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Omit rows containing specific column of NA
...ete.cases function and put it into a function thusly:
DF <- data.frame(m>x m> = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# m>x m> y z
# 1...
Finding duplicates in O(n) time and O(1) space
...
end if
end for
The first loop permutes the array so that if element m>x m> is present at least once, then one of those entries will be at position A[m>x m>].
Note that it may not look O(n) at first blush, but it is - although it has a nested loop, it still runs in O(N) time. A swap only occurs if the...
Adding an arbitrary line to a matplotlib plot in ipython notebook
...rough the ipython notebook. I'm trying to add some annotation lines to an em>x m>isting graph and I can't figure out how to render the lines on a graph. So, for em>x m>ample, if I plot the following:
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Can pandas automatically recognize dates?
...ively surprised by the fact that while reading data from a data file (for em>x m>ample) pandas is able to recognize types of values:
...
Size of Matrim>x m> OpenCV
...m new to OpenCV. Could you please tell me how to obtain the size of a matrim>x m> in OpenCV?. I googled and I am still searching, but if any of you know the answer, please help me.
...
Programmatically Determine a Duration of a Locked Workstation?
...
Tested 100% on Windows 7 m>x m>64 and Windows 10 m>x m>64.
– Contango
Jan 5 '17 at 17:15
...
Using numpy to build an array of all combinations of two arrays
...nction to study it's numerical behavior before trying to do anything complem>x m> with it so I'm searching for a efficient way to do this.
...
promise already under evaluation: recursive default argument reference or earlier problems?
...
Formal arguments of the form m>x m>=m>x m> cause this. Eliminating the two instances where they occur we get:
f <- function(m>x m>, T) {
10 * sin(0.3 * m>x m>) * sin(1.3 * m>x m>^2) + 0.001 * m>x m>^3 + 0.2 * m>x m> + 80
}
g <- function(m>x m>, T, f. = f) { ## 1. note f.
em>x m>p(-...
What is the syntam>x m> to insert one list into another list in python?
...
Do you mean append?
>>> m>x m> = [1,2,3]
>>> y = [4,5,6]
>>> m>x m>.append(y)
>>> m>x m>
[1, 2, 3, [4, 5, 6]]
Or merge?
>>> m>x m> = [1,2,3]
>>> y = [4,5,6]
>>> m>x m> + y
[1, 2, 3, 4, 5, 6]
>>> m>x m>.em>x m>tend(y)
&...
R data formats: RData, Rda, Rds etc
...you do with RData.
Rds stores a single R object. Yet, beyond that simple em>x m>planation, there are several differences from a "standard" storage. Probably this R-manual Link to readRDS() function clarifies such distinctions sufficiently.
So, answering your questions:
The difference is not about the...