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I'm trying to understand a code from my teacher and he uses MonthBegin(1) from Pandas to calculate the distance from months on a data frame.
I already tried to read the documentation but its description is too simple and there are no examples :(
The code that I'm trying to understand is:
month_distance = int(((df['ResearchDate'][index + 1] + MonthBegin(1)) - (df['ResearchDate'][index] + MonthBegin(1))).days / 31)
Consider the following code:
import pandas as pd
from pandas.tseries.offsets import MonthBegin
data = pd.date_range(start='1/1/2021', periods=10, freq="8d")
df = pd.DataFrame(data)
df["mb1"] = df[0] + MonthBegin(1)
print(df)
Basically it is being used so your teacher can get the difference in number of months by rounding dates to the next month's beginning.
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I have a variable with a list on it and I need to use its value for my find option. I get an error when I set my id_user to id_u.
Here is the list
id_u = user_key[0]
This is my SELECT and WHERE
find = ("SELECT * FROM hashtags WHERE id_user=id_u")
You have to concatenate SELECT string with variable value.
Try like this:
id_u = user_key[0]
find = ("SELECT * FROM hashtags WHERE id_user=" + id_u)
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608A
608 A
17113 R
16524 DC1
ASM-1780
234604A - Low L2 Cu
19658B-->
234605 - High L2 Cu
17015 Rev A 405734UD0A
43224A (W
23809 REVB
Is there an SQL server query that cleans the column above and removes the excess content on the right such that the data is converted to below:
608
608
17113
16524
ASM-1780
234604
19658
234605
17015
43224
23809
I have tried using STUFF, but it doesn't clean well.
You seem to want everything up to and including the first digit followed by a non-digit.
Well, this returns what you are asking for:
select str, left(str, patindex('%[0-9][^0-9]%', str + ' '))
Here is a db<>fiddle.
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I am having trouble creating a data frame with the following data:
Force (N) microstrain1 microstrain2 microstrain3 microstrain4 microstrain5
24.838 9.689 -20.299 19.785 15.601 -7.681
49.691 22.610 -40.797 41.304 32.200 -15.332
75.309 33.357 -61.678 62.512 48.726 -22.422
97.227 41.944 -80.524 81.011 62.266 -30.228
121.641 52.692 -100.775 100.703 77.248 -36.884
Every time I try to use a delimiter I get the following message:
/Users/macbookpro/PycharmProjects/Projects/Lab_3/Bending.py:5: ParserWarning: Falling back to the 'python' engine because the 'c' engine does not support regex separators (separators > 1 char and different from '\s+' are interpreted as regex); you can avoid this warning by specifying engine='python'.
df1 = pd.read_csv('MEE322-thurs_1040_group1_9.5cm.txt',delimiter=' ')
Did you try the python engine instead of the c engine?:
df1 = pd.read_csv('MEE322-thurs_1040_group1_9.5cm.txt', delimiter=' ', engine='python')
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I'm looking for a Julia function which, when applied to a module name, lists the functions available through the module.
Basically, I don't want to scour through source code and I've noticed that the documentation for many modules usually doesn't have everything.
names works, mostly:
module MyMod
test() = 3
foo() = 4
end
names(MyMod, true)
gives me
4-element Array{Symbol,1}:
:eval
:test
:foo
:MyMod
Just need to strip out the module name and eval
Expanding on the previous answer slightly, the following seems to work:
function module_functions(modname)
list = Symbol[]
for nm in names(modname)
typeof(eval(nm)) == Function && push!(list,nm)
end
return list
end
Example:
using PyPlot
module_functions(PyPlot)
produces the following output in the REPL:
165-element Array{Symbol,1}:
:contourf
:over
:xticks
:ion
:flag
:summer
:stackplot
:tricontourf
:minorticks_on
:gray
:savefig
:errorbar
:box
:figure
:vlines
:subplot_tool
:jet
⋮
:locator_params
:imshow
:pie
:sci
:axhline
:streamplot
:hist2d
:copper
:text3D
:Axes3D
:loglog
:zticks
:hexbin
:pcolor
:semilogy
:thetagrids
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Here is my code:
- (CGFloat)layoutManager:(NSLayoutManager *)layoutManager lineSpacingAfterGlyphAtIndex: (NSUInteger)glyphIndex withProposedLineFragmentRect:(CGRect)rect
{
return 20;
}
def layoutManager(layoutManager, lineSpacingAfterGlyphAtIndex:glyphIndex withProposedLineFragmentRect:rect)
20
end
Start here: http://www.rubymotion.com/developer-center/guides/getting-started/
Should be something like this:
def layoutManager(layoutManager, lineSpacingAfterGlyphAtIndex: nil, withProposedLineFragmentRect: nil)
return 20.0
end
Check the repo for examples.
Also, that method should return a float, not an int.