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Should I use a data.frame or a matrix?
....frames offering more flexibility over column types. data.frame(a = rnorm(1e6), b = sample(letters, 1e6, TRUE)) will be much smaller (6x by my quick calculation) in memory than the matrix version because of type coercion.
– MichaelChirico
Dec 13 '17 at 11:12
...
Find the max of two or more columns with pandas
... answered Jan 22 '19 at 0:25
cs95cs95
231k6060 gold badges391391 silver badges456456 bronze badges
...
Remove grid, background color, and top and right borders from ggplot2
...el.
ggplot(df, aes(x = a, y = b)) + geom_point() +
xlim(0,22) + ylim(.95, 2.1) +
scale_x_continuous(expand = c(0,0), limits = c(0,22)) +
scale_y_continuous(expand = c(0,0), limits = c(.95, 2.2)) +
theme_bw() +
opts(axis.line = theme_segment(colour = "black"),
panel.grid.m...
How to Query an NTP Server using C#?
... string NtpServer = "pool.ntp.org";
const int DaysTo1900 = 1900 * 365 + 95; // 95 = offset for leap-years etc.
const long TicksPerSecond = 10000000L;
const long TicksPerDay = 24 * 60 * 60 * TicksPerSecond;
const long TicksTo1900 = DaysTo1900 * TicksPerDay;
var ntpData = new byte[48];
n...
Is there an equivalent of 'which' on the Windows command line?
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@Michael, if you're still using DOS or Win95, finding executables on the path are the least of your problems :-)
– paxdiablo
Apr 9 '09 at 5:41
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Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...ype
// ...
return chunk, nil
}
type bigStruct struct {
lots [1e6]float64
}
func myFunction3() (bigStruct, error) {
var chunk bigStruct
// ...
return chunk, nil
}
I modified myFunction2 to return the struct rather than the address of the struct. Compare the assembly outpu...
Matplotlib - global legend and title aside subplots
...x3.set_title("ax3")
fig.tight_layout()
# shift subplots down:
st.set_y(0.95)
fig.subplots_adjust(top=0.85)
fig.savefig("test.png")
gives:
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How do I output coloured text to a Linux terminal?
...HT_YELLOW = 93, FG_LIGHT_BLUE = 94, FG_LIGHT_MAGENTA = 95, FG_LIGHT_CYAN = 96, FG_WHITE = 97, BG_RED = 41, BG_GREEN = 42, BG_BLUE = 44, BG_DEFAULT = 49`
– Phantrast
Apr 21 '1...
Pandas every nth row
... answered Jan 25 '19 at 4:22
cs95cs95
231k6060 gold badges391391 silver badges456456 bronze badges
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Daylight saving time and time zone best practices [closed]
... community wiki
6 revs, 5 users 92%leonbloy
1
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