sims | Student information management system SIMS , Java Servlet | Build Tool library

I did 10,000 stochastic implementations of a model, and want to plot some outputs. Long story short, the plot shows how long two species co-occurred within the system on a given run. Here's an example:

Now, I want to colour the histogram bars to specify which species lasted longer within the system. Specifically, I want to be able to specify if Species A outlasted Species B, if Species B outlasted Species A, or if both species went "extinct" at the same time, within a given simulation.

So, I made three vectors containing the run numbers (out of 10,000) for each of these three outcomes. For example:

I am a little new to this. I need to stop a user from navigating back to the previous page after submitting details. I need your help. Is there a way I can prevent a user from returning back to a specific Screen in a stack. Here is a snippet of my Stack.

After ADD_CUSTOMER_DETAILS_2 once the user navigates to ADD_CUSTOMER_PHOTOS, I would like to prevent the user from navigating back to ADD_CUSTOMER_DETAILS_2

I have a data set, example below, that has multiple peaks. I want the x value of minima between the peaks. If I need to define how many minimia, that is not a problem (i.e. I am expecting three peaks in my data, so I can tell the code to get two minimia.)

I used density() to fit the data, but I am stuck in getting the multiple minima values:

example data:

I have trained a gensim doc2vec model for an English news recommender system. the model was trained with 40K news data. I am using the code below to recommend the top 5 most similar news for e.g. news_1:

This is for an assignment in my object oriented programming class.

I am a beginner, especially with this language, so a lot of things could be wrong with this code.

For now, I am focusing on the error it keeps giving me when I run it: error CS0103: "The name `StudentList' does not exist in the current context."

I thought that by making my list public, this issue wouldn't occur.

It gives this error for every object that I try to add to the list in MainClass. This is my first time using lists in C#. Am I missing something pretty obvious? How do I fix this?

I am very much a beginner at C# and for some reason, my method is not doing what I want it to.

The method I am referring to is the Roll() method. I want it to print the class name and all of the students in the class list whenever I call the method. It doesn't do any of that. All it does is print "Roster:", leaving out the things I want it to print. Am I missing something? How can I fix this?

I have been struggling with this for hours now. I have the following script:

I'm new to python (and posting on SO), and I'm trying to use some code I wrote that worked in another similar context to import data from a file into a MySQL table. To do that, I need to convert it to a dataframe. In this particular instance I'm using Federal Election Comission data that is pipe-delimited (It's the "Committee Master" data here). It looks like this.

C00000059|HALLMARK CARDS PAC|SARAH MOE|2501 MCGEE|MD #500|KANSAS CITY|MO|64108|U|Q|UNK|M|C|| C00000422|AMERICAN MEDICAL ASSOCIATION POLITICAL ACTION COMMITTEE|WALKER, KEVIN MR.|25 MASSACHUSETTS AVE, NW|SUITE 600|WASHINGTON|DC|200017400|B|Q||M|M|ALABAMA MEDICAL PAC| C00000489|D R I V E POLITICAL FUND CHAPTER 886|JERRY SIMS JR|3528 W RENO||OKLAHOMA CITY|OK|73107|U|N||Q|L|| C00000547|KANSAS MEDICAL SOCIETY POLITICAL ACTION COMMITTEE|JERRY SLAUGHTER|623 SW 10TH AVE||TOPEKA|KS|666121627|U|Q|UNK|Q|M|KANSAS MEDICAL SOCIETY| C00000729|AMERICAN DENTAL ASSOCIATION POLITICAL ACTION COMMITTEE|DI VINCENZO, GIORGIO T. DR.|1111 14TH STREET, NW|SUITE 1100|WASHINGTON|DC|200055627|B|Q|UNK|M|M|INDIANA DENTAL PAC|

When I run this code, all of the records come back "NaN."

I've got several thousand JSON files. Most of them can have a single JSON array with as many as 10,000 elements inside the array ... and to make things even more interesting, the data structure of the elements can vary from element to element ... sometimes with just a simple single property deviation from the norm to deviations that add even more arrays within each element. But it's this "items" array that I need to extract from each of these files.

The method of attack on this problem - in my logic that is - is to first extract each of the different data structures from all of the files, so that I understand what I'm going after when I try to get the data. If I can't name the elements that I want, then how could I get them? Though there might actually be a way of doing that, I'm just not knowledgeable enough on JSON and GSON, etc. to know one way or the other.

This will be my first real JSON project as well ... I've not ever played with JSON before so I've spent a lot of time Googling and reading and I definitely understand - NOW - how JSON works ... I'm just ill-equipped to wield it with any kind of effectiveness. I've spent the last couple of days on these files, and although I've gained some ground, I'm smart enough to know when I've gotten to the point where I need some help from people who have done this before.

These examples are not cut and paste from these files. I made them generic for simplicity. But here is what I've seen so far as an example of the differences in structures from one file to the next. The first file is by far the most common ... where the "items" array will have that static structure with the exact same element names but there will be 10,000 of them within a file ... while the next file won't be so clean.

Most common JSON file that I am seeing among these files: