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1
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164
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Singular Matrix 'a' in solve
I am trying to use predict function in RStudio on some new data. However I keep getting an error, "Error in qr.solve(qr.R(qrX)[p1, p1]) : singular matrix 'a' in solve". Where is my mistake? ...
-2
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1
answer
188
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Sensitivity analysis based on variance
Please help me in understanding the sensitivity analysis based on variance in ml models
I am working on a binary classification problem apart from predicting the target variable I am also interested ...
1
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0
answers
56
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Does Sonoma's predictive text work inside Electron?
I haven't been able to get Sonoma's predictive text to work inside Electron. Is this supported?
Typing "Have a " will suggest "Have a nice day" in iMessage, but it won't do the ...
2
votes
1
answer
91
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Producing a semi-RNG with a reproducible outcome in C (no random/urandom)
I wish to create a "randomness", or at least a large amount of entropy given certain data sets. The outcome must be predictable/constant, though, based on various factors, what datasets are ...
0
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1
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392
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Repeated Logistic Regression over time
I have a dataset of people where I know their age, address, and past behaviour. I know the date on which they took a certain action and Im trying to create a logistic regression model to identify who ...
1
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5
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144
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R copy data in row of a data frame but subtract one column value by 1
I'm trying to create hypothetical data for a predictive analysis. I have a set of averages I plan to apply my predictive model to. However, I want to expand my DF with various values in the ...
-1
votes
1
answer
102
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Categorical Feature relation with Target Feature (Discreate Numerical Feature)
I am currently working on Regression problem statement wherein we have around 13 Numerical Features and 38 Categorical Feature and we are required to predict the Target feature (Discreate Numerical ...
0
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2
answers
1k
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Cannot find 'Submission.csv' File in 'Google Colab
I have run a predictive model in Google Colab and saved the 'Submission.csv' file. Now I don't know how to locate the file on colab and upload it to the comp. site. Can anyone advice please and thank ...
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0
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115
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How to perform dynamic optimization for a nonlinear discrete optimization problem with nonlinear constraints, using non-linear solvers like SNOPT?
I am new to the field of optimization and I need help in the following optimization problem. I have tried to solve it using normal coding to make sure that I got he correct results. However, the ...
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0
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78
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How to make a predictive model using a timeseries data consisted of binary information?
How would you do regression to predict the sate in a future time:
SeriesYear MonthDay State
0 1 2019 12 13 [1, 0, 0, 1, 0, 0]
1 2 2019 12 17 [0, 1, 0, 0,...
1
vote
1
answer
215
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ambiguous or conflict in LL1 grammar for a shell in C
i'm implementing a LL(1) parser for a project of doing a shell implementation.
i'm stuck trying to resolve conflicts in my grammar :
Parsing mode: LL(1).
Grammar:
1. COMMAND_LINE -> ...
1
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0
answers
63
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How would I use historical data of wind generation to make a thousand continuous distribution curves
I am stumped on a problem. Say you have the last ten years of wind generation data (let's pick August) in the form of every hour of every day. How would I go about creating a set (say of 1,000) wind ...
0
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1
answer
49
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How to combine the dataset in python as below requirement
I have a dataset for which I need to add two new columns to an existing dataframe at the end.
0
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0
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103
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Approach to predictive modelling of monthly orders using R
I have a question regarding what approach to building a predictive model in R would be best for my data.
Say I have a series of orders per month for the past 5 years. The data have three variables- ...
0
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1
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819
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Display correlation between two columns on a plot in R
I have a csv file with some data. Here is the example of data from it (from R Studio):
and result of data.frame(df):
> data.frame(df)
date team_1 team_2 X_map result_1 ...