# hadamardproduct_byname: Name-wise matrix Hadamard multiplication In matsbyname: An Implementation of Matrix Mathematics

### Description

Performs a union and sorting of names of rows and columns for both multiplicand and multiplier for each sequential multiplication step. Zeroes are inserted for missing matrix elements. Doing so ensures that the dimensions of the multiplicand and multiplier are be conformable for each sequential multiplication.

### Usage

```hadamardproduct_byname(..., .summarise = FALSE)
```

### Arguments

 `...` Operands; constants, matrices, or lists of matrices. `.summarise` When `TRUE`, operands are multiplied down lists. When `FALSE` (the default), items multiplied across lists.

### Details

The Hadamard product is also known as the `entrywise` product.

### Value

Name-wise element product of operands.

### Examples

```library(dplyr)
commoditynames <- c("c1", "c2")
industrynames <- c("i1", "i2")
U <- matrix(1:4, ncol = 2, dimnames = list(commoditynames, industrynames)) %>%
setrowtype("Commodities") %>% setcoltype("Industries")
G <- matrix(1:4, ncol = 2, dimnames = list(rev(commoditynames), rev(industrynames))) %>%
setrowtype("Commodities") %>% setcoltype("Industries")
U * G # Not what is desired, because names aren't aligned
# This also works with lists
DF <- data.frame(U = I(list()), G = I(list()))
DF[[1,"U"]] <- U
DF[[2,"U"]] <- U
DF[[1,"G"]] <- G
DF[[2,"G"]] <- G