rix | Rix language combines the power of C language

I am analyzing a dataset of physical habitat characteristics of a river. For each site we have a variety of variables that were measured across a 10 point transect. Summarizing most of these variables by Location, Reach, and Transect is simple but one of them, substrate, is scored using nonnumeric data. I am trying to create a summary for each transect to use in my statistical analysis but using dplyr's summarize and pivot_wider does not work. When I use summarize the nonnummeric value for the substrate variable returns an error, and for pivot_wider I do not have a value to enter for the new columns created from the Substrate variable.

This is an example of the raw data I am trying to summarize.

Location Reach Transect Flow Depth Substrate RIX 1 1 0.4 14 CO RIX 1 1 0.5 12 BO RIX 1 1 0.3 11 SA RIX 1 1 0.4 14 GR RIX 1 1 0.4 14 CO RIX 1 2 0.4 17 CO RIX 1 2 0.5 18 SA RIX 1 2 0.1 22 SA RIX 1 2 0.6 15 GR RIX 1 2 0.4 14 SILT RIX 2 1 0.4 14 CO RIX 2 1 0.5 12 BO RIX 2 1 0.3 11 SA RIX 2 1 0.4 14 GR RIX 2 1 0.4 14 CO RIX 2 2 0.4 17 CO RIX 2 2 0.5 18 SA RIX 2 2 0.1 22 SA RIX 2 2 0.6 15 GR RIX 2 2 0.4 14 SILT ARA 1 1 0.4 14 CO ARA 1 1 0.5 12 BO ARA 1 1 0.3 11 SA ARA 1 1 0.4 14 GR ARA 1 1 0.4 14 CO ARA 1 2 0.4 17 CO ARA 1 2 0.5 18 SA ARA 1 2 0.1 22 SA ARA 1 2 0.6 15 GR ARA 1 2 0.4 14 SILT ARA 2 1 0.4 14 CO ARA 2 1 0.5 12 BO ARA 2 1 0.3 11 SA ARA 2 1 0.4 14 GR ARA 2 1 0.4 14 CO ARA 2 2 0.4 17 CO ARA 2 2 0.5 18 SA ARA 2 2 0.1 22 SA RIX 2 2 0.6 15 GR RIX 2 2 0.4 14 SILT

Here is what I am trying to create.

Location Reach Transect Flow Depth CO GR SA SILT BO RIX 1 1 0.4 13 .40 .20 .20 0 .20 RIX 1 2 0.4 17.2 .20 .20 .40 .20 0 RIX 2 1 0.4 13 .40 .20 .20 0 .20 RIX 2 2 0.4 17.2 .20 .20 .40 .20 0

I am unsure how to go about filling the new columns I have created by using the pivot_wider function in dplyr and to keep the Transects separated by Location and Reach when I use the summarize function.

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