SimpleLM | standalone python classes for training statistical language | Machine Learning library
kandi X-RAY | SimpleLM Summary
kandi X-RAY | SimpleLM Summary
Simple, standalone python classes for training statistical language models using several popular smoothing methods. Also includes a script for evaluating LM sentence probabilities and retrieving individual NGram probabilities.
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Top functions reviewed by kandi - BETA
- Push a word onto the stack
- Remove the element from the list
SimpleLM Key Features
SimpleLM Examples and Code Snippets
Community Discussions
Trending Discussions on SimpleLM
QUESTION
I have seen pairwise or general paired simple linear regression many times on Stack Overflow. Here is a toy dataset for this kind of problem.
...ANSWER
Answered 2018-Aug-26 at 19:26(Link in the picture: Function to calculate R2 (R-squared) in R)
Computational detailsComputations involved here is basically the computation of the variance-covariance matrix. Once we have it, results for all pairwise regression is just element-wise matrix arithmetic.
The variance-covariance matrix can be obtained by R function cov
, but functions below compute it manually using crossprod
. The advantage is that it can obviously benefit from an optimized BLAS library if you have it. Be aware that significant amount of simplification is made in this way. R function cov
has argument use
which allows handling NA
, but crossprod
does not. I am assuming that your dat
has no missing values at all! If you do have missing values, remove them yourself with na.omit(dat)
.
The initial as.matrix
that converts a data frame to a matrix might be an overhead. In principle if I code everything up in C / C++, I can eliminate this coercion. And in fact, many element-wise matrix matrix arithmetic can be merged into a single loop-nest. However, I really bother doing this at the moment (as I have no time).
Some people may argue that the format of the final return is inconvenient. There could be other format:
- a list of data frames, each giving the result of the regression for a particular LHS variable;
- a list of data frames, each giving the result of the regression for a particular RHS variable.
This is really opinion-based. Anyway, you can always do a split.data.frame
by "LHS" column or "RHS" column yourself on the data frame I return you.
pairwise_simpleLM
QUESTION
ggplot() +
geom_point(aes(x = Africa_set$Africa_Predict, y = Africa_set$Africa_Real), color ="red") +
geom_line(aes(x = Africa_set$Africa_Predict, y = predict(simplelm, newdata = Africa_set)),color="blue") +
labs(title = "Africa Population",fill="") +
xlab("Africa_set$Africa_Predict") +
ylab("Africa_set$Africa_Real")
...ANSWER
Answered 2017-May-01 at 18:34It looks like you are trying to plot points with a fitted regression line on top. You can do this using:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install SimpleLM
You can use SimpleLM like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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