reformat the headers

training/02_creating_a_data_package.Rmd

@@ -104,7 +104,7 @@ If you are curious how everything magically works, here is a handy diagram:
 ```{r, child = '../workflows/edit_data_packages/01_datapack_background.Rmd'}
 ```
 
-### Exercise 2a {.exercise}
+## Exercise 2a {.exercise}
 
 Select a dataset from the catalog on arcticdata.io and checkout the number of files and provenance relationships in the dataset.
 

workflows/edit_data_packages/01_datapack_background.Rmd

@@ -9,13 +9,14 @@ library(datapack)
 library(uuid)
 ```
 
-### Data packages
+**Data packages**
 
 Data packages are a class that has slots for `relations` (provenance), `objects`(the metadata and data file(s)) and `systemMetadata`.
 
 ### Navigating data packages
 
-#### Nodes
+**Nodes**
+
 Using this example on arcticdata.io
 ```{r, eval = F}
 d1c_test <- dataone::D1Client("STAGING", "urn:node:mnTestARCTIC")
@@ -35,8 +36,7 @@ Get an existing package from the Arctic Data Center
 dp <- dataone::getDataPackage(d1c, "resource_map_urn:uuid:1f9eee7e-2d03-43c4-ad7f-f300e013ab28")
 ```
 
-
-#### Data
+### Data Objects
 Check out the `objects` slot
 ```{r, eval=F}
 dp@objects
@@ -47,21 +47,28 @@ Get the number for data and metadata files associated with this data package:
 getSize(dp@objects)
 ```
 
-#### Provenance
-View the provenance as a dataTable. We will get into detail in the Building provenance chapter.
+Get the file names and corresponding pids
 ```{r, eval=F}
-dp@relations$relations
+getValue(dp, name="sysmeta@fileName")
 ```
 
-##### Get identifiers
+**Get identifiers**
+
 You can search by any of the `sysmeta` slots such as `fileName` and `formatId` and get the corresponding identifier(s):
 ```{r, eval = F}
 metadataId <- selectMember(dp, name="sysmeta@ADD THE NAME OF THE SLOT", value="PATTERN TO SEARCH BY")
 ```
 
-For example:
+**Example:**
 ```{r, eval = F}
 selectMember(dp, name="sysmeta@formatId", value="image/tiff")
 selectMember(dp, name="sysmeta@fileName", value="filename.csv")
 ```
 
+
+### Provenance
+
+View the provenance as a dataTable. We will get into detail in the Building provenance chapter.
+```{r, eval=F}
+dp@relations$relations
+```