Difference between revisions of "Tools/rstudio"

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=== Nutrients blame chart ===
 
=== Nutrients blame chart ===
What ingredients are to blame for a specific nutrient? Can work with a stacked barchart. Each Nutrient on the horizontal axis.
+
What ingredients are to blame for a specific nutrient? Can work with a stacked barchart. Each Nutrient on the horizontal axis. Each bar shows which ingredient has contributed to that nutrient. Each ingredient should have its own colour.

Revision as of 17:42, 2 February 2025

Rstudio is a tool do do statistical analysis on data.

Recipe

The tool can be used to find the recipe of products.

Steps

We use the order as found on packaging, i.e. fat, sat. fat, carbs, sugar, fiber, proteins, salt).

Create the product data, e.g:

product <- c(58.0, 6.4, 6.4, 4.2, 8.5, 0.01)

Create the individual ingredients, eg.:

walnuts <- c(67.3, 6.45, 6.88, 3, 6.7, 13.3, 0.1)

Create the ingredients, e.g.:

ingredients <- c(walnuts, hazelnuts, cashews, almonds)

Create the array for 4 ingredients, e.g.:

Z <-array(ingredients, dim=c(7,4))

Fit:

lsFit <- lm(y~Z)

Fit with no intercept:

lsFitZero <- lm(y~Z +0)

Fit with no negative coefficients:

nnFit <- nnls(Z,y)

GLMN-fit

glmnetFit <- glmnet(Z,y, lambda = 0, lower.limit = 0, intercept = FALSE)

Dataframe:

plotData <- data.frame(variance,residuals)

Graph

ggplot(plotData, aes(variance,residuals)) + geom_point() + labs(title="Comparing ingredients") + annotate(geom = "text", x = 0.4, y = 0.1, label = "Wheat 110 + butter") + annotate(geom = "text", x = 1.4, y = 0.8, label = "Wheat 110 + butteroil") + annotate(geom = "text", x = 1.4, y = 0.2, label = "Wheat 150 + butter") + annotate(geom = "text", x = 0.4, y = 0.9, label = "Wheat 80 + butter")

Nutrients blame chart

What ingredients are to blame for a specific nutrient? Can work with a stacked barchart. Each Nutrient on the horizontal axis. Each bar shows which ingredient has contributed to that nutrient. Each ingredient should have its own colour.