assign.gdsn {gdsfmt} | R Documentation

## Assign/append data to a GDS node

### Description

Assign data to a GDS node, or append data to a GDS node

### Usage

    assign.gdsn(node, src.node=NULL, resize=TRUE, seldim=NULL, append=FALSE,
        .value=NULL, .substitute=NULL)

### Arguments

`node` | an object of class `gdsn.class`, a target GDS node
`src.node` | an object of class `gdsn.class`, a source GDS node
`resize` | whether call `setdim.gdsn` to reset the dimension(s)
`seldim` | the selection of `src.obj` with numeric or logical indicators, or `NULL` for all data
`append` | if `TRUE`, append data by calling `append.gdsn`; otherwise, replace the old one
`.value` | a vector of values to be replaced in the original data array, or `NULL` for nothing
`.substitute` | a vector of values after replacing, or NULL for nothing; `length(.substitute)` should be one or `length(.value)`; if `length(.substitute)` = `length(.value)`, it is a mapping from `.value` to `.substitute`

### Value

None.

### Author(s)

Xiuwen Zheng

### References

http://github.com/zhengxwen/gdsfmt

### See Also

`read.gdsn`, `readex.gdsn`, `apply.gdsn`, `write.gdsn`, `append.gdsn`

### Examples

    f <- createfn.gds("test.gds")

    n1 <- add.gdsn(f, "n1", 1:100)
    n2 <- add.gdsn(f, "n2", storage="int", valdim=c(20, 0))
    n3 <- add.gdsn(f, "n3", storage="int", valdim=c(0))
    n4 <- add.gdsn(f, "n4", matrix(1:48, 6))
    f

    assign.gdsn(n2, n1, resize=FALSE, append=TRUE)

    read.gdsn(n1)
    read.gdsn(n2)

    assign.gdsn(n2, n1, resize=FALSE, append=TRUE)
    append.gdsn(n2, n1)
    read.gdsn(n2)

    assign.gdsn(n3, n2, seldim=
        list(rep(c(TRUE, FALSE), 10), c(rep(c(TRUE, FALSE), 7), TRUE)))
    read.gdsn(n3)

    setdim.gdsn(n2, c(25,0))
    assign.gdsn(n2, n1, append=TRUE, seldim=rep(c(TRUE, FALSE), 50))
    read.gdsn(n2)

    assign.gdsn(n2, n1); read.gdsn(n2)
    f

    ##

    read.gdsn(n4)

    # substitute
    assign.gdsn(n4, .value=c(3:8,35:40), .substitute=NA); read.gdsn(n4)

    # subset
    assign.gdsn(n4, seldim=list(c(4,2,6,NA), c(5,6,NA,2,8,NA,4))); read.gdsn(n4)

    n4 <- add.gdsn(f, "n4", matrix(1:48, 6), replace=TRUE)
    read.gdsn(n4)
    # sort into descending order
    assign.gdsn(n4, seldim=list(6:1, 8:1)); read.gdsn(n4)

    # close the GDS file
    closefn.gds(f)

    # delete the temporary file
    unlink("test.gds", force=TRUE)

[Package gdsfmt version 1.20.0 Index]