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Generate colors between red and green for a power meter?
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203
This should work - just linearly scale the red and green values. Assuming your max red/green/blu...
How to get row from R data.frame
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130
x[r,]
where r is the row you're interested in. Try this, for example:
#Add your data
x <...
Set Colorbar Range in matplotlib
...p.arange(0, 10, .1)
X, Y = np.meshgrid(x,y)
data = 2*( np.sin(X) + np.sin(3*Y) )
def do_plot(n, f, title):
#plt.clf()
plt.subplot(1, 3, n)
plt.pcolor(X, Y, f(data), cmap=cm, vmin=-4, vmax=4)
plt.title(title)
plt.colorbar()
plt.figure()
do_plot(1, lambda x:x, "all")
do_plot(2, ...
Number.sign() in javascript
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Ricardo Rocha
5,96355 gold badges4343 silver badges7676 bronze badges
answered Jan 31 '12 at 12:32
kbeckbec
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Count number of matches of a regex in Javascript
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/*
* Example
*/
const count = (str) => {
const re = /[a-z]{3}/g
return ((str || '').match(re) || []).length
}
const str1 = 'abc, def, ghi'
const str2 = 'ABC, DEF, GHI'
console.log(`'${str1}' has ${count(str1)} occurrences of pattern '/[a-z]{3}/g'`)
console.log(`'${str2}' ...
Regular expression to match URLs in Java
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edited Sep 29 '13 at 20:09
Alan Moore
66.6k1111 gold badges8787 silver badges145145 bronze badges
...
How do I empty an array in JavaScript?
... because the length property of an array is a read/write property.
Method 3 (as suggested by Anthony)
A.splice(0,A.length)
Using .splice() will work perfectly, but since the .splice() function will return an array with all the removed items, it will actually return a copy of the original array. ...
Command-line Unix ASCII-based charting / plotting tool
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136
Try gnuplot. It has very powerful graphing possibilities.
It can output to your terminal in th...
What is the GAC in .NET?
... <DIR> GAC
06/17/2009 04:22 PM <DIR> GAC_32
06/17/2009 04:22 PM <DIR> GAC_64
06/17/2009 04:22 PM <DIR> GAC_MSIL
...snip...
0 File(s) 0 bytes
9 Dir(s) 90,538,311,680 bytes free
C:\Win...
How can I remove 3 characters at the end of a string in php?
How can I remove 3 characters at the end of a string in php? "abcabcabc" would become "abcabc"!
3 Answers
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