MCC | Tracking my work through the Matasano Crypto Challenges | Cryptography library
kandi X-RAY | MCC Summary
kandi X-RAY | MCC Summary
Tracking my work through the Matasano Crypto Challenges. See: for more details.
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QUESTION
I have an array of JSON objects as
Structs:
...ANSWER
Answered 2021-Jun-04 at 19:50Based on the suggestions from comments I replicated your scenario as follows:
QUESTION
I have a dataframe containing results measured through Matthews correlation coefficient, F1 score, and accuracy, and I would like to generate barcharts for each of these metrics in R
using ggplot2
.
I am trying to loop over these three rates, but R
does not let me use a variable (this_rate
) to select the proper dataframe column for my plot.
Here's my (not working) code;
...ANSWER
Answered 2021-May-27 at 03:13When you are passing character values of column names use .data
to subset them. This works and creates separate pdf
for list_of_rates
.
QUESTION
I have used this code:
...ANSWER
Answered 2021-May-23 at 19:39Splitting each line by spaces and then creating a flatmap of all these values when you are primarily interested in a count of the domains may be giving additional work and definitely additional overhead and processing.
Based on the sample data provided, the domain is the first item on each line. I have also noted that some of your lines begin with an empty space and as such results in an additional string piece. You may considering using the strip
function to trim the line before the process.
You may consider modifying process to return only the first bit of the string or creating another map
operation which does.
QUESTION
Hi. I have quite a problem with the insertMany() function. My goal is:
- to observe a file named "List.json"
- if there are changes in it then reading the file
- then write documents from the file List.json to the database mongoDb List.json file is uploaded by user on the page.
The problem is that my function is working but it's writing me documents after 2 or 3 times. I don't know what it is caused by. I would like one document from the List.json file to be added only 1 time. If it is possible I would like the program to check if a document with the given "Nazwisko" already exists in the database. If it exists then do not add it to the database.
I do not use Moongose. I use only mongoDb and node.js I know little about mongo
This is my function
...ANSWER
Answered 2021-May-22 at 13:02From the code snippet you posted it seems that everything is fine, what I think is happening is that you're using watch
to track file changes ( i'm assuming a different process writes data into that file or something of the sort) and it just triggers multiple times.
The insertMany
is working as intended, you're just inserting the same document multiple times due to multiple file changes.
What I would do is build a unique index on the relevant fields that define a document uniqueness, potentially all fields.
Now when you try to insert a document that violates the uniqueness constraint it will fail, It is important to note that if you choose this solution you must use the ordered: false
option for the insertMany
. If you choose to remove it for whatever reason then a failed insert will make the any document that has not been inserted yet to fail as well.
Inserting a duplicate value for any key that is part of a unique index, ... With ordered to false, the insert operation would continue with any remaining documents.
QUESTION
I am using the following code
...ANSWER
Answered 2021-May-20 at 15:31Your code looks fine with sample data you provided (I reformat it as below). I suppose the problem could come from your data itself. Try to break down or limit your dataset?
QUESTION
I am attempting to remove empty XML elements from an XML, but having an issue with the elements that have attributes but no text values. I can successfully remove the empty XML elements, but cannot preserve the elements with attributes in the final XML. I would like to essentially clean up the XML and remove empty nodes with no text values altogether, but keep the nodes with attributes.
Below is the script I am using, along with the input and (desired) output XMLs....any assistance is most appreciated!
The Script:
...ANSWER
Answered 2021-May-19 at 22:08The xml is your question is not well formed, but assuming that's fixed, try changing this line
QUESTION
I am trying to remove double quotes from text file like :
in24.inetnebr.com [01/Aug/1995:00:00:01] "GET /shuttle/missions/sts-68/news/sts-68-mcc-05.txt" 200 1839 uplherc.upl.com [01/Aug/1995:00:00:07] "GET /" 304 0 uplherc.upl.com [01/Aug/1995:00:00:08] "GET /images/ksclogo-medium.gif" 304 0 uplherc.upl.com [01/Aug/1995:00:00:08] "GET /images/MOSAIC-logosmall.gif" 304 0 uplherc.upl.com [01/Aug/1995:00:00:08] "GET /images/USA-logosmall.gif" 304 0 ix-esc-ca2-07.ix.netcom.com [01/Aug/1995:00:00:09] "GET /images/launch-logo.gif" 200 1713 uplherc.upl.com [01/Aug/1995:00:00:10] "GET /images/WORLD-logosmall.gif" 304 0 slppp6.intermind.net [01/Aug/1995:00:00:10] "GET /history/skylab/skylab.html" 200 1687 piweba4y.prodigy.com [01/Aug/1995:00:00:10] "GET /images/launchmedium.gif" 200 11853 slppp6.intermind.net [01/Aug/1995:00:00:11] "GET /history/skylab/skylab-small.gif" 200 9202
The code I am trying is :
...ANSWER
Answered 2021-May-19 at 15:54Two things.
You missed return statement and instead of double quotes, use single quotes in replace statement. Here is pure python code, you can convert to "call from map" in spark.
QUESTION
I am attempting to remove parent XML elements based on the text of specific child elements containing values of "nan". The input XML contains namespaces which is making this trickier than expected and I can remove select child elements individually, but not the associated/adjacent parent elements. I am only able to remove the "nan" value associated with the gam:String element, but I would like to remove all child elements with "nan" text values and their associated parent elements.
Below is the script I am using, along with the input and (desired) output XMLs....any assistance is most appreciated!
The Script:
...ANSWER
Answered 2021-May-13 at 23:47This has to be done in two stages: first remove all nodes with nan
text nodes and then go over the empty nodes created by the first step and remove them as well:
QUESTION
Given the following document structure:
...ANSWER
Answered 2021-May-14 at 11:42Here is a solution using an inline projection:
QUESTION
I am running a parameter grid with GridSearchCV on python 3.8.5 and sklearn 0.24.1:
...ANSWER
Answered 2021-May-14 at 02:43I tried something similar to your code with a few different sklearn versions. As it turns out, version 0.24.1 does not print out the scores when verbose=3
.
Here's my code and output with sklearn version 0.22.2.post1:
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