.75]
n = [58, 651, 393, 203, 123]
fig, ax = plt.subplots()
ax.scatter(z, y)
for i, txt in enumerate(n):
ax.annotate(txt, (z[i], y[i]))
There are a lot of formatting options for annot...
Looping in a spiral
...
Here's my solution (in Python):
def spiral(X, Y):
x = y = 0
dx = 0
dy = -1
for i in range(max(X, Y)**2):
if (-X/2 < x <= X/2) and (-Y/2 < y <= Y/2):
print (x, y)
# DO STUFF...
if x == y or (x < 0 and x == -y) or (x &...
How do you make an array of structs in C?
...
107
#include<stdio.h>
#define n 3
struct body
{
double p[3];//position
double v[3];//...
Creating a CSS3 box-shadow on all sides but one
...paddings) and add shadow
#content {
font-size: 1.8em;
box-shadow: 0 0 8px 2px #888; /* line shadow */
}
add shadows to tabs:
#nav li a {
margin-left: 20px;
padding: .7em .5em .5em .5em;
font-size: 1.3em;
color: #FFF;
display: inline-block;
text-transform: uppercas...
Plot a legend outside of the plotting area in base graphics?
...
10 Answers
10
Active
...
For i = 0, why is (i += i++) equal to 0?
...
This:
int i = 0;
i += i++
Can be seen as you doing (the following is a gross oversimplification):
int i = 0;
i = i + i; // i=0 because the ++ is a postfix operator and hasn't been executed
i + 1; // Note that you are discarding the calc...
What is the JavaScript >>> operator and how do you use it?
...doing a bitwise operation with no actual effect, like a rightward-shift of 0 bits >>0, is a quick way to round a number and ensure it is in the 32-bit int range. Additionally, the triple >>> operator, after doing its unsigned operation, converts the results of its calculation to Numbe...
CSS triangle custom border color
...th a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far:
...
Force the origin to start at 0
...
205
xlim and ylim don't cut it here. You need to use expand_limits, scale_x_continuous, and scale_y...
how do I insert a column at a specific column index in pandas?
...org/pandas-docs/stable/generated/pandas.DataFrame.insert.html
using loc = 0 will insert at the beginning
df.insert(loc, column, value)
df = pd.DataFrame({'B': [1, 2, 3], 'C': [4, 5, 6]})
df
Out:
B C
0 1 4
1 2 5
2 3 6
idx = 0
new_col = [7, 8, 9] # can be a list, a Series, an array...