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How should I handle a mass-point in the dependent variable when running OLS regression in R? I’m working with a a household expenditure dataset (Living Costs 2019) where the dependent variable is the ...
Jimothan's user avatar
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2 answers
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I'm trying to use the marginaleffects library in R to get the estimates of a bunch of interaction effects from a bunch of different models. When I pass it an interaction that has a continuous ...
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Best practices
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If I have data lake.. which have a lot of files and data.. structured and un structured .. is it the correct place , or what is the best practice to create the physical, logical model of my data.. ...
ray's user avatar
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Very new to python! I am trying to model bottom water temperatures over time and need to reduce the resolution of my model from 1/20º to 1º. My ultimate goal is to map this and select specific grid ...
Alexis's user avatar
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1 vote
1 answer
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I am running all of this on a Kaggle cloud notebook (so it is a cloud environment) but I am not confident that it is configured correctly because I'm getting a CUDA initialization error. The answer at ...
Sankarshan Acharya's user avatar
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1 vote
1 answer
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I have two data frames (in R), one with some environmental data and one with the occurrences of some species. I want to find the closest points (lon,lat) of the environmental data frame WHICH HAS A ...
Emigdio Marin's user avatar
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1 answer
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I am trying to use Matplotlib to create a complex geometric pattern that looks like the following image. My current approach works by "faking" the curved, clipped shapes. I first draw six ...
qmoi's user avatar
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1 answer
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I am trying to run Hydroblocks model, for Kaledhon region, and i make sure that, all input data has properly set. But i am facing problems in pre-processing step steps itself. am trying again and ...
khushboo kumari's user avatar
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the following diagram depicts activities done by the vessel object in when in scheduled voyage time frame. each vessel has shipments, each time its docked checks for all shipments, if 1 reaches ...
Nouira Firas's user avatar
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3 votes
2 answers
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I draftet UML state diagrams to represent the lifecycle of voyages, shipments, and vessels in a maritime logistics system. Before finalizing the model, I want to make sure it's valid according to UML ...
Nouira Firas's user avatar
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1 vote
0 answers
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I have the following situation: I’m given a univariate time-series dataset y that I wish to model using feature variables X, which are provided alongside y. Naturally, my instinct is to split the data ...
testing_dummy's user avatar
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2 votes
1 answer
82 views

I'm modeling shipment creation sequence diagram. User creates shipment request -> system checks container/voyage candidates (reference to generate candidates diagram). (1)If candidates exist -> ...
Nouira Firas's user avatar
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1 answer
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Question Is it better to use larger timesteps that necessitate more sweeps, or shorter timesteps that permit fewer sweeps? I define 'better' as meaning a better 'accuracy-to-computation' ratio. ...
Isaac Blanc's user avatar
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1 answer
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Question Am I correct in using volumetric properties when simulating the heat diffusion equation with FiPy? Context I am solving the transient heat diffusion equation with an explicit source term. ...
Isaac Blanc's user avatar
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I am using JagsUI to run many single and multi-predictor models, using the autojags() function to run them until convergence. I would like to do model selection using WAIC, rather than DIC. The JagsUI ...
madip's user avatar
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0 answers
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Main error: PicklingError: Can't pickle <class 'neurolib.utils.parameterSpace.ParameterSpace'>: it's not the same object as neurolib.utils.parameterSpace.ParameterSpace Full error: Python ...
avezee's user avatar
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I am trying to make a model that dynamically predicts the temperature and humidity at any point in my enclosed room for a hydroponics project. I have placed temp and humidity sensors around the room ...
MTDropH's user avatar
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0 answers
27 views

I'm currently trying to create a 6DOF fixed wing uav model inside simulink with this playlist. I created a plane model inside xflr5 and followed the steps inside the video for transferring to the ...
Ercan İnan's user avatar
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0 answers
101 views

I am encountering a JWT validation error while testing API for MSTR Modeling service to get Security filter definition: '/MicroStrategyLibrary/api/model/securityFilters/{SF_ID}' Error Response: { ...
user29982697's user avatar
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3 votes
1 answer
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Currently I am building an economic model in Python GEKKO: m = GEKKO() m.time = np.arange(0, 200, 1) #define the variables consumption = m.Var() tax = m.Var() ...
user29971580's user avatar
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I am trying to solve a nonlinear system of differential equations in Wolfram Mathematica using NDSolve and visualize the solution with Manipulate. However, I encounter the following error when running ...
Raihanah Nazihah's user avatar
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1 vote
1 answer
132 views

I attempted to download the current chelsa 2.1 climate variables using pastclim. However, I keep getting the error: Error: buildvrt: options error. terra, gdal, and pastclim are up-to-date. Is this ...
Garrett Gimbel's user avatar
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1 vote
1 answer
45 views

I want my turtles (builders) to build roads which connect to other roads, so they have to die when they encounter a grey patch in any of their four non-diagonal neighbors except the patch they were ...
viheleha's user avatar
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0 votes
1 answer
78 views

I have created a dynamically updated table where the legnth of criteria in column AL changes. My problem is that the formula in column AN only extends as far as I have it pasted. Is there a way to get ...
user29643111's user avatar
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0 votes
1 answer
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With reference to the attachment, data has a many to many relationship with both entities. What would be the right thing to do? To add more context, each data entry can have 0, 1, 2, ..., N categories,...
Jackanap3s's user avatar
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0 answers
13 views

I used an ERA5 database and data from a weather ground station. I want to estimate CO2 emission rates from known sources using a combination of weather station data, mobile CO2 sensors and databases ...
Medusa Medusa's user avatar
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0 answers
64 views

