Hi all. Suppose I have a vector of strings ie: [12384, TYU123123,
AVC3939, hhr1919, TYU0029]
Is there an efficient method that would allow me to return a vector of the
position of strings that start with TYU? So essentially, I would like to
get back in return [2, 5]. Anyways, any help with be
Hi all,
Suppose I have x = c('a', 't', 'c', 'y', 'g')
and also y = c('a', 'a', 'g', 's')
If I do something like x%in%y, I obtain a vector like this: [TRUE, FALSE,
FALSE, FALSE, TRUE] which I can easily turn into this: [1, 0, 0, 0, 1].
I was wondering is there anyway for me to get a vector back
Hi, suppose I have a vector of values in 'A'. Suppose I use:
scatter.smooth(A) to add in a smooth curve. Is there a way to obtain the
maximum value of the smoothed curve? Anyways, any help will be greatly
appreciated!
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Hi. Sorry if this question might have already been asked... I'm trying to
plot two curves on the same X-Y coordinate. The par(mfrow) command allows me
to plot the two curves on the same window however on different coordinate
systems. Is there a way to force the two curves into the same coordinate
Hi, if I have this string: a.b.c.d and I use this function:
unlist(strsplit(a.b.c.d, \\.)), I get this as my output: a, b, c,
and d. Is there a way to just split on the first period so I obtain only
two pieces like: a and b.c.d? Anyways, thanks in advance!
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Suppose I have the first vector: c(1, 6, 8, 9)
I will like to create a second vector of size 10 composed of 0 and 1's. The
second vector will be composed of four 1's and six 0's. The position of the
1's will be specificed by the first vector. So essentially, I want a second
vector in the form:
Hi all,
As of now, I have a 15x8 matrix (name is asdf). The first seven columns
contain numbers while the last column contains a string. The class of each
column is character. When I use the plot function to display a scatter
plot between any of the two columns, ie. plot(asdf[, 1], asdf[, 2])
Hi all,
Suppose I have a vector like this:
[1] STAT1 STAT1 STAT1 STAT1 GAPDH GAPDH GAPDH ACTB
ACTB
[10] ACTB DDR1 RFC2 HSPA6 PAX8 GUCA1A UBE1L THRA
PTPN21
[19] CCL5 CYP2E1 STAT1 THRA PAX8
I would like to produce a vector such that it has the same length as the one
Hey guys,
I was wondering how to create this sequence: 1, 2, 3, 1, 2, 3, 1, 2, 3, 1,
2, 3... with the '1, 2, 3' repeated over 10 times.
Also, is there a simple method to generate 1, 1, 1, 2, 2, 2, 3, 3, 3?
Anyways, any help with be greatly appreciated!
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Hi all,
Suppose I have some data that I plot using the histogram command - ie.
hist(x)
Is there an option that will allow me to remove the numbers that appear
along the X and Y axis as I'm just interested in the overall distribution of
the data and not the actual values? Anyways, any help is
Hi all,
Does anyone know how to plot overlapping qqnorm plots on the same window?
Suppose I have data in the vector x and y:
qqnorm(x)
lines(qqnorm(y))
I though these two lines will do the job... However, lines doesn't seem to
work. Anyways, thanks in advance!
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Hi. I was wondering how I can write a function that generates the outcome
values for a user specified equation. For example, function(x^2, 4) will
return back 16 and function(x^3 - 10, 2) will give back -2...
I've been playing around with various lines of code but somehow, I just
cannot get R to
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