xone | Frequently used functions for python time series analysis | Time Series Database library
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Frequently used functions for python time series analysis
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- Decorate a function with caching .
- Plot a Pandas DataFrame .
- Plot timeseries .
- Align data to the same column .
- Reads data from a zip file .
- Get a page source .
- Saturate all possible combinations of kwargs .
- Create pandas dataframe
- Add lines to axes .
- Run a function on the given keys .
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QUESTION
I am trying to extract data from Bloomberg. I need data for multiple fields with diferent currencies. I can't get what I need from this answer https://github.com/alpha-xone/xbbg
Can anyone help, please?. for a "specifc time" and on a "period of time"?
I tried the following code but it didn't work.
...ANSWER
Answered 2021-Nov-29 at 21:10It is best to group similar securities together when pulling in historic data. In the OP's question, 'TPXDDVD Index' is a calculated total return index. Hence it will not have the same fields available as the other two, which as their tickers suggest are quoted funds.
Taking just the two quoted funds, SCTOGAA LN Equity
and VAPEJSI ID Equity
, we can determine the default currency in which each field is denominated. This being Bloomberg, naming conventions are organic and may not be obvious! The two value fields are FUND_NET_ASSET_VAL
and FUND_TOTAL_ASSETS
, and the default currency might be different for each.
We can use the bdp()
function to pull back these currencies as follows (NB tickers are in a python list:
QUESTION
I need to make plots (y = 'total_sales_sum'
, x = 'year_of_release'
) for each gaming platform. For this I had used pivot table, hence got multiindex dataframe.
ANSWER
Answered 2021-Sep-06 at 19:14You can loop over pandas.MultiIndex
with:
QUESTION
I have to change my question subject to reflect my real issue.
If I try the below example with 3 stocks, the code is working fine. However, if I add more tickers, I am getting 'Key error'. Please help.
Code:
...ANSWER
Answered 2021-May-29 at 08:20NXTG stock doesn't have neither "industry", nor "beta" fields. Dictionary method get()
could be used to avoid KeyError:
QUESTION
I want to match all strings that have only one single character (including having with +
or -
) to turn into X
but I get this output instead whenever I run it:
ANSWER
Answered 2021-Feb-19 at 12:11Using a GNU sed
, you can use
QUESTION
So, i don't know if the title makes it easy to understand, but basically i want to change this to the minimum of code possible:
...ANSWER
Answered 2021-Feb-15 at 20:09We can specify it with across
. Note that mutate
replaces the column value with the sum
of that column.
QUESTION
I am working on a web scrapping project in which I want to scrap all the elements inside a particular table. this is the website I want to scrap the data from.
Here is my code so far
...ANSWER
Answered 2020-Apr-28 at 07:03This is because the structure of HTML is not as you are expecting in the code. Due to this, many of the calls are going to catch block
print(tr) in for loop and you will get to know the structure of each row. Then you can modify your code according to the requirement
QUESTION
For some reason when I try to create a rectangular treemap in d3.js I can't get a desired result with correctly shaped rectangular treemap without any missing data and empty space.
I noticed that in the first case, when I remove .sort()
from my d3.hiearchy()
I get almost a desired result, but I can't remove an empty space created on the top left corner as shown here:
ANSWER
Answered 2020-Apr-14 at 12:04As per Andrew Reid's recommendation to use treemap.selectAll(null)
instead of treemap.selectAll('g')
and using .sort(function(a, b) { return b.height - a.height || b.value - a.value; });
the treemap is correctly shaped now.
QUESTION
I have a problem with the fact that when I write "n "at the time of starting the" #Restart "part and should ideally write" Goodbye " and close after 10 seconds, but it starts the else process: which is at the very end, and restarts everything. but I enter everything correctly and the error I called " Input Error!"it shouldn't be, just help who can, I don't know why this is happening .-.
------------------------------------------------------------------start------------------------------------------------------------
1-Russian, 2-English, 3-UA? (Without spaces):2
The discriminant is derived from the root?(y/n):y
Enter a number a:1
Enter a number b:2
Enter a number c:3
Discriminant = -8.0
No roots!
If there are many numbers after the point then the answer is either a fraction or the answer is not correct.
Do you want to continue?(y/n):n
Goodbye!
Input Error!
Restarting...
1-Russian, 2-English, 3-UA? (Without spaces):
----------------------------------------------------------------end------------------------------------------------------------
Start of code:
...ANSWER
Answered 2020-Mar-15 at 08:25This code has a lot of repetition. Handling all the possible combinations of user input cases will be a lot easier if you avoid the double while loop, and use a function instead. Here is my go at restructuring it.
QUESTION
I have a table called games
that has a column called platforms
, which contains a list of platform abbreviations. This is a list of all the platforms that specific game came out on. Here's an example of one of the cells in platforms
:
AMI,GG,SNES,CPC,AST,C64,SPEC,MAC,PS2,NES,3DO,ARC,XBGS,PS3N,PC,IPHN,DSI,HALC,PSPN,ANDR,
The user can choose any number of platforms they wish to view games for. For example, they may choose to see games for the following platforms:
SNES, MAC, PC
So I need a way to programmatically construct a Room query that would find games in the selected platforms. I need to somehow generate an arbitrary number of LIKE clauses and inject them into the query. I tried the following, but it returned no results:
...ANSWER
Answered 2020-Mar-06 at 09:09You can use @RawQuery and build SimpleSQLiteQuery dynamically:
In dao:
QUESTION
Traceback (most recent call last): File "DS", line 22, in print ( " x1 = " + str(xone)) NameError: name 'xone' is not defined
a,b,c и Da = float( input( "Введите чиcло a: "))
b = float( input( "Введите чиcло b: "))
c = float( input( "Введите чиcло c: "))
Finding DD = (b * b) - 4 * a * c
Finding x1, x2 and print thisif D > 0:
xone = ( -b + (D / D)) / 2 * a
xtwo = ( -b - (D / D)) / 2 * a
print ( " D = " + str(D))
print ( " x1 = " + str(xone))
print ( " x2 = " + str(xtwo))
Finding xif D == 0:
x = -b / (2 * a)
print ( " D = " + str(D))
print ( " x = " + str(x))
if D < 0:
print ( " D = " + str(D))
print ( "Dont have x1 and x2! ")
...ANSWER
Answered 2020-Feb-26 at 02:37You're running into a problem here
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