I'm working to minimize the RMSE for the Boston housing data set. This is a very basic result: library(Metrics) df <- MASS::Boston train <- df[1:400, ] test <- df[401:506, ] Boston_lm <- ...
Russ Conte's user avatar
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0 answers
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I've got a bit of a theoretical question surrounding DDD and aggregates. It really boils down to this: Yes, we all know that within an aggregate everything must stay consistent. But does that mean ...
JackG's user avatar
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0 answers
44 views

I'm currently learning DDD and am having trouble modeling invariants in a many to many relationship Lets suppose I am attempting to model a school scheduling program, and I have the following ...
JackG's user avatar
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0 votes
1 answer
134 views

I'm learning about DDD and am attempting to model a basic interaction between a user and a shopping cart, and am wondering if the following code is directly aligned with DDD principles, or if there is ...
JackG's user avatar
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2 votes
0 answers
61 views

I'm using tensorflow estimator for my model and it works for training and evaluation part (Code snippet given below). While the accuracy being displayed from the results are 93%, the precision and ...
Prem's user avatar
  • 21
0 votes
1 answer
67 views

I'm reproducing this paper and confused with the notation. There, z_{i} is a slack variable with single index. However, the definition of it: z_{i}: ith row vector in an m × N_{R} matrix of positive ...
dzdws's user avatar
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0 answers
34 views

In DWH system one has a lot of dimension (lookup) tables (like statuses, types, categories, etc.) These tables are almost always very small but in one regular DWH there could be hundreds of them. Many ...
sbrbot's user avatar
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0 answers
55 views

The code below runs SARIMAX to predict product demand by customer. First, the product types by customer are considered as a single combination, and then STL decomposition is performed on each ...
Hayaialaka's user avatar
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0 votes
1 answer
41 views

I have several errors in the following line: e3_d(b).. sum( (t)$(ord(t) >= 1) and (ord(t) <= t-N_chp_on_max+N_chp_on_max), alpha(b, t) ) =l= N_chp_on_max; Two errors (',' expected) and (Unknown ...
its Nima's user avatar
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1 vote
1 answer
62 views

Starting from the example Continuous space social distancing, I'm trying to create a model that involves merging each pair of nearby agents into an agent of a different type, with other properties. ...
Leonardo Castro's user avatar
  • 107
1 vote
0 answers
24 views

I am new to Computational Chemistry. I am working on a project that requires that I attach a bunch of ctma molecules to a dna molecule in Amber xleap. Is there a command in Amber xleap that can help ...
Ibrahim Siddiq's user avatar
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0 votes
1 answer
148 views

I have following dataframe: > test_df sample pers expl resp 1 1 1 a 1 2 2 2 a 1 3 3 3 a 1 4 4 4 a 1 5 5 5 a 1 6 6 ...
Carpa's user avatar
  • 468
-1 votes
1 answer
60 views

I'm working on an optimization problem using IBM's OPL (Optimization Programming Language). I have defined a set called ExtGraphNodes in my model file, but when I try to use it in my data file, I ...
abolfazl AKHONDZADE's user avatar
  • 1
2 votes
1 answer
91 views

I'm, wondering if there is at least a name and/or a generic solution for the following problem: I have an object that has some properties. { "name": "Foo", "colour&...
koks der drache's user avatar
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0 votes
1 answer
137 views

I’m working on creating a web application to simulate piping systems, where you can place pipes precisely and track the fluid flow theoretically (using thermodynamic calculations), including pressure ...
hichem moumni's user avatar
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0 votes
1 answer
177 views

I'm conducting data exploration on lots of parameters (including multiple ways to summarize a parameter). I'm trying to prioritize variables for prediction onto test data. I'd like to use dredge to ...
Quinn's user avatar
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1 vote
1 answer
53 views

I am trying to simulate an electronical device that can be modeled by a mass-spring-damper system with an additional non-linear force. The equation at the equilibrium for the system is the following : ...
aloyssss's user avatar
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0 votes
1 answer
73 views

I need to set SUMO (Simulation of Urban Mobility) so that no action is taken when vehicle collisions occur. To do this, I need to change the --collision.action option, which by default has value "...
Li399's user avatar
  • 1
2 votes
1 answer
74 views

I'm reasonably new to R and have this system of ODEs \frac{dS}{dT} = -\beta(1-\mu)S(t)\frac{I(t))}{1-D(t))} \frac{dI}{dT} = -\beta(1-\mu)S(t)\frac{I(t))}{1-D(t))}-\delta I(t))-\phi I(t)) \frac{dR}{dT}=...
Tom FitzGerald-Jones's user avatar
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0 votes
1 answer
83 views

I'm assigning rooms to lessons in my schedule generator. My current model looks like this: @PlanningEntity class Lesson { ... @PlanningVariable(allowsUnassigned = true) Room room; Set&...
aioobe's user avatar
  • 423k
1 vote
0 answers
65 views

I am currently working on calculating the total irradiance falling on walls of different orientations (North,South,East,West) in Toronto. For this I have a weather data file that consists of DHI, DNI ...
Aynkaran Aymmugan's user avatar
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0 votes
1 answer
96 views

I am trying to build my library for hydraulic calculations. I have a problem with the pipe model. This is what my pipe model looks like: model pipe_v0 import Modelica.Units.SI; parameter SI.Area ...
Volodymyr S's user avatar
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1 vote
1 answer
291 views

I am making a DFD diagram for software that is going to run on a PLC to control a testing setup.In this setup i have 7 load cells and 7 hydraulic valves. I am wondering if i need to show all 7 of them ...
tijnvr's user avatar
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1 vote
1 answer
74 views

I would like to incoparate a rate that changes with times in a metapopulation model using code by B. Raynor. The code was originally published at https://rpubs.com/bhraynor/MetapopulationModel In the ...
ccc's user avatar
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