dagrha

-- KOReader user patch to add all ebooks found on device to the Favorites collection

function find_files(directory, file_extensions)
    local result = {}
  
    -- Helper function to recursively search for files
    local function search_files(dir)
        for file in io.popen('ls -1 "' .. dir .. '"'):lines() do
            local path = dir .. '/' .. file
            local file_extension = file:match("^.+(%..+)$")

dagrha

# © 2020 dagrha. GPLv3.0

def linear_regression(df, x_col, y_col):
    
    from sklearn.linear_model import LinearRegression
    from sklearn.metrics import r2_score
    
    x = df[(df[x_col].notnull()) &(df[y_col].notnull())][x_col].values.reshape(-1, 1)
    y = df[(df[x_col].notnull()) &(df[y_col].notnull())][y_col].values.reshape(-1, 1